Rear of Camera Controls
The control layout at the rear of the D90 has had a bit of facelift. Most of this is merely cosmetic (the buttons down the left side of the LCD are now round and less recessed, making them easier to press, and the multi-controller is much better), but there are a couple of new buttons. Live view gets its own, as does info (which brings up the new info display panel). The OK button has migrated north to the center of the multicontroller and the lock switch is now a lever.
As before, three of the buttons running down the left side of the LCD monitor are dual-purpose, in shooting mode they allow you to set White balance, ISO sensitivity and Image Quality / Size, in Playback mode they provide other functions. Press and hold the erase and metering (top of camera) buttons, release and repeat to format the SD card.
Buttons (Shooting mode)
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WB | White balance mode![]() Auto Incandescent Fluorescent Direct sunlight Flash Cloudy Shade Color temperature (Kelvin) White balance preset (5 registers) |
White balance adjustment![]() - Fine tune -3 to +3 - Fine tune -3 to +3 - Fine tune -3 to +3 - Fine tune -3 to +3 - Fine tune -3 to +3 - Fine tune -3 to +3 - Fine tune -3 to +3 - Temperature 2500 K to 9900 K |
ISO | Select sensitivity
(ISO equiv.) |
![]() - In Auto / Vari-Program mode only |
QUAL | Image quality![]() RAW Fine JPEG Normal JPEG Basic JPEG RAW + Fine JPEG RAW + Normal JPEG RAW + Basic JPEG |
Image size (all except RAW quality) |
OK | • Select center focus point Can be set to Highlight active focus point or turned off via CSM f2. | |
Lv | • Activate/Exit Live View mode Can be set to Highlight active focus point or turned off via CSM f2. |
Single press buttons (Shooting mode)
Button | Description |
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AE-L AF-L |
Auto Exposure and Auto Focus Lock |
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Playback mode![]() Enters or exits from Playback mode, pressing this button displays the last image taken (or the last image on the card) in the last used display mode. |
MENU | Camera menu![]() Display or cancel the camera menu (detailed later in this review). |
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Help |
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4-way controller![]() In shooting mode where AF point selection is enabled the 4-way controller is used to choose AF points. In playback mode this control reverts to image navigation / menu movement. Note that this control can be locked to avoid accidentally changing AF area using the lock lever just below it (the lock lever has no effect on menu or playback functionality). |
OK | OK Button |
Lv | Live View Button![]() Activate/Exit Live View mode. |
info | Info Display![]() Displays the detailed shooting information display |
Single press buttons (Playback mode)
Button | Description |
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Delete![]() When an image is displayed pressing delete will display a "Delete?" prompt, press this button once more to delete the image. This is quicker and more straightforward than the D100 which required confirmation with a different button. |
MENU | Camera menu![]() Display or cancel the camera menu (detailed later in this review). |
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Protect ![]() Protects or un-protects the current image. This places a read-only flag on the image file and stops it from being accidentally deleted or deleted using a 'delete all images' option. It does not protect the image from a card format. |
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Zoom out / Thumbnail view |
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Zoom in |
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4-way controller![]() Press left or right to browse through images, up or down to change display mode (you can select which modes are used via the Playback Menu). |
OK | Retouching menu ![]() Pressing the OK button in Playback mode displays a pop-up version of the retouching menu. |
Front of camera controls
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On the left side of the camera front are two unlabelled buttons, the bottom is depth of field preview, press and hold this button to stop the lens down to the selected aperture. The top button is the customizable 'FUNC' button, the exact function of this button can be set via CSM f3, including usefully a NEF+JPEG toggle. On the right side of the camera we have the flash button, bracket mode and just below the lens release, the focus mode lever.
Buttons (combined with a command dial)
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Flash mode![]() In P, A, S or M modes: Flash on (normal sync) Red-eye reduction Red-eye reduction with slow sync Slow sync Rear-curtain sync ![]() In Auto / Vari-Program mode: Auto flash Auto with red-eye reduction Flash off |
Flash exposure compensation![]() -3.0 EV to +1.0 EV 0.3 or 0.5 EV steps (CSM b1) |
BKT | Auto Bracketing number shots![]() +3F (+2x, +x, 0) 0F (Off) -2F (-x, 0) +2F (+x, 0) ![]() (Where x = bracketing increment) |
Auto Bracketing EV increment![]() 0.3 - 2.0 EV |
Auto Bracketing WB increment![]() 1 - 3 |
Focus mode
AF | Auto Focus ![]() Auto focus mode, you can select between AF-A (Automatic selection), AF-S (Single-servo) or AF-C (Continuous-servo) via the AF button on the top of the camera. |
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M | Manual
Focus ![]() Focusing is carried out using the focus ring on the lens, the focus indicator on the viewfinder status bar will indicate 'o' when the manually focused subject distance matches that calculated by the camera's AF system. |
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