sport optics
SPORT OPTICS
Discover nature with
A new era
of animal watching
OPTOLYTH® ViaNova
It’s the new way
ViaNova is the new, easy to carry compact series of
binoculars with internal focusing for ornithologists,
nature lovers and hunters. The compact design and the
large central adjustment wheels make these binoculars
particularly user friendly. Our outstanding high-contrast
optics featuring Ceralin-plus-Multicoating and phase corrected prism systems
guarantee a brilliant picture with edge-to-edge clarity across the entire field of view. For
easier handling the dioptre compensation was equipped with a resolution while the argon
filling makes the internal optics fog proof.
ViaNova 8x56 BGA
With the Amici prism binoculars type ViaNova 8x56 we offer binoculars of the highest optical
quality paired with an appealing design. The large ocular lenses and a convincing field of
view of 128 metres guarantee an absolutely even image with excellent resolution. The
adjustable eyecups offer secure eye rest and the correct distance to the eyepiece lens.
Since the internal focusing unit naturally seals the ViaNova 8x56, these binoculars
will not let you down even in the most extreme of weather conditions and support
you in any situation you might encounter.
ViaNova
With its
reliability
2
7x42 BGA
compact and sturdy yet light design, its perfect optical performance and superior
the ViaNova 7x42 fulfils all requirements for a pair of OPTOLYTH® binoculars.
Eyeglass wearers will find that the adjustable eyecups and special eyepieces
for eyeglass wearers make these binoculars the ideal companion on hikes in
the mountains and in familiar hunting territories for anyone. At a weight of 830
grams and a field of view of 135 metres these binoculars are ideal for daily use and
considering its competitive price the ViaNova 7x42 leaves nothing to be desired.
Discover nature with OPTOLYTH®
OPTOLYTH® ViaNova
The advantages at a glance:
E­­­ xtremely user friendly
Large, centrally located focus wheel
Ceralin-plus-Multicoating
Perfect high-contrast imaging across the entire field of view
Adjustable eyecups for eyeglass wearers
Waterproof through internal focusing
Argon filled
Model
7x42
BGA
8x56
BGA
Magnification
7x
8x
Objective lens-Ø (mm)
42
56
Field of view (m) / degree
135 / 7,69
128 / 7,3
Twilight factor
17,1
21,2
Weight (g)
820
1330
Product number
FG - 15031
FG - 15021
Discover nature with OPTOLYTH®
3
Perfection for
true experts
OPTOLYTH® ROYAL
The crowning achievement of a big name
Today’s standards for hunting and game keeping
are much higher than in the past, therefore raising
its values beyond that of the past. The hunter is both
sportsman and ecologist and ensures that the balance
in his hunting territory is kept. The ROYAL series meets
these requirements.
For the hands-on, challenging use over the course of many years all binoculars are rubber armoured. The two focusing wheels
make the binoculars easy to operate even during longer periods of observation. These still hunting glasses provide edge-toedge sharpness even in the twilight. Naturally the Abbe-König prism system is phase corrected and, like all other lenses used
for these binoculars, features the Ceralin-plus-Multicoating. It goes without saying that the binoculars are water resistant and
filled with argon gas.
ROYAL 8x56
Probably the most widely used binoculars while still hunting for wild boars and red deer. A very
large exit pupil and an easily manageable magnification make hours of observation easier. The low
light performance of the ROYAL 8x56 is only slightly inferior to that of the ROYAL 9x63. However,
the ROYAL 8x56 is slightly smaller, lighter and therefore easier to handle.
ROYAL 10x56
The ideal companion for an extensive hunting territory. When great distances need to be covered,
the high magnification proves its advantages. The greatest possible clarity and brightness as well as
the even image make it easier to observe and identify game animals.
ROYAL 9x63
The 9x63 BGA is particularly suited to still hunting at night. A combination of 9x
magnification and 63mm field lenses produces clear images even in poor lighting conditions.
A high resolution, even around the edges supports the hunter in his decision process. These
binoculars enable you to hunt longer in twilight conditions.
