hammer418 Goldmember  More info | Jul 05, 2011 20:13 | #1096 DiMAn0684 wrote in post #12709399  I don't know about 7D, but with 50D AF'ing @ 420mm with max aperture of f/8 is a big pain, I just turn on 10x live view and use MF on the rare occasions when I do use the lens with a TC. Ditto ! ...... that method gives the best results for me. Strangers are just friends that you've never met .... I'm Mike
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Techuser Senior Member  451 posts Likes: 4 Joined Apr 2007 Location: Brazil More info | Jul 11, 2011 16:39 | #1097 I use a 1.4x on my 70-300 (canon not tamron) all the time, I find focusing with the TC a lot easier due the DOF being a bit more shallow Canon XSi | 18-55 IS | 50 1.8 | 70-300 IS | 300 2.8 FD
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jacobsen1 Cream of the Crop  9,629 posts Likes: 32 Joined Jan 2006 Location: Mt View, RI More info | Jul 12, 2011 06:23 | #1098  Devil's Hopyard by benjacobsen, on Flickr My Gear List
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whanner Member 54 posts Joined Dec 2010 Location: USA More info | Jul 12, 2011 15:00 | #1100 Here are some shot's where the focus worked good and some where the focus was not so good....cant be me....right       ---------------
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bigrig Senior Member  268 posts Joined Jun 2007 More info | Jul 13, 2011 16:52 | #1101 Wow, the ones with good focus are awesome! What camera body?
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whanner Member 54 posts Joined Dec 2010 Location: USA More info | Jul 14, 2011 07:18 | #1102 Thanks....60D ---------------
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shane33 Member 210 posts Likes: 1 Joined Aug 2008 Location: Sydney Australia More info | Jul 14, 2011 19:18 | #1103 guys if you had the choice to get this lens or the canon 70-200F4L wich one would you think be a better choice re long end use www.flickr.com/photos/shane33
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bigrig Senior Member 268 posts Joined Jun 2007 More info | Jul 14, 2011 21:23 | #1104 At 300mm the Tamron is way better.
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Jul 15, 2011 00:15 | #1105 +1 sold my 70-200 for the 300mm and vc. Please call me Sandra
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jacobsen1 Cream of the Crop 9,629 posts Likes: 32 Joined Jan 2006 Location: Mt View, RI More info | Jul 15, 2011 09:49 | #1106 shane33 wrote in post #12759688 guys if you had the choice to get this lens or the canon 70-200F4L wich one would you think be a better choice re long end use as mentioned do you need 300 or not? I have the 70-300 because it's smaller, lighter, cheaper and covers a larger range w/o making any huge IQ sacrifices. My Gear List
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Mick5 Member 244 posts Likes: 1 Joined Nov 2010 Location: London More info | i sold my canon 70-200 F/4 IS and bought 70-300L and never look back.
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whanner Member 54 posts Joined Dec 2010 Location: USA More info | Jul 15, 2011 10:27 | #1108 I think for the price the Tamron is an awesome lens. You may have to work with Tamron service to get it fine tuned or you could get an awesome issue....it seems to be luck of the draw though. Currently, Tamron has my lens and 60D trying to resolve the soft-focus issue. They just received it today (7/15/11) I'm sure it will be a few days before I hear back from them. ---------------
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 IMG_3130 by speedync, on Flickr IMG_3133 by speedync, on Flickr
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I don't know why, but Flickr is really softening my photos. A few more, all @ 300mm.  IMG_3144 by speedync, on Flickr IMG_3139 by speedync, on Flickr IMG_3149 by speedync, on Flickr
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all in auto focus mode.
