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Old Aug 22, 2008, 12:06 PM   #1
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Which is a better buy from these big zoom kits?
Should I get a kit at all? I dont like the D40's 6.1mp.

Sony A200k: 10mp, 300mm, $700.
http://www.jr.com/sony/pe/SON_DSLRA200W/

Nikon D40 kit: 6mp, 200mm, $650.
http://www.jr.com/nikon-d40-slr-digi...N_D40_SL_KIT3/

Olympus E-510 kit:
http://www.adorama.com/IOME510K2.html
10mp, $589. 150mm might not be enough, but it's
cheapest one (besides the E-410 which is $550). Just the body is $490.
The 300mm zoom lens for it goes for $330
http://www.adorama.com/IOM70300.html
That's still $120 more than the Sony A200 kit.

I am interested in a macro lens, but dont
see a need for bigger than 300mm.

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Old Aug 22, 2008, 12:31 PM   #2
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The Sony is 10MP and has sensor shiftimage stabilization. Among this group, ithas the best autofocus system for sports/action/wildlife shooting, and the largest selection of OEM, third party and used lenses. Your selection of lenses covers the 35mm equivalent of 27-450mm.

The Nikon is 6MP. Among this group, itprobably has the least capable autofocus system. Your selection of lenses covers the 35mm equivalent of 27-300mm.

The Olympus E-510 is 10MP and has sensor shiftimage stabilization. Among this group, itis the smallest and lightest, and for equivalent angles of view the lenses are the smallest and lightest as well. It's selection of lenses is the smallest in this group, and they are also some of the most expensive. It has 'Live View' but can not autofocus when using it. (The newer E-520 does not have this problem, btw.) Your selection of lenses covers the 35mm equivalent of 28-300mm. Adding the 300mm zoom would give it the the 35mm equivalent of 28-600mm.

The difference in the effect of the focal lengths on the different cameras is because of the size of the image sensor. The Sony and Nikon use an image sensor that is 23.7x15.6mm, while the Olympus uses an image sensor that is 17.3x13mm. A 35mm film exposure is 36x24mm, which is about 1.5 times larger than the image sensor in the Sony and Nikon, and 2 times larger than the one in the Olympus. A 35mm equivalent focal length for the Sony and Nikon would be 1.5x as long, and 2 times as long on an Olympus. So the 300m lens on the Sony has a 35mm equivalent focal length of 450mm, but on the Olympus it has a 35mm equivalent focal length of 600mm.

All these cameras are very good. What do you want to do with them?
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Old Aug 22, 2008, 8:46 PM   #3
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"Adding the 300mm zoom would give it the35mm equivalent of 28-600mm."

Now we are talking! 600mm is more than enough zoom for me.
Sensor size doesnt concern me as I dont print too often.






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Old Aug 23, 2008, 6:43 AM   #4
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romphotog wrote:
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Now we are talking! 600mm is more than enough zoom for me.
What kinds of photography do you want to do?
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