Nikon D40 review: Nikon D40

Click here for more on the D40's design and photo quality.

In most respects, the D40 provides the features of a typical budget dSLR. Its 6-megapixel resolution is on the low side for a camera introduced this year, but my test photos stood up to 13x19 prints and could probably have been pushed a bit larger. However, there were times when I think a higher-resolution sensor might have been able to resolve details a bit better--details such as a cat's fur, for example. The camera supports sensitivity levels from ISO 200 to ISO 1,600, plus a HI 1 level which equals about ISO 3,200. The lens's slowish f/3.5-to-f/5.6 aperture narrows your exposure options, however. Other shooting options include three autofocus types (single point, dynamic area, and closest subject) and methods (continuous, single shot, and predictive), shutter speeds from 3 to 1/4,000 second as well as bulb, flash, and exposure compensation in 1/3-stop increments, and three metering modes (spot, center-weighted, and matrix). If you plan on shooting raw, make sure to budget $150 for Nikon's Capture NX software; the bundled Picture Project software is insufficient.

Shutter lag and autofocus speed pop up as the D40's biggest weaknesses. It wakes up fast--0.3 second and you're good to go. But its shutter lag in good light is an almost embarrassing (for a dSLR) 0.7 second, and it more than doubles in dim light to 1.6 seconds. I frequently missed shots because of it. The autofocus system works fine for small changes--the subject taking a step, or refocusing on something nearby--but when switching from a far subject to a near subject or vice versa, it takes a perceptibly long second or two to lock.

However, raw and JPEG shot-to-shot time is an excellent 0.6 second (lower than the shutter lag because the camera doesn't need to focus a second time), as is the flash time, which only adds 0.3 second. In continuous-shooting mode, the D40 outshines the rest of its class with 2.5fps; the Canon EOS Rebel XTi is a mite faster, but the D40 can keep it up for far more frames.

If you're just looking for a great, cheap dSLR, the faster, higher-resolution Canon EOS Rebel XT is probably a better bet; and if you're an experienced shooter, you might want to spend more for the Nikon D80. But if you've got a budding photographer in the family or want to step up to your first dSLR, the Nikon D40 is a great choice.

Shooting speed
(Shorter bars indicate better performance)
Raw shot-to-shot time  
Time to first shot  
Shutter lag (dim light)  
Shutter lag (typical)  
Canon EOS Digital Rebel XT
Nikon D50
Canon EOS Digital Rebel XTi
Nikon D40

Continuous shooting speed in frames per second
(Longer bars indicate better performance)
Typical continuous-shooting speed  

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