cfibanez Senior Member  859 posts Likes: 2 Joined Aug 2008 Location: Stockholm, Sweden More info | Jun 17, 2009 07:08 | #1 Anyone knows whether there are significant IQ differences between the Kenko, Tamron and Canon 1.4X teleconverters? I know there are differences in the range of lenses that they can be paired with, but here I am more concerned about the IQ of the images produced with them, all else being equal. Thanks in advance! 5D4 | 7D2 | 11-24/4.0 L | 16-35/2.8 L III | 24/1.4 L II | 24-105/4.0 L IS | 40/2.8 STM | 85/1.2 L II | 100/2.8 L macro IS | 70-200/2.8 L IS II | 100-400 L IS II | 400/4.0 DO L II | 580EXII | EF 1.4x III | Gitzo monopod GM2541 | Gitzo tripod GT2541 | Really Right Stuff ball head & plates | B+W & Singh-Ray filters
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gasrocks Cream of the Crop  13,432 posts Likes: 2 Joined Mar 2005 Location: Portage, Wisconsin USA More info | Jun 17, 2009 08:23 | #2 Did you see the TC sticky thread at the top of this page? If you compare the Kenko Pro, Tamron SP, Sigma DG and Canon TCs, you will find very little difference in IQ. Big difference in price and what lenses they fit though. GEAR LIST
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cfibanez THREAD STARTER Senior Member 859 posts Likes: 2 Joined Aug 2008 Location: Stockholm, Sweden More info | Jun 17, 2009 08:51 | #3 gasrocks wrote in post #8125598  Did you see the TC sticky thread at the top of this page? If you compare the Kenko Pro, Tamron SP, Sigma DG and Canon TCs, you will find very little difference in IQ. Big difference in price and what lenses they fit though. Thanks. I did see the Tamron/Canon comparison using the 300mm in the sticky. I would be interested to know if someone has made a similar comparison with the Kenko. 5D4 | 7D2 | 11-24/4.0 L | 16-35/2.8 L III | 24/1.4 L II | 24-105/4.0 L IS | 40/2.8 STM | 85/1.2 L II | 100/2.8 L macro IS | 70-200/2.8 L IS II | 100-400 L IS II | 400/4.0 DO L II | 580EXII | EF 1.4x III | Gitzo monopod GM2541 | Gitzo tripod GT2541 | Really Right Stuff ball head & plates | B+W & Singh-Ray filters
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Wilt Reader's Digest Condensed version of War and Peace [POTN Vol 1]  More info | Jun 17, 2009 09:21 | #4 I did a comparison of the Canon 1.4-II and the Kenko Pro DG 1.4, with a Canon 70-200 f/4L on a 20D a long time ago. I shot a test pattern that I had fabricated using symbol fonts built into Microsoft Word, at various text sizes (example)...  The outcome was that the Canon 1.4x was a tiny bit better in the Center of frame, the Kenko was a tiny bit better at the edges of frame. You need to give me OK to edit your image and repost! Keep POTN alive and well with member support https://photography-on-the.net/forum/donate.php
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cfibanez THREAD STARTER Senior Member 859 posts Likes: 2 Joined Aug 2008 Location: Stockholm, Sweden More info | Jun 17, 2009 12:47 | #5 Wilt wrote in post #8125894 I did a comparison of the Canon 1.4-II and the Kenko Pro DG 1.4, with a Canon 70-200 f/4L on a 20D a long time ago. I shot a test pattern that I had fabricated using symbol fonts built into Microsoft Word, at various text sizes (example)... The outcome was that the Canon 1.4x was a tiny bit better in the Center of frame, the Kenko was a tiny bit better at the edges of frame. Cheers! Thanks a lot for this. 5D4 | 7D2 | 11-24/4.0 L | 16-35/2.8 L III | 24/1.4 L II | 24-105/4.0 L IS | 40/2.8 STM | 85/1.2 L II | 100/2.8 L macro IS | 70-200/2.8 L IS II | 100-400 L IS II | 400/4.0 DO L II | 580EXII | EF 1.4x III | Gitzo monopod GM2541 | Gitzo tripod GT2541 | Really Right Stuff ball head & plates | B+W & Singh-Ray filters
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