Teleconverter for 600D with Sigma 70-200mm f2.8 EX DG OS HSM?
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08-02-2013 10:14 AM
Thanks,
Cg.
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08-02-2013 04:37 PM
This is the best info I know of.
http://photography-on-the.net/forum/showthread.php?t=41922
Adding a 2X to an f2.8 lens will still allow Af on most bodies because you're now an f5.6 lens. It may degrade the image a bit depending on the specific TC so do your homework before shopping.
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08-06-2013 10:32 AM
Anytime you add anything into the light path of any lens, you are going to degrade the image quality. Now, that may be a slight or it can be a significant loss.
I have always subscribed to using the original manufacturers accessories and in this case I still think so.
Sigma makes two tele converters that will work with your lens. Both are designed for your lens and retain all features including AF.
The Sigma 70-200mm f2.8 EX DG OS HSM is of such high quality it has room to give up a small amount of IQ, introduced by the tele converter, and still be better that some 70-200mm without one.
Another consideration is how big do you intend to make the prints? Do you use a tripod?
So you must weigh all the factors of IQ and cost plus slower AF, etc, and decide if it is for you.
I recommend the 1.4x over the 2x, though.
EOS 1D, EOS 1D MK IIn, EOS 1D MK III, EOS 1Ds MK III, EOS 1D MK IV and EOS 1DX and many lenses.
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08-07-2013 12:59 AM
@ ebiggs1. Thank you also for your insight. From the information I have researched so far, I was leaning towards the sigma 1.4.
I'm not buying for a while, so I have plenty of time to learn more.