i have no idea why canon suddenly hate wide aperture lenses.
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I had purchased this lens from my local camera shop and was disappointed when I discovered that it would only focus on my 5D Mark III body. It would stall and quit trying to achieve focus on the 7D if I had focused on a near object, moved to focus on a far object and moved back to a nearer object. I took it back and tried 2 more copies of the lens but all had the same issue. That night after trying to solve it by carefully looking at the 7D setup, I realized that Custom Function III Option 4 was set to stop the lens drive if focus couldn't be achieved. I reset this to "1" and then went back to my camera dealer to try the Tamron again. Problem solved!
I've seen quite a few posts with similar problems on a couple different Canon bodies. I don't know if what I did would fix those issues, but it certainly took care of me problem. I am still just now trying the lens (I just got it today) but so far I am very happy with the focus and speed of focus.
DCM - do you have a link for DigitalRev?
If you haven't already googled it - http://www.digitalrev.com/
Holy moly - they have some nasty, nasty reviews on resellerratings.com
I luckily was able to grab one from another user in the US on a buy and sell board this morning. Reading the reviews of paperwork, extra fees and just in general hassle with receiving a package from Hong Kong - I am very relieved.
What does "topaz remask" mean?
Thanks, by the way.
I will ask in this topic...
I want to do a panorama like that one I did last evening, but I want to do it now during the night. So, I want that stars will be visible. But if I shoot at 20 sec (which is max time to get sharp stars at 24mm), the bridge would be totaly burned. Thus I thought to make every shoot of panorama twice - one long exposed for stars and one shorter for bridge. Then make both panoramas seperately and blend them together in some way. Can you give me some advice how to make shoots and how then processed them?
Btw, I use 5DIII and 24-70, 2.8, II for this panorama.
PS: Keep post-processing simple as you can.
You need to stitch the panorama before making HDR. Otherwise, it is inevitable that each piece of the picture seems to have different contrast and color.
I'm going with the latter obviously of the two scenarios presented above.
Now I'm looking to get that nice 11-22 wide angle IS lens for an upcoming trip to the Grand Canyon....
I'm in the same camp. Picked up the M to lighten the load when hiking, no regrets. Even with a full complement of lenses (22, 11-22, 18-55 and EF-S 55-250 IS STM), it's only about a third the weight and space of my 6D kit (40, 17-40, 24-105, 70-200 F4 IS, 1.4x III) and gives me greater reach (17-400 equivalent vs 17-280).
I sometimes want a longer lens on the trail and the 55-250 has been a pleasant surprise on the M. It's around twice the weight and size of the other zooms (including the adapter), quick focusing, silent, and is easily handheld - even at 250mm. An EF-M variant might save half the difference in weight and space from the