ROYAL 15x63
Easily manageable Amici binoculars with 5-lens object lenses with fluoride achromatic lens
system. Bird and animal watchers experience brilliant colour balance, impressive imaging
capabilities and all-out quality even at long distances. An integrated tripod connection facilitates
observation at long distances.
4
Discover nature with OPTOLYTH®
OPTOLYTH® ROYAL
The advantages at a glance:
Highest luminosity and brightness
High resolution even around the edges and long-range depth of focus
Ceralin-plus-Multicoating
Robust rubber armouring for rugged outdoor use
Impact resistant mounting of lenses
Genuine eyepieces for eyeglass wearers
Easy focusing with two focusing wheels
Rain resistant and argon filled
Model
8x56
BGA
10x56
BGA
9x63
BGA
15x63
BGA
Magnification
8x
10x
9x
15x
Objective lens-Ø (mm)
56
56
63
63
Field of view (m) / degree
110 / 6,3
105 / 6,0
100 / 5,7
72 / 4,1
Twilight factor
21,2
23,7
23,8
30,7
Weight (g)
1070
1100
1160
1340
Product number
FG - 14031
FG - 14081
FG - 14051
FG - 14091
Discover nature with OPTOLYTH®
5
Mini binoculars –
maximum performance
OPTOLYTH® SPORTING
The binoculars for everyone
Our folding binoculars are readily available wherever there
is something to see, especially when weight is an issue. The
SPORTING series covers a wide range of uses. When folded these
binoculars accompany you anywhere and, when needed, they are ready
to use at a moment’s notice. No matter where – at the race track, at a regatta or at the stadium – the SPORTING series
brings all those details up close others can only imagine. Thus this small treasure is the ideal gift for all hikers and nature
watchers.
All binoculars in the SPORTING series are dust as well as waterproof, nitrogen filled and convince with a moderate field of
view, e.g. for use in water sports, while travelling or in open air theatres. Genuine eyepieces for eyeglass wearers, modern
internal focusing and an attractive, non-slip rubber armouring complete the features. The binoculars of the SPORTING
series convince by being low-weight and convenient to carry, so that they almost imperceptibly find space in even the
smallest bags or pockets when folded.
SPORTING 8x24
These featherweight binoculars weigh only 220 grams, hardly more than a bar of chocolate. They
are ideal for all those who have to consider weight when assembling their equipment like e.g.
going on a high performance trek in the Himalayas for several weeks where every ounce feels
twice as heavy very soon. The large field of view opens up the spacious surroundings to the
climbers and they find inspiration for new tours.
SPORTING 10x28
The 10x magnification makes these binoculars ideal companions for nature lovers who want to
be prepared for all eventualities. At sporting events such as golf tournaments or football matches
the SPORTING binoculars let you experience the events as if you were part of them. With their
very compact measurements of 114x100x33 mm they can be stowed even in the smallest bags.
SPORTING 12x30
A high magnification at close range of 3.2 metres lets you watch the teeming ant hill from a
distance without missing even the smallest detail. The SPORTING 12x30 is at the forefront when
it comes to combining the highest possible resolution with the lowest possible weight while
delighting the user with exceptional true to detail imaging.
