One aspect of lenses that doesn't get mentioned much with the D40 is an intriguing one: you can mount any Nikkor on it. That's right, any, as in pre-AI lenses can be put on this camera and used without damaging it. Of course you'll be metering and focusing manually, but it did suddenly make a handful of lenses in my mom's gear closet that date back to the mid-1960's suddenly usable again.