Question about using Lens


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Galaa

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#1
I read from somewhere, that using TC lens will reduce the light coming in as the F stops are lowered(Me newbie so the words I use might not be correct).
Is that true? And is it only for TC lens or does all lens lower F stops?
 

#2
Originally posted by Galaa
I read from somewhere, that using TC lens will reduce the light coming in as the F stops are lowered(Me newbie so the words I use might not be correct).
Is that true? And is it only for TC lens or does all lens lower F stops?
The TC meant for SLR cameras will reduce 1 or 2 stops depending on its power (1.4x will reduce 1 stop, 2x will reduce by 2).

A properly made TC meant for digital cameras (those which attach in front of the lens) will not have any light reduction. At least the Nikon TC-E2 doesn't. :p In any case, you should not need to worry. Your camera will automatically take care of the exposure, no additional settings are required.

Same applies for wide convertors.

Regards
CK
 

Bluestrike

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Jan 17, 2002
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There lor~
bluestrike.clubsnap.org
#3
Yes, It is generally true.

Be it a TC, Marco or any lens, there will be some drop in the F-stop and that by how much will depend on the lens itself.
 

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