Sony Alpha DSLR-A580 Instruction manual

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Sony Alpha DSLR-A580 Instruction manual | Manualzz

Adjusting the brightness of the image

(Exposure, Flash compensation,

Metering)

Shooting with fixed brightness (AE Lock)

When shooting into the sun or by a window, the exposure may not be appropriate for the subject because of the big difference in lighting between the subject and the background. In such cases, use the light meter where the subject is bright enough and lock the exposure before shooting. To reduce the brightness of the subject, point the camera forwards a spot that is brighter than the subject and use the light meter to lock the exposure of the entire image. To make the subject brighter, point the camera forwards a spot that is darker than the subject and use the light meter to lock the exposure of the entire image.

This section describes how to shoot a brighter image of the subject using

The spot where you lock the exposure.

1

Fn button t

2

Adjust the focus on the portion you want to lock the exposure.

The exposure is set when the focus is achieved.

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3

Press the AEL button to lock the exposure.

(AE lock mark) appears.

AEL button

4

While pressing the AEL button, focus on the subject, and shoot the subject.

• If you continue to shoot with the same exposure value, press and hold the

AEL button after the shooting. The setting is canceled when the button is released.

Note

• In focus check Live View mode (page 91), set [Func. of AEL button] to [AEL] in the

Custom menu.

Using brightness compensation for the entire image

(Exposure compensation)

Except for exposure mode M, the exposure is automatically selected

(Automatic exposure).

Based on the exposure acquired by the automatic exposure, you can perform exposure compensation by shifting the exposure to either the + side or the – side, depending on your preference. You can make the entire image brighter by shifting to the + side. The entire image becomes darker when you shift it to the – side.

Adjust in the – direction

Base exposure Adjust in the + direction

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1

Press the button.

• The exposure compensation screen is displayed in the viewfinder mode.

button

2

Adjust the exposure with the control dial.

Toward + (over): Brightens an image.

Toward – (under): Darkens an image.

Standard exposure

3

Adjust the focus and shoot the subject.

Shooting techniques

• Adjust the compensation level by checking the recorded image.

• Using bracket shooting, you can shoot multiple images with the exposure

shifted to the plus or minus sides (page 120).

Note

• This item cannot be set when the exposure mode is set to AUTO or Scene Selection.

To shoot while checking the screen using the histogram

The histogram displays the luminance distribution that shows how many pixels of a particular brightness exist in the picture.

Dark Light

• Instead of the Graphic Display, the histogram is displayed after you press

the DISP button several times (page 42).

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The exposure compensation will change the histogram accordingly. The right illustration is an example.

Shooting with the exposure compensation on the positive side brightens the whole picture, making the entire histogram shift to the bright side

(right side). If the exposure compensation is applied on the negative side, the histogram will shift to the other side.

Both ends of the histogram show a highkey or low-key portion. It is impossible to restore these area with a computer later.

Adjust the exposure if necessary and shoot again.

Notes

• The histogram displayed in Live View mode does not indicate the final recorded image. It indicates the condition of the image just monitored on the screen. The histogram will differ based on aperture setting, etc.

• The histogram differs between shooting and playback in the following situations:

– When firing the flash.

– When the subject has low intensity, such as night scenery.

Adjusting the amount of flash light (Flash Compensation)

When shooting with the flash, you can adjust the amount of flash light alone, without changing the exposure compensation. You can only change the exposure of a main subject which is within the flash range.

Fn button t (Flash Compensation) t Select the desired

setting

Toward +: Makes the flash level higher.

Toward –: Makes the flash level lower.

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Notes

• This item cannot be set when the exposure mode is set to AUTO, Sweep Shooting, or Scene Selection.

• If you have adjusted the flash level, appears in the viewfinder when the built-in flash is pulled up. When you adjust it, be careful not to forget to reset the value.

• The higher flash effect may not be visible due to the limited amount of flash light, if the subject is outside the maximum range of the flash. If the subject is very close, the lower flash effect may not be visible.

Exposure compensation and flash compensation

Exposure compensation changes the shutter speed, aperture, and ISO sensitivity (when

[AUTO] is selected) to perform the compensation.

Flash compensation only changes the amount of flash light.

Selecting the flash control mode to set the amount of flash light (Flash control)

setting

ADI flash

Pre-flash TTL

This method controls the lighting of the flash, factoring in the focus distance information and light metering data from the pre-flash. This method enables an accurate flash compensation with virtually no effect from the reflection off the subject.

This method controls the amount of flash light depending on the data only from pre-flash light metering. This method is susceptible to the reflection off the subject.

ADI: Advanced Distance Integration

TTL: Through the lens

• When [ADI flash] is selected, using a lens that is provided with a distance encoder feature can perform more accurate flash compensation by using more accurate distance information.

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Notes

• When the distance between the subject and the external flash (sold separately) cannot be determined (wireless flash shooting using an external flash (sold separately), shooting with an off-camera flash using a cable, shooting with a macro twin flash, etc.), the camera automatically selects Pre-flash TTL mode.

• Select [Pre-flash TTL] in the following cases, as the camera cannot perform flash compensations with ADI flash.

– A wide panel is attached to the HVL-F36AM flash.

– A diffuser is used for flash shooting.

– A filter with an exposure factor, such as an ND filter, is used.

– A close-up lens is used.

• ADI flash is only available in combination with a lens that is provided with a distance encoder. To determine if the lens is equipped with a distance encoder, refer to the operating instructions supplied with the lens.

Selecting the method for measuring the brightness of a subject (Metering Mode)

(Multi segment)

This mode measures light on each area after dividing the total area into multiple areas and determines the proper exposure of the entire screen.

(Center weighted) While emphasizing the central area of the screen, this mode measures the average brightness of the entire screen.

(Spot)

This mode measures light only in the spot metering circle located in the center area.

Shooting techniques

• Use [Multi segment] metering for general shooting.

• When there is a high contrast subject in the AF area, measure the light of the subject you want to shoot with the optimal exposure using the spot

metering function and take advantage of an AE lock shooting (page 102).

Note

• When the exposure mode is set to AUTO or Scene Selection, [Metering Mode] is fixed to [Multi segment] and you cannot select other modes.

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