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Old Apr 12, 2009, 10:35 PM   #1
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I have an analogic SLR Nikon N50 with two lenses: an AF NIKKOR 35-80mm and a SIGMA 70-300mm DL Macro Super. Now I want to buy a digital SLR. I like the Nikon D90, but I'd like to know if I can use both lenses with the D90.
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Old Apr 13, 2009, 1:24 AM   #2
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You need to post this in the DSLR forum!
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Old Apr 13, 2009, 7:28 AM   #3
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I've moved the thread down to our Nikon dSLR Forum.


Chances are, they will both work. From time to time, you see some compatibility issues with older Sigma AF lenses (as they tend to reverse engineer the lens mount protocol, and sometimes miss something that's implemented in newer cameras). Try it to find out (it will probably work).

Lens quality may leave a bit to be desired with some older lenses like that (they are budget grade lenses).

Also, any lens you use on a dSLR with an APS-C size sensor (like the D90) will appear to be about 50% longer (more apparent magnification compared to using the same focal length lens on a 35mm camera, because the dSLR's sensor is smaller). For example, when used on a D90, your 35-80mm lens would give you roughly the same angle of view you'd have using a 53-120mm lens on a 35mm camera). That's why most of the kit lenses start out at around 18mm now (because they'll appear to be longer on a dSLR with an APS-C size sensor). Simply multiply the focal length by 1.5x to see how angle of view would compare. For example, an 18-55mm lens on a D90 would give you approximately the same angle of view you'd have using a 27-83mm lens on a 35mm camera.

So, I'd suggest getting a lens starting out wider than 35mm with a D90 for better usability. Sometimes, you can only back up so far to get what you want into the frame. ;-)

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