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Drew_Persson Offline Buy and Sell: On p.1 #1 · Best TC for Sigma 120-300 f/2.8 ? Anyone experiment with various teleconverters on the Sigma 120-300 (EOS mount)? I had the new 1.4x and 2x Kenko 300 Pro DG TC's a while back and they were pretty nice, but I sold them after not using them for awhile. Now I have the TC itch again... Of course Sigma says their TC's are the best on their lenses, but has anyone done any comparisons? Edited on Dec 14, 2007 at 01:04 AM Dec 07, 2007 at 12:26 AM

zappahead Offline Image Upload: On p.1 #2 · Best TC for Sigma 120-300 f/2.8 ? I've tried the canon & the sigma and found NO differance. So buy the sigma and save some money. Mike PS I've only used 1.4x I've NEVER had good IQ with ANY 2x Edited on Dec 14, 2007 at 01:04 AM Dec 07, 2007 at 01:56 PM

Scott Sewell Offline Image Upload: On p.1 #3 · Best TC for Sigma 120-300 f/2.8 ? When I had the 120-300 I used the Sigma 1.4x TC and was please with the results. Like zappahead, I did not like the results with any 2x on any lens. Edited on Dec 14, 2007 at 01:04 AM Dec 07, 2007 at 03:45 PM

Drew_Persson Offline Buy and Sell: On p.1 #4 · Best TC for Sigma 120-300 f/2.8 ? Scott Sewell wrote: When I had the 120-300 I used the Sigma 1.4x TC and was please with the results. Like zappahead, I did not like the results with any 2x on any lens. Was your 1.4x the EX DG APO or the earlier version? Thanks. Edited on Dec 14, 2007 at 01:04 AM Dec 07, 2007 at 08:27 PM

Scott Sewell Offline Image Upload: On p.1 #5 · Best TC for Sigma 120-300 f/2.8 ? It was the EX, but when I had it I don't think Sigma had come out with the DG designation yet. Edited on Dec 14, 2007 at 01:04 AM Dec 07, 2007 at 09:58 PM

rgold1963 Offline Image Upload: Off p.1 #6 · Best TC for Sigma 120-300 f/2.8 ? I've used both and didn't see any difference in either the 1.4X or the 2X. Edited on Dec 14, 2007 at 01:04 AM Dec 07, 2007 at 10:47 PM

Chris_Platt Offline Buy and Sell: On p.1 #7 · Best TC for Sigma 120-300 f/2.8 ? I don't favor the 2x either. Just very difficult to get a keeper. Examples of what I've tried to do with it at the link below so you can judge for yourself. http://www.fredmiranda.com/forum/topic/594193 Edited on Dec 14, 2007 at 01:04 AM Dec 08, 2007 at 03:23 AM

Drew_Persson Offline Buy and Sell: On p.1 #8 · Best TC for Sigma 120-300 f/2.8 ? Nice, looks like there will be a Sigma 1.4x in my future...time to sell the Canon 400 5.6 and pocket the $800 difference. Edited on Dec 14, 2007 at 01:04 AM Dec 09, 2007 at 02:39 AM

Drew_Persson Offline Buy and Sell: On p.1 #9 · Best TC for Sigma 120-300 f/2.8 ? Got the 1.4x DG, here are two 100% crop 40D comparison shots. Poor shop lighting at ISO 800 and the exposure was slightly different, so I reduced the brightness of the w/tc image a bit. Would have been better to do it in RAW I suppose, but I didn't bother. Focus on the center of the color grid using 10X liveview. ~280mm w/o TC, ~200mm with. Sharpness loss isn't bad, though the loss of contrast/saturation with the TC is more noticable. When clipping out sections of the images and looking at them side by side, I'm pretty impressed. Very little difference, seems like even less difference than when looking at the images as a whole. Dec 14, 2007 at 01:04 AM

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