Mar 16, 2015 09:11 | #6421 [QUOTE=peteg1;17476310]Well I never knew of this issue with mine but with the bright sun on my white Xterra it wouldn't focus, just had to drop down a little to the top of my tire and it was fine. I would say 7 of 10 times it would not focus on very sunlit white. Gripped 7D, gripped, full-spectrum modfied T1i (500D), SX50HS, A2E film body, Tamzooka (150-600), Tamron 90mm/2.8 VC (ver 2), Tamron 18-270 VC, Canon FD 100 f/4.0 macro, Canon 24-105 f/4L,Canon EF 200 f/2.8LII, Canon 85 f/1.8, Tamron Adaptall 2 90mmf/2.5 Macro, Tokina 11-16, Canon EX-430 flash, Vivitar DF-383 flash, Astro-Tech AT6RC and Celestron NexStar 102 GT telescopes, various other semi-crappy manual lenses and stuff.
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Mar 16, 2015 09:12 | #6422 cmosman wrote in post #17477226  Advice please  I am looking to add a 1.4 x convertor to this lens for Moon shots. My canon 1.4 does not fit..arrrr. So I need another one, and not sure which one....Kenko Teleplus DGX/DG Pro-300 or Sigma 1.4x EX DG Tele Converter. Help !The Kenko's are good. I've never used the Sigma. Gripped 7D, gripped, full-spectrum modfied T1i (500D), SX50HS, A2E film body, Tamzooka (150-600), Tamron 90mm/2.8 VC (ver 2), Tamron 18-270 VC, Canon FD 100 f/4.0 macro, Canon 24-105 f/4L,Canon EF 200 f/2.8LII, Canon 85 f/1.8, Tamron Adaptall 2 90mmf/2.5 Macro, Tokina 11-16, Canon EX-430 flash, Vivitar DF-383 flash, Astro-Tech AT6RC and Celestron NexStar 102 GT telescopes, various other semi-crappy manual lenses and stuff.
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Peter2516 Cream of the Crop  More info | Mar 16, 2015 11:09 | #6423 okieplainsdrifter wrote in post #17475791 Finally got around to stacking some images of the Orion nebula with the tamron. 20, one minute exposures with a skytracker. Wow. Really nice. Peter
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JMPhotos "Childhood ruined"  More info | Mar 16, 2015 11:13 | #6424 Peter2516 wrote in post #17477400 Wow. Really nice. I was thinking the same thing. Didn't know the Tammy would perform so well with the Nubula. Great results! Canon 6D, & Sony α6000
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MalVeauX "Looks rough and well used"  More info | Mar 16, 2015 12:57 | #6425 cmosman wrote in post #17477226 Advice please I am looking to add a 1.4 x convertor to this lens for Moon shots. My canon 1.4 does not fit..arrrr. So I need another one, and not sure which one....Kenko Teleplus DGX/DG Pro-300 or Sigma 1.4x EX DG Tele Converter. Help !Heya,
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gabebalazs Bird Whisperer  More info Post edited over 8 years ago by gabebalazs. | True, as I noted in my post too. However, how do you explain the 7DII successfully auto focusing on the same area every time it was tested? While it is definitely a low (or no) contrast area, there may be dirt on the side of his car which we cannot see in Pete's test images since the white areas are washed out in his photos. SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
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MalVeauX "Looks rough and well used" More info | Mar 16, 2015 14:03 | #6427 Heya,  IMG_3682_mark by Mwise1023, on Flickr IMG_3684_mark by Mwise1023, on Flickr IMG_3598_mark by Mwise1023, on Flickr IMG_3625_mark by Mwise1023, on Flickr IMG_3612_mark by Mwise1023, on Flickr IMG_3616_mark by Mwise1023, on Flickr IMG_3655_mark by Mwise1023, on Flickr IMG_3690_Mark by Mwise1023, on FlickrVery best,
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Mar 17, 2015 13:38 | #6428 Haven't looked in here for a while, nice shots all  Duck by jj_glos, on Flickr Duck by jj_glos, on FlickrThe Swan family were out and about.  Swan by jj_glos, on Flickr Swan by jj_glos, on FlickrI did then try for a few BiF but nothing was around in range. Then walking back home I spied this little fella in the trees by our house:  Squirrel by jj_glos, on FlickrAaaargh, I was still in TV mode for Bif, so I quickly changed before he moved off as ISO 10000 as above is a bit high! I was too slow though!   Squirrel by jj_glos, on FlickrHe did settle a little way up a tree afterwards  Squirrel by jj_glos, on FlickrCropped shot:  Squirrel by jj_glos, on Flickr
