About shutter speeds. Konica-Minolta DYNAM40, MAXXUM 50, DYNAX40M, DYNAX 30, 50, DYNAX 40
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ABOUT SHUTTER SPEEDS
The shutter speed used for each exposure is displayed on the data panel. The following notation is used:
The reciprocal is used for shutter speeds from
1/2000 second to 1/3 second. 125 is 1/125 second.
For shutter speeds of a half a second or longer, a quote mark is used to denote whole seconds. 1”5 is one and a half seconds and 15” is fifteen seconds.
WHAT IS AN ƒ-NUMBER?
An f-number indicates the relative aperture of the lens and lets us determine how much light it lets through. But why does the number get bigger when the amount of light decreases? The answer is in the way it is written, f/4.0, f/8.0. etc. That means the focal length of the lens (f) divide by 4 or 8. So a 100mm lens at f/4 has a 25mm effective aperture (100/4) and at f/8, a 12.5mm effective aperture
(100/8). The f-number indicates the size of the aperture as a fraction of the focal length of the lens.
The f-number series was carefully chosen to make controlling exposures easy. In the chart, the aperture and shutter speed combinations give the exact same exposure.
Notice how the shutter speed changes to compensate for the change in aperture. f/2.8
f/4.0
f/5.6
f/8.0
f/11 f/16 f/22 f/32
1/2000s
1/1000s
1/500s
1/250s
1/125s
1/60s
1/30s
1/15s
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Table of contents
- 8 Names of parts
- 10 Data panel
- 11 Viewfinder
- 12 Getting started
- 12 Attaching the strap
- 13 Attaching a lens
- 13 Removing a lens
- 14 Installing batteries
- 15 Battery condition indicator
- 16 Loading film
- 17 Diopter adjustment
- 18 Setting the date and time - Date model
- 19 Changing batteries - Date model
- 20 Basic operation
- 20 Turning on the camera
- 20 Handling the camera
- 21 Taking a picture
- 22 Focus signals
- 22 Special focusing situations
- 23 Focus lock
- 24 Flash modes
- 25 Flash signals
- 25 Flash range
- 26 Subject programs
- 28 Film rewind
- 29 Manual rewind
- 30 A short guide to photography
- 31 What is a stop? What is an Ev?
- 32 Advanced operation
- 32 Drive modes
- 33 Self-timer notes
- 33 Continuous-advance notes
- 34 Remote control notes
- 35 Attaching the eyepiece cap
- 35 Optional viewfinder accessories
- 36 Function dial
- 37 About full-auto program
- 37 Exposure warning - Program
- 38 Exposure modes
- 39 Aperture priority - A
- 40 Shutter priority - S
- 41 About shutter speeds
- 41 What is an f-number?
- 42 Exposure compensation
- 44 Manual exposure - M
- 45 Bulb exposures
- 46 Focus area selection
- 47 Focus modes
- 48 Exposure bracketing / Multiple exposures
- 49 Bracketing notes
- 50 Multiple exposure notes
- 51 Manual ISO
- 52 Date imprinting - Date model
- 53 AF illuminator
- 53 Shutter lock
- 54 Accessory notes
- 54 Lens notes
- 56 Accessory flash notes
- 56 Wireless Controller IR-1N
- 57 About flash metering
- 58 Troubleshooting
- 60 Care and storage
- 60 Operating conditions
- 60 Storage
- 61 Cleaning
- 61 Before important events
- 61 Questions and service
- 62 Technical specifications