No photo taken when remote control shutter-release button is pressed:

Replace battery in remote control (0 167).

Choose remote control mode (0 53, 55).

Flash is charging (0 29).

Time selected for Remote on duration has passed: reselect remote control mode (0 131).

Bright light is interfering with remote.

Smudges appear in photographs: Clean front and rear lens elements. If problem persists, perform image sensor cleaning (0 170).

Date is not imprinted on photos: Image quality set to NEF (RAW) or NEF+JPEG basic (0 51, 136).

Menu item can not be selected: Some options are not available in all modes.

Shooting (P, S, A, M)

Shutter-release disabled:

Non-CPU lens is attached: rotate camera mode dial to M (0 159).

Mode dial rotated to S after shutter speed of “bulb” or “time” selected in mode M: choose new shutter speed (0 69).

Full range of shutter speeds not available: Flash in use (0 60).

Colors are unnatural:

Adjust white balance to match light source (0 80).

Adjust Set Picture Control settings (0 87).

Can not measure white balance: Subject is too dark or too bright (0 84).

Image can not be selected as source for preset white balance: Image was not created with D3000 (0 86).

Effects of Picture Control differ from image to image: A (auto) is selected for sharpening, contrast, or saturation. For consistent results over a series of photos, choose another setting (0 89).

Can not adjust contrast for selected Picture Control: Active D-Lighting is on. Turn Active D-Lighting off before adjusting contrast (0 64).

Metering can not be changed: Autoexposure lock is in effect (0 75).

Exposure compensation can not be used: Choose mode P, S, or A (0 76).

Only one shot taken each time shutter-release button is pressed in continuous shooting mode: Lower built-in flash (0 54).

Reddish areas appear in photos or textures are uneven: Reddish areas and uneven textures may appear in long time-exposures. Turn noise reduction on when shooting at shutter speeds of “bulb” or “time” (0 122).

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