6
Discover nature with OPTOLYTH®
OPTOLYTH® SPORTING
The advantages at a glance:
Sliding eyecups for eyeglass wearers
Attractive rubber armouring
Waterproof
Lightweight design
Near focusing 2.4; 2.8; 3.2
Belt pouch
Model
8x24
BGA
10x28
BGA
12x30
BGA
Magnification
8x
10x
12x
Objective lens-Ø (mm)
24
28
30
Field of view (m)
110
88
75
Twilight factor
13,85
16,73
18,97
Weight (g)
220
245
270
Product number
FG - 13021
FG - 13031
FG - 13041
Discover nature with OPTOLYTH®
7
Compact design,
powerful performance
OPTOLYTH® MINI
retractable spotting scopes
Diversity full of life, unexpectedly close
Years of experience in designing and engineering spotting scopes pay off when developing a new concept for top quality
products. The MINIs hold a world class market position and unequivocally represent themselves as such. If you need absolute
certainty, binoculars soon reveal their limitations. The modern hunter is expected to do more than just make the shot. He
is an expert game keeper and acts responsibly for an ecologically sound future. The MINI spotting scopes are practically
indispensable for the duties of a modern hunter. The spotting scopes feature a short pull-out and a robust rubber armouring
that is at the same time sound absorbing, oil and acid resistant. High magnification combined with powerful low light
performance are only two of many characteristics that make these OPTOLYTH® spotting scopes superior. The low weight
of the lenses and the compact design let you carry the spotting scope easily, especially when frequent changes of location
are necessary. The Ceralin-plus-Multicoating enhance the transmission of our lenses. A “1/4” and a “3/8” tripod socket let you
connect tripods of any kind.
MINI 25x70 XS
A world novelty among spotting scopes – a retractable eyepiece.
A simple twist lets the eyepiece disappear quickly and easily into the housing of the spotting
scope, making it the smallest scope and offering superior protection. Despite the elaborate
and precise mechanism needed for this process handling is very easy. Two interlocking curves
ensure that the swivel can be used to extend the eyepiece as well as to focus the scope. The
overall length of just under 20 cm lets you stow the scope in almost any jacket pocket.
MINI 25x70 BGA/WW
At a length of 25 cm this is the second shortest but lightest scope in the MINI series. Ideally
suited for hunting in the mountains and tried and tested in extensive hunting territories. When it is
necessary to maintain an overview of the situation the 25x70 is a decisive help with its 50-metre field
of view.
MINI 30x80 BGA/WW-S
Despite the higher magnification the 30x80 has an even better low light performance than
the 25x70. In the mountains or on the plains large distances are easy to survey. An embedded
sun shield optimises visibility under backlight conditions and the 80 mm lens catches even the
weakest rays of light in the twilight.
MINI 15-45x80 GA
This is the MINI with the vario lens for all purposes. The variable zoom range yields
outstanding imaging results in the twilight at 15x magnification; at 45x magnification it
provides high-resolution images true to detail. The largest of the MINI spotting scopes provides
magnification ranges beyond those of binoculars and is therefore the ideal supplement to upgrade
your equipment. Flexibility is key here and the external mounting of the focusing wheel makes it easy
to operate this scope even in the wintertime wearing thick gloves.
8
Discover nature with OPTOLYTH®
OPTOLYTH® MINI spotting scope
The advantages at a glance:
Uncompromising edge-to-edge sharpness
Ceralin-plus-Multicoating
Small and manageable when collapsed
Wide angle eyepieces for eyeglass wearers
Continuously adjustable focusing starting at 5 m
Oil and acid resistant rubber armouring
Model
25x70
BGA/WW
25x70
XS
30x80
BGA/WW-S
15-45x80
GA
Magnification
25x
25x
30x
15 - 45 x
Objective lens-Ø (mm)
70
70
80
80
Field of view (m) / degree
50 / 2,9
50 / 2,9
40 / 2,3
43 / 2,3 - 26 / 1,5
Twilight factor
41,8
41,8
49
60
Length in (mm)
247 - 365
195 - 365
280 - 385
283 - 395
Weight (g)
1000
1150
1340
1470
Product number
SP - 16021
SP - 16061
SP - 16031
SP - 16051
Discover nature with OPTOLYTH®
9
Professional
top performances
OPTOLYTH® Fixed Scope
Flexible giants of light
They are indispensable to ornithologists, popular with
nature lovers and tested and tried by marksmen athletes.
Our scopes are useful in many fields of application such as ornithologists taking census of bird populations by counting bird
rings or in the field of sport, like for example for biathlons. A convenient selection of interchangeable eyepieces lets you
choose the one best suited to your purpose.
