Why do reddish areas appear in photos from my Nikon D40?
If reddish areas appear in photos taken with your Nikon Digital Camera, especially in long time-exposures, turn noise reduction on when shooting at shutter speeds of “bulb” or “--”.
How to fix initialization error on Nikon Digital Camera?
If your Nikon Digital Camera displays an initialization error, turn the camera off, remove and reinsert the battery, and then turn the camera on again.
Why is the subject too bright in my Nikon D40 Digital Camera photos?
If the subject in your Nikon Digital Camera photos appears too bright, try these solutions: choose a lower ISO sensitivity, increase the shutter speed, select a smaller aperture (larger f/-number), or use an optional Neutral Density (ND) filter.
Why is the subject too dark in my Nikon D40 Digital Camera photos?
If the subject in your Nikon Digital Camera photos is too dark, consider the following: select a higher ISO sensitivity, decrease the shutter speed, or choose a larger aperture (smaller f/-number).
What to do if Nikon D40 Digital Camera says this card is not formatted?
If your Nikon Digital Camera displays the message 'This card is not formatted', you should format the memory card.
Why do randomly-spaced bright pixels (“noise”) appear in photographs from my Nikon Digital Camera?
To address randomly-spaced bright pixels (“noise”) appearing in photographs taken with your Nikon Digital Camera, try lowering the ISO sensitivity or using noise reduction. If the shutter speed is slower than 1s, also use noise reduction.
Why doesn't focus lock when shutter-release button is pressed halfway on my Nikon D40?
If the focus does not lock when the shutter-release button is pressed halfway on your Nikon Digital Camera, use the AE-L/AF-L button to lock focus in AF-C autofocus mode or when photographing moving subjects in AF-A mode.
Why is only one shot taken each time shutter-release button is pressed in continuous shooting mode on my Nikon Digital Camera?
If only one shot is taken each time the shutter-release button is pressed in continuous shooting mode on your Nikon Digital Camera, it is because continuous shooting is not available when the flash is raised.
Why do the displays turn off without warning on my Nikon D40?
If your Nikon Digital Camera displays turn off without warning, you can adjust the auto off delay setting to a longer duration.
Why doesn't the AF-assist illuminator light on my Nikon D40?
If the AF-assist illuminator does not light on your Nikon Digital Camera, ensure the mode dial is not rotated to or . Select another mode. Note that the AF-assist lamp does not light for manual focus or continuous-servo autofocus. Choose AF-S, and ensure 'On' is selected for Custom Setting 9 (AF-assist). Also, be aware that the illuminator may have turned off automatically.
General| Sensor Resolution | 6.1 megapixels |
|---|---|
| Sensor Type | CCD |
| Autofocus Points | 3 |
| Screen Size | 2.5 inches |
| Continuous Shooting Speed | 2.5 fps |
| Weight | 475 g (1.05 lb) |
| Effective Pixels | 6.1 million |
| Image Sensor | 23.7 x 15.6 mm CCD |
| Lens Mount | Nikon F mount |
| Image Processor | Nikon EXPEED |
| Shutter Speed | 30 - 1/4000 sec |
| Storage | SD card |
| Battery | EN-EL9 lithium-ion battery |
| ISO Sensitivity | 200-1600 (expandable to 3200) |
| Viewfinder Type | Optical pentamirror |
| Dimensions | 126 x 94 x 64 mm (4.96 x 3.7 x 2.52 in) |
Essential safety precautions for operating the Nikon D40 camera.
Explanation of icons and notations used throughout the manual.
Covers attaching lenses, battery, memory cards, and basic camera setup.
Overview of the Mode Dial and the available shooting modes.
Guide to taking photos using the automatic AUTO mode.
Explains the seven specialized scene modes for creative shooting.
Explanation of focus modes, exposure settings, and compensation.
How to set white balance and use the built-in flash and flash compensation.
How to view, zoom, protect, and delete photos on the camera.
Steps for transferring, printing, and viewing photos on computers, printers, and TVs.
How to navigate menus and personalize camera settings for individual preferences.
Overview of settings available in the shooting and setup menus.
Guide to diagnosing and resolving issues with the camera.
Technical details, specifications, and appendix information for the D40.
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