Danny From Poland, joined Apr 2002, 3482 posts, RR: 2 Posted (8 years 5 months 3 weeks 3 days 2 hours ago) and read 1386 times:
Does anyone use this converter with sigma 70-200 and Rebel? Could you share your opinion? I've heard that there may be some problems. The question is to buy or not to buy.
Aviopic From Netherlands, joined Mar 2004, 2681 posts, RR: 46 Reply 4, posted (8 years 5 months 3 weeks 2 days 13 hours ago) and read 1277 times:
1.4 works fine on the 70-200 2.0 is crap though very soft at the longer reaches so beware.
They both work fine Daniel, even stacked on top of each other.
Don't know where Paul's statement is coming from but it might because he is using Nikon and i have seen earlier topics where Nikon users were not happy with the Sigma combo.
On your Canon though it is absolutely no problem at all although i would not try a Canon 70-200 on a Sigma tc and v.v.
Here are some examples for which i used a Sigma 70-200/2.8 EX(hsm) combined with a 2.0 tc.
Clickhappy From United States of America, joined Sep 2001, 9444 posts, RR: 72 Reply 5, posted (8 years 5 months 3 weeks 2 days 10 hours ago) and read 1258 times:
AIRLINERS.NET CREW PHOTO SCREENER
Willem, those are great examples of the 2.0 and the 70-200 EX.
You def. want to stop it down a bit, the 2.0 gets a little soft wide open (5.6)
Aviopic From Netherlands, joined Mar 2004, 2681 posts, RR: 46 Reply 6, posted (8 years 5 months 3 weeks 2 days 10 hours ago) and read 1253 times:
Yes that's true HappyClick , a wide open lens will always be a tad softer then a stopped down one.
Far from unworkable though.
This example is wide open and maximum range.
Data: 400mm, 1/1000s, F5.6
Watch the girl in the back smiling at me, never understood why this was rejected
Sleekjet From United States of America, joined Jul 2001, 2045 posts, RR: 24 Reply 7, posted (8 years 5 months 3 weeks 2 days 6 hours ago) and read 1239 times:
I've had no problem plugging in a Sigma 1.4x between my 300D and 70-200 f/4 L. Here's an example: (please, no cheap hits)
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From Poland, joined Apr 2002, 3482 posts, 
From United Kingdom, joined Aug 2002, 616 posts, 
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From Netherlands, joined Mar 2004, 2681 posts, 
From United States of America, joined Sep 2001, 9444 posts, 
, a wide open lens will always be a tad softer then a stopped down one.
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