Like our other lines of products, our spotting scopes are 100% Made in Germany and their performance and proficiency places
them among the top notch products in this market. The TBS/TBG spotting scopes are waterproof, fog proof and feature a nonslip focusing wheel. A retractable sun shield facilitates observation during extreme backlight conditions. A robust, full rubber
armouring protects the lenses and helps minimise reflex. The scopes are equipped with a connecting ring for tripods which
allows you to rotate the scope 360 degrees. The scope can be locked in any position on the tripod by tightening the
knurled screw.
TBS 80 GA - TBS 80 GA/HDF
Sitting comfortably in a relaxed position the observer can enjoy high quality images thanks to the angled
eyepiece (TBS). Edge-to-edge sharpness can be achieved by using the smooth-running focusing
device. The TBS 80 GA/HDF is also available with HDF* lens elements.
TBG 80 GA - TBG 80 GA/HDF
This is an all-purpose fixed spotting scope that features a straight eyepiece. It is suitable for
beginners since it is easy to operate, however, it is also a big help for professionals in any given
situation. The TBG 80 GA/HDF is also available with HDF* lens elements.
TBS 100 APO/HDF - TBG 100 APO/HDF
This extraordinary spotting scopes features an apo-chromatically corrected lens with a diameter of 100
millimetres. It comes with standard fluorite lenses which allow for maximum light transmission even when
observing bright objects in nothing but moonlight. The quick focus ring expands the range of uses
considerably and improves viewing convenience. You can focus your target within seconds, no
matter if it is infinitely far away or close up at 6 metres distance. As OPTOLYTH®’s biggest and,
more importantly, brightest spotting scope, it is predestined for observing sites in extremely
poor lighting conditions.
* HDF = High Definition Fluorite Glasses
CaF2 crystals for the highest image resolution
This expensive optical material is used for all models in the HDF series in order to achieve exceptional refractive properties
with almost 100% color fastness, which is the non-plus-ultra for ornithological observation.
10
Discover nature with OPTOLYTH®
OPTOLYTH® fixed scopes
The advantages at a glance:
Argon filled and waterproof
Extremely high light transmission
Ceralin-plus-Multicoating
Suitable for us up to close-up range of 5 metres
Protected by oil and acid resistant rubber armouring
HDF versions available with fluorite lenses for highest image resolution and 100% colour rendition
Model
TBS 80
TBG 80
TBS 80
HDF
TBG 80
HDF
TBS 100
APO/HDF
TBG 100
APO/HDF
Objective lens-Ø (mm)
80
80
80
80
100
100
Range of focus (m)
∞-5
∞-5
∞-5
∞-5
∞-6
∞-6
Monocular
angled
straight
angled
straight
angled
straight
Length in (mm)
400
400
400
400
400
400
Weight (g)
1410
1400
1390
1385
2400
2350
Product number
SP - 17041
SP - 17061
SP - 17051
SP - 17071
SP - 19021
SP - 19031
Discover nature with OPTOLYTH®
11
Quality in
modern times
OPTOLYTH® Compact
Compact design for a wide-ranging viewing experience
OPTOLYTH®’s Compact series spotting scopes let you view nature from a distance or up close. Today’s smart observer has one
motto: Stay mobile! Nothing would be more hindering than a bulky, heavy spotting scope if one has to follow the “object of
one’s affection” through difficult territory. Once again our convenient selection of lenses offers you the right solution for every
observation need.
The Compact is fully equipped for any kind of observation with a close-up range of 2.8 metres, its modern design with rubber
armouring and a field of view of up to 54 metres. Excellent low light performance, superb edge-to-edge sharpness and
imaging supremely true to detail also play an important role here. The particularly short design facilitate use of this spotting
scope considerably.
Compact S 80 APO/HD
The angled eyepiece (S 80) relieves the neck, shoulders and head when observing and identifying animals
while sitting down. A retractable sun shield is standard with all models and prevents glaring through
unintentional exposure to light and allows for observation even in bright sunlight.
