which one has faster AF, 300mm f/4 or 400mm f/5.6?
Sfordphoto Goldmember 2,564 posts Joined Feb 2008 More info | Aug 03, 2008 22:50 | #391 |
NZDoug "old fashion"  1,499 posts Joined Jul 2007 Location: French Bay, on the shores of the mighty Manukau Harbour, Aoteoroa More info | Question, HEY! HO!
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LesterWareham Moderator  More info | Aug 05, 2008 06:50 | #393 Sfordphoto wrote in post #6041270  which one has faster AF, 300mm f/4 or 400mm f/5.6? You need someone who has both. Gear List
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Sfordphoto Goldmember 2,564 posts Joined Feb 2008 More info | Aug 05, 2008 17:34 | #394 Lester Wareham wrote in post #6049259 You need someone who has both. I would guess they are both similar as long as the focus range limiter settings have a similar range. The 300/4 MFD is much better than the 400/5.6 (max magnification 0.24X compared to only 0.12X for the 400/5.6). A bit like a macro lens the 300/4 will be a little slower if you leave it on the full focus range, but one should compare eggs with eggs. I am always wary of AF speed comparisons because there is no easy objective test, so any info is subjective; ie opinion. thanks!
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ninjaboy Member 166 posts Joined Oct 2007 More info | here a couple from when i hired this lens  HOSTED PHOTO please log in to view hosted photos in full size.  HOSTED PHOTO please log in to view hosted photos in full size.
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peber Senior Member  250 posts Joined Oct 2006 Location: Sweden More info | Taken in the zoo, no danger for the photog!  /Per IT Consultant by trade, photographer by heart
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Aug 20, 2008 22:27 | #397
ll 1D Mark iii ll 40D ll XTI ll 17-40mm f/4L ll ll 300mm f/4 L IS ll 50mm f/1.4 ll 420EX ll
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nicksan Man I Like to Fart  24,738 posts Likes: 53 Joined Oct 2006 Location: NYC More info | 300L + 1.4x TC  300L  300L + 1.4x TC  300L 
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Aug 25, 2008 03:10 | #399 man i am trying to refrain from getting this lens because i know that i will want the 2.8 version, but those pictures are nice. Canon EOS-1D Mark II N | Sony Alpha NEX-6 | Canon EOS 5D | Canon EOS 6D | Canon EOS 6D Mark II | EF 70-200mm 1:2.8 L USM | EF 24-70mm 1:2.8 L USM | EF 17-40mm 1:4 L USM | EF 50mm 1:1.8 STM | EF 40mm 1:2.8 STM | EF 35mm 1:2 IS USM | EF 24-105mm 1:4 L IS USM | 580EX II
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EWR72 Senior Member 290 posts Joined Aug 2008 More info | Aug 26, 2008 10:07 | #400 Some great examples of what this lens can produce (along with the photographers of course!). I think that this will be my next lens purchase although it may take some time. I enjoy using the 200mm 2.8 Prime but I think by having the extra reach and IS I will be able to get a few more sports action shots ehich is something I plan to try out more. Now that the 50D has been released I will be getting that first then hopefully the 300mm F4 IS. Keep the samples coming My new Flickr: http://www.flickr.com/photos/76980420@N02/
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timrocks311 Senior Member 289 posts Likes: 2 Joined Jul 2008 Location: PA More info | Aug 26, 2008 20:44 | #401 great pictures by everyone! this is my new favorite lens after reading this thread. i've always been interested in the 100-400L, but i now believe that this 300L w/ TCs is way better and quite versatile. 70D | 18-35 Art | 50 f/1.4 | 85 f/1.8 | 100L
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nicksan Man I Like to Fart 24,738 posts Likes: 53 Joined Oct 2006 Location: NYC More info | Here'a a few more from the same series...  300L  300L + 1.4x TC  300L + 1.4x TC 
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nicksan Man I Like to Fart 24,738 posts Likes: 53 Joined Oct 2006 Location: NYC More info | Some Misc shots around the house testing the lens out...   300L + 2x TC 
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pdccameras Member  183 posts Joined Jun 2007 Location: North Eastern US More info | Here are a few more! I love the 300mm f/4 for football, marching band, even nature when I can get close enough (5 ft/mm or 15ft with the 300mm). These pics show the potential for static images. The next post shows the ability of the lens for sports.  HOSTED PHOTO please log in to view hosted photos in full size.  HOSTED PHOTO please log in to view hosted photos in full size. pdccameras - 5DMII, 40D, 350D(IR MOD), 17-55 f/2.8 IS, 17-40L f/4, 28-70L f/2.8, 24-105 f/4 IS. 50mm f/1.4, 85L f/1.2, 85 f/1.8, 70-200L f/2.8 IS , 100mm f/2, 100mm f/2.8 Macro, 135L f/2.0, 300L f/4 IS, 400L f/5.6, 430 EX flash, TC 1.4X II
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pdccameras Member 183 posts Joined Jun 2007 Location: North Eastern US More info | Here are a couple of football pics (American football) taken with the 300 f/4. I may have used the 1.4X Mark II, I can't recall. It doesn't seem to show up in the exif.  HOSTED PHOTO please log in to view hosted photos in full size.  HOSTED PHOTO please log in to view hosted photos in full size. pdccameras - 5DMII, 40D, 350D(IR MOD), 17-55 f/2.8 IS, 17-40L f/4, 28-70L f/2.8, 24-105 f/4 IS. 50mm f/1.4, 85L f/1.2, 85 f/1.8, 70-200L f/2.8 IS , 100mm f/2, 100mm f/2.8 Macro, 135L f/2.0, 300L f/4 IS, 400L f/5.6, 430 EX flash, TC 1.4X II
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