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To daddo: teleconverter	SteveH	::	2008-06-11 17:28
Hi Klaudio, can't say that I have noticed loss of detail. The negatives for me are the loss of, in the case of the one I use, 1 f-stop and that it slows the autofocus quite a bit. The 7Ds AF is never particularly good (not sure about the 5D - but compared to the 7 film body, the 7D is abysmal), but with a heavy lens and the teleconverter it hunts quite a lot which can be a problem if the subject is flying... If the lens was not bright it would probably be worse. I suspect that the quality of the lens you use it with has an impact too, ie it will magnify any problems with the lens. I bought mine 2nd hand, it is a sigma TC that can only be used with the 70-200 constant 2.8 zoom that I have, which is strange and annoying. cheers, Steve			AustraliaAustralia Pelican in flight SteveH (3923)
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Thread	Username		Date
To daddo: teleconverter	SteveH (3923)	::	2008-06-11 17:28