Compact G 80 APO/HD
Sometimes even the experienced, demanding hunter prefers the Compact over a
retractable spotting scope. The straight eyepiece (G 80) and a short design combined
with a waterproof housing and a zoom eyepiece puts the Compact at the same level as its
retractable counterpart. Variable magnification in the twilight ensures a perfect view.
* HDF = High Definition Fluorite Glasses
CaF2 crystals for highest possible image resolution
This expensive optical raw material is used for all models of the HDF series to achieve exceptional refractive properties at
nearly 100% colour rendition, making these lenses the ne plus ultra for ornithological observation.
12
Discover nature with OPTOLYTH®
OPTOLYTH® Compact
The advantages at a glance:
Extremely short design
Close-up range of 2.8 metres
Compact and manageable
Unsurpassed imaging capability
Argon filled and waterproof
Ceralin-plus-Multicoating
Protected by oil and acid resistant rubber armouring
Model
S 80 APO-HD
G 80 APO-HD
80
80
Range of focus (m)
∞ - 2,8
∞ - 2,8
Monocular
angled
straight
Length in (mm)
325
325
Weight (g)
1670
1670
SP - 18031
SP - 18051
Objective lens-Ø (mm)
Product number
Discover nature with OPTOLYTH®
13
Diversity leads
to success
OPTOLYTH® EYEPIECES
The right magnification for any distance
For any purpose, any eye, any magnification. The various interchangeable
eyepieces let you adapt your fixed scope to the job at hand. The eyepieces on
your fixed spotting scopes can be switched quickly and easily.
Eyepi­­­ece 20x WW
The 20xWW is highly suitable for counting birds on large expanses of water or to determine the size of an entire
flock. The computer calculated wide angle lens (WW) makes a field of view of 54 metres possible and gives you
the necessary overview for these tasks. For quick observations in between other tasks the scope can be used
without a tripod at a 20x magnification – it’s enough to simply rest the scope on any surface.
Eyepiece 30x WW
This eyepiece achieves the ideal compromise between magnification and twilight performance. It remains
indispensable for watching local bird varieties. It allows you to judge details such as the shape of a beak or
plumage which makes it an all-round scope. The wide angle WW lens provides for an extensive field of view of 38
metres as well.
Eyepiece 70x WW
Real professionals who need to be able to distinguish even the smallest detail sometimes choose this rather
exotic magnification. It requires, however, quite some experience in handling spotting scopes and tripods, an
indispensable tool when working with the 70xWW. This eyepiece frequently appeals to users in astronomy as
well, where it can be used to gain a quick overview. Please note that this eyepiece was specifically designed to fit
our 80 mm scopes.
Zoom-eyepiece 20-60x (80 mm) / 30-60x (100 mm)
The zoom eyepiece from OPTOLYTH® lets you handle each situation with the required flexibility.
The variable magnification of between 20x and 60x offers the user images that are superbly true to
detail at maximum resolution. No matter if your focus lies in gaining a quick overview or noticing
the smallest difference, this eyepiece easily adapts to your personal needs. The most popular among
OPTOLYTH®’s eyepieces renders diverging initial magnifications due to the differing focal lengths of
the 80 mm and 100 mm scopes.
14
Discover nature with OPTOLYTH®
OPTOLYTH® EYEPIECES
Camera attachment
With our camera attachment we offer an additional optical component. This
attachment turns your fixed spotting scope into a high quality telephoto lens with
focal lengths of 850 mm (at a lens Ø of 80 mm) or 1.200 mm (at a lens Ø of 100 mm).
Instead of the eyepiece the camera attachment is mounted onto the fixed
spotting scope and any digital or standard reflex camera can be installed
on the camera attachment using one of our T2 adapters. This opens
up entirely new possibilities with regard to photographing reclusive
animals or documenting the smallest details at a great distance.