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gabebalazs Bird Whisperer More info Post edited over 8 years ago by gabebalazs. | I had a Kenko DG Pro-300 and I thought it was pretty good, ...until I got a Sigma APO EX DG 1.4x TC. Granted, I used it with Sigma lenses (70-200 2.8 OS, and 120-300 2.8 OS).  Moon Tamron 150-600mm 1.4x TC 70D by gabebalazs, on FlickrSONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
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Mar 18, 2015 10:56 | #6430 gabebalazs wrote in post #17480415 I had a Kenko DG Pro-300 and I thought it was pretty good, ...until I got a Sigma APO EX DG 1.4x TC. Granted, I used it with Sigma lenses (70-200 2.8 OS, and 120-300 2.8 OS). The Sigma is visibly sharper with better contrast. I sold the Kenko. Plus, the Sigma does fit the Tamron 150-600 too (so does the Kenko but a Canon won't) I also had a Sigma 2x APO EX DG tc and it was sharper than two copies of Canon's expensive 2x III tc. Since I sold my big Sigma lens, I sold the 2x TC too. But I kept the 1.4x tc for occasional shots with my Tamron, like this one (using a 70D): Moon Tamron 150-600mm 1.4x TC 70D by gabebalazs, on FlickrNice shot! For the price of the Sigma, it should be better than the Kenko (it's almost 2x the price). I guess I'll have to stick with my Kenkos for now... Gripped 7D, gripped, full-spectrum modfied T1i (500D), SX50HS, A2E film body, Tamzooka (150-600), Tamron 90mm/2.8 VC (ver 2), Tamron 18-270 VC, Canon FD 100 f/4.0 macro, Canon 24-105 f/4L,Canon EF 200 f/2.8LII, Canon 85 f/1.8, Tamron Adaptall 2 90mmf/2.5 Macro, Tokina 11-16, Canon EX-430 flash, Vivitar DF-383 flash, Astro-Tech AT6RC and Celestron NexStar 102 GT telescopes, various other semi-crappy manual lenses and stuff.
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gabebalazs Bird Whisperer More info Post edited over 8 years ago by gabebalazs. | Bought my Sigma mint shaped used for $175 I think a couple years ago. It could also be copy variation. SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
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Peter2516 Cream of the Crop More info | Mar 18, 2015 21:06 | #6433 gabebalazs wrote in post #17480415 I had a Kenko DG Pro-300 and I thought it was pretty good, ...until I got a Sigma APO EX DG 1.4x TC. Granted, I used it with Sigma lenses (70-200 2.8 OS, and 120-300 2.8 OS). The Sigma is visibly sharper with better contrast. I sold the Kenko. Plus, the Sigma does fit the Tamron 150-600 too (so does the Kenko but a Canon won't) I also had a Sigma 2x APO EX DG tc and it was sharper than two copies of Canon's expensive 2x III tc. Since I sold my big Sigma lens, I sold the 2x TC too. But I kept the 1.4x tc for occasional shots with my Tamron, like this one (using a 70D): Moon Tamron 150-600mm 1.4x TC 70D by gabebalazs, on FlickrCool. Very nice. Peter
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JMPhotos "Childhood ruined" More info | Mar 19, 2015 01:26 | #6434 gabebalazs wrote in post #17480415 I had a Kenko DG Pro-300 and I thought it was pretty good, ...until I got a Sigma APO EX DG 1.4x TC. Granted, I used it with Sigma lenses (70-200 2.8 OS, and 120-300 2.8 OS). The Sigma is visibly sharper with better contrast. I sold the Kenko. Plus, the Sigma does fit the Tamron 150-600 too (so does the Kenko but a Canon won't) I also had a Sigma 2x APO EX DG tc and it was sharper than two copies of Canon's expensive 2x III tc. Since I sold my big Sigma lens, I sold the 2x TC too. But I kept the 1.4x tc for occasional shots with my Tamron, like this one (using a 70D): Moon Tamron 150-600mm 1.4x TC 70D by gabebalazs, on FlickrThat's a sharp moon shot! Canon 6D, & Sony α6000
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kikislater Member 33 posts Likes: 5 Joined Nov 2014 More info | Mar 19, 2015 03:36 | #6435 gabebalazs wrote in post #17480415 I had a Kenko DG Pro-300 and I thought it was pretty good, ...until I got a Sigma APO EX DG 1.4x TC. Granted, I used it with Sigma lenses (70-200 2.8 OS, and 120-300 2.8 OS). The Sigma is visibly sharper with better contrast. I sold the Kenko. Plus, the Sigma does fit the Tamron 150-600 too (so does the Kenko but a Canon won't) I also had a Sigma 2x APO EX DG tc and it was sharper than two copies of Canon's expensive 2x III tc. Since I sold my big Sigma lens, I sold the 2x TC too. But I kept the 1.4x tc for occasional shots with my Tamron, like this one (using a 70D): Moon Tamron 150-600mm 1.4x TC 70D by gabebalazs, on FlickrDo you have other examples ?
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