so another words just keep what i have unless i want to use
screwdriver lens is the d40 as good as the d200 body? isnt the d200
af faster mfps ?ty mike
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http://www.flickr.com/photos/tloon1/ D40 18-55 70-300vr
Mike, the pictures on you flickr site are quite nice, well done!
The biggest difference in picture quality are lenses. Autofocus is
the same story; autofocus speed relies largely on how much light the
AF sensors are getting (compare focussing in the dark to focussing in
bright sunlight. What is faster?). A fast f/2.8 lens on a D40 will
focus quicker than a slow f/5.6 lens on a D200 in that respect.
Consider getting good "limited" glass. For instance the Sigma
18-50/2.8 HSM lens will focus (quick) on a D40, has good sharpness,
is a fast (2.8) zoom and well within your budget.
Instead of getting that 50-500 lens, consider getting the 70-200VR or
even the 80-400VR instead. Those are very sharp lenses. Especially
the 70-200 is very fast. Any 10x zoom lens is stretching its
performance envelope in many ways; moderate 3x or 4x zooms will be
faster, sharper, and with less distortion.
For FPS the D200 will indeed be quicker. It also allows you to change
virtually all settings directly, as opposed to the D40 where
virtually everything goes by menus. But the quality of your images
will not improve when you're using the same lenses.
If you enjoy tinkering with the settings while shooting - bracketing,
vary exposures in different ways, if you want to do a lot of shooting
in manual mode (think studio-like setups), then by all means get a
D200. It is a great camera and a joy to hold and you'll have a lot of
fun using it (then again, the D40 is a lot of fun too).
If your primary concern right now is image quality (although your
flickr images look fine to me) then better glass will give you the
most bang for your buck - but go for fast glass with "modest"
specifications, not high-ratio ultra long focal length zooms.
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Cheers,
Bart