Our interchangeable eyepieces at a glance:
Eyepiece
20x WW
30x WW
30 x WW
45 x WW
70x WW
20 - 60 x 80
30 - 60 x 100
Camera
adapter
Magnification with
Compact S/G 80
TBS/TBG 80
TBS/TBG 100 APO
20 x
20 x
30 x
30 x
30 x
45 x
70x
70x
---
20 - 60 x
20 - 60 x
---
----30 - 60 x
f= 850 mm
f= 850 mm
f= 1200 mm
Exit pupils-Ø (mm)
80 mm scope
100 mm scope
4,0
3,33
2,67
2,22
1,14
---
4,0 - 1,33
---
--3,33 - 1,67
-----
Twilight factor
80 mm scope
100 mm scope
40
54,77
48,99
67,08
74,80
---
40 - 69,28
--54,77 - 77,46
-----
Exit pupils distance (mm)
17
16,5
11
17
17
---
80 mm scope
Field of view (m/1000m)
Field of view (degree)
54
3,09
38
2,17
15
0,86
33- 20
1,90 - 1,14
-----
-----
100 mm scope
Field of view (m/1000m)
Field of view (degree)
36
2,06
27
1,54
-----
-----
23,5 - 17,5
1,34 - 1,01
-----
Shield/Focal length (mm)
80 mm scope
100 mm scope
-----
-----
-----
-----
-----
10,7 / 850
12,0 / 1200
Lens count
6
7
7
8
8
4
Weight (g)
165
190
210
210
210
260
OK - 20021
OK - 20031
OK - 20091
OK - 20041
OK - 20051
ZUB - 24049
Product number
Discover nature with OPTOLYTH®
15
Digiscoping
for the future
OPTOLYTH® DIGITAL ADAPTERS
Top quality images when photographing with the scope
Combine modern digital technology with the tried and reliable lenses from OPTOLYTH®. Expand OPTOLYTH® fixed or
retractable spotting scopes and turn them into high performance telephoto lenses with the digital adapters.
Digiscoping with OPTOLYTH® – experience nature up close and capture this moment perfectly in a photo. While developed for
digital compact cameras it is possible to take pictures with perfect contrast when using our digital adapter Digi-S with fixed
spotting scopes and the Digi-A with retractable spotting scopes.
Digital adapter Digi-S
This compact, lightweight digital adapter made from aluminium for the use with fixed scopes
can be used with almost any digital compact camera by simply screwing it onto the scope.
Exchanging eyepieces is still possible. Observation or photography – no problem – you decide
since both is possible without readjusting the camera thanks to the self-locking swivel adapter.
Should you want to use an older fixed scope model from OPTOLYTH® we
will gladly add an extension to your scope so you can easily fit the Digi-S
adapter.
Digital adapter Digi-A
The universal Digi-A adapter can be used with any newer model retractable spotting scope. With its
classy design it is an eye catcher for the alternative hunter in his local hunting territory. The unit of
spotting scope and digital adapter can be easily mounted to a tripod since it is equipped with an
additional connector. It is adaptable universally to accommodate a multitude of digital cameras
and is a suitable accessory for documenting red deer and wild boars. The
self-locking swivel ring has been tested and tried and is available for this
model as well.
16
Discover nature with OPTOLYTH®
OPTOLYTH® DIGITAL ADAPTERS
Digital adapter Digi-S for fixed spotting scopes
Product number: ZUB-24078
Advantages:
Low weight of only 450 g
Simple and functional construction
Sleek design
Simple mounting by screwing it to the scope
Exchange of eyepieces remains possible
Can be used with virtually any digital compact camera
Fits all OPTOLYTH® eyepieces
Sturdy metal engineering
Digital adapter Digi-A for retractable spotting scopes
Product number: ZUB-24079
Advantages:
Low weight of only 700 g
Long pull-out yet functional construction
Sleek design
Easy mounting between tripod and scope
Can be used with virtually any digital compact camera
Sturdy metal engineering
Astro-Adapter
The universe within reach! You can expand your OPTOLYTH® spotting scope using the Astro adapter with
conventional Astro lenses for optimum star gazing. You can also combine our zoom and wide angle lenses
using our adapter with astronomical refracting telescopes.
Discover nature with OPTOLYTH®
17
Safekeeping
on the road
OPTOLYTH®
Carrying cases and ready bags
These padded bags offer the necessary protection for your binoculars and scopes in wind and bad weather conditions. The
heavy duty, tear-resistant Cordura fabric is water-repellent and impervious to dust and ideally complements the line of high
quality products offered by OPTOLYTH®.
OPTOLYTH® Cordura bags
This sleek carrying case made from Cordura fabric offers the perfect protection for your OPTOLYTH®
equipment. These carrying cases for spotting scopes feature additional lens holders and a storage
compartment. These products also follow the motto “Made in Germany”. Niggeloh GmbH, a wellknown company located in Radevormwald, manufactures these water-repellent, heavy duty bags on
our account.
OPTOLYTH® stay on cases
Bags designed particularly for the OPTPLYTH® spotting scopes allow for the best protection
while also supporting user-friendly observation. By removing different caps you can
use your scope while inside the bag. Mounting the scope onto a tripod remains
possible as does focusing and magnifying. It must be emphasized that the
bag provides extra protection for retractable spotting scopes. The end of the
bag holding the lens was reinforced for this line of bags. Our ready bags are also
manufactured by Niggeloh GmbH.
Model
Product number
stay-on case 25x70
ZUB - 24021
stay-on case 25x70 XS
ZUB - 24027
stay-on case 15-45x80 / 30x80
ZUB - 24022
stay-on case TBS/G 80
ZUB - 24023
stay-on case TBS/G 100
ZUB - 24026
cordura case ViaNova 42
ZUB - 24083
cordura case ViaNova 56
ZUB - 24082
cordura-case ROYAL
ZUB - 24019
leather case SPORTING 8x24
ZUB - 24014
leather case SPORTING 10x28
ZUB - 24015
leather case SPORTING 12x30
ZUB - 24016
comfort - schoulder strap
ZUB - 24044
18
Discover nature with OPTOLYTH®
Technical terms connected with binoculars and spotting scopes
Argon
By filling binoculars with one of these noble gases you prevent
fogging of the inside optics when the outside temperature
changes.
Eyepieces for eyeglass wearers
Binoculars made for eyeglass wearers feature a large exit
pupil diameter. Eyeglass wearers con use the optimal field of
view by folding the eyecups either up or down.
Lenses
The lenses facing the object during observation. These
represent an important performance feature of binoculars.
The bigger the lens the brighter the image. In twilight optical
devices with large lenses are preferred.
Eyepieces
The lens system at the eye-space end of the scope featuring
various magnifications.
Roof prism
A set of prisms made from roof prisms allows for a particularly
sleek design. The optical and precision engineering effort is
higher than with a porro prism of equal quality.
Phase correction
A very elaborate coating on a roof prism. This coating reduces
light diffusion and is necessary for outstanding imaging
quality.
Dioptre compensation
The balancing of various eyesight values by adjusting the
eyepiece.
Porro prism
Binoculars with porro prisms are generally wider than
comparable roof prism models but they are not as long. Since
the lenses are further apart, porro prisms offer a somewhat
more three-dimensional image at shorter observation
distances. This kind of binoculars is also very popular because
of the excellent depth of focus.
Binocular quality
The performance of a set of binoculars is a combination of
magnification, lens diameter, image quality, size, weight,
stability, quality of engineering and quality of raw materials.
Therefore, every buyer should choose the right model
according to his needs – either one of the shorter and wider
porro prism models or one of the sleeker and longer roof
prism models. Since the quality of any pair of binoculars
is only apparent in poor lighting conditions, during long
periods of observation, in extreme temperatures and harsh
conditions, choosing a set of binoculars remains a matter of
trust between the manufacturer and the user.
Focusing
The focusing of the lenses onto the object that’s being
observed.
Geometric light intensity / twilight factor
While the geometric light intensity is a measuring unit
for the apparent brightness with which the object being
observed is seen in the scope, the twilight factor is a unit of
measurement for the details still discernible in the twilight.
These, however, are simply numerical values resulting from
the ratio of magnification to lens diameter. These values are
less important for practical use.
HDF models
All models with the HDF (High Definition Fluoride)
designation feature a glass that is especially difficult to
process. These lenses contain calcium and have a very high
refraction index. These lenses are used frequently when
colour rendition is important.
Internal Focusing
For internal focusing only lenses inside the binoculars are
moved to focus the object. These binoculars are generally
sealed tightly thus avoiding penetration of dust, air or
humidity.
Adjustment
The exact assembly of both halves of the glass is key for
relaxed observation with binoculars. It is important that
both are absolutely parallel otherwise image doubling or
blurred edges quickly emerge. Adjusting the lens centres it
precisely in the path of rays and both sides have the same
magnification.
Pupils (EP/AP)
The entrance pupil (EP) is the freely operant lens diameter
through which the image/light enters the binoculars. The exit
pupil (AP) is the diameter of the circle of light that exits the
eyepiece. The exit pupil relates to the entrance pupil based
on magnification.
Field of view
This value denotes the diameter of a section of an image
1,000 m away. Most users describe an large field of view as
pleasant because the “camera shake” has less influence on
the quality of the picture. Optical devices labelled WW (wide
angle) have a particularly large field of view.
Variable lenses
A variable telescope allows for continuous adjustment of
various magnifications.
Magnification
The magnification value of a lens is one of the most
important terms since magnification is directly connected
with the use of an optical device. The specified magnification
(e.g. 6x) denotes that the distance to the object is reduced
by that factor, i.e. an object at a distance of 60 m viewed
with a 6x magnification appears as close as viewed without
magnification at 10 m distance. However, it must be noted
that the larger the magnification the darker the object
appears.
Coating
Coating is a treatment in which lenses are coated with a
layer that reduces reflexion. This is necessary since otherwise
reflections occur on each glass-air-surface of the device
causing a loss of light of 4% per surface. Some modern
optical devices feature a large number of air-glass-surfaces.
This thin layer reduces the loss of light to 0.5% per glass-airsurface. High quality long range lenses come with a standard
multi layer coating.
Central focusing device
A central focusing device used for binoculars makes it possible
to focus both halves of the binoculars simultaneously. A
dioptre compensation can be achieved independently, even
if the user has different eyesight in his left and right eye.
Discover nature with OPTOLYTH®
19
The history of OPTOLYTH®
Founded in 1856 by J.E. Sill in Nuremberg. (Continued
operation by his daughter, Maria Roth, née Sill and her
family up to Walter Roth in 2004).
Production begins at the Schwabenmühle (Swabian Mill)
and is relocated to Riesenschritt 20 in 1860. In 1945 the
company relocates to Oed/Weigendorf. Production for
the Nuremberg toy industry commences. Simple Galileo
binoculars, kaleidoscopes and telescopes soon follows.
After 1945 the production of reading lenses and binoculars
is launched in Oed.
Starting in 1965 top quality prism binoculars and scopes
are produced under the name of OPTOLYTH® and sold
worldwide. With the manufacturing of ROYAL roof prism
binoculars and retractable spotting scopes the company
makes a name for itself and builds a large customer base.
In 2004 Optolyth Optics is bought by Sill Optics. Production
is relocated to Wendelstein near Nuremberg where the
range of products is still manufactured with the newest
machines.
In 2008 managing partner Berndt Zingrebe initiates the
merger of both companies, uniting them once again under
the original name Sill Optics.
In Wendelstein modern production facilities with the latest
CNC machines for the manufacturing of lenses are now
available, as well as prototype manufacturing and in-house
development.
Thus it is guaranteed that the name OPTOLYTH® continues
to stand for quality products “Made in Germany”.
Sill Optics GmbH & Co. KG
Johann-Höllfritsch-Str. 13
DE-90530 Wendelstein
Germany
Phone: +49 (0)9129/9023-20
Fax: +49 (0)9129/9023-23
service@optolyth.de
www.optolyth.de
www.silloptics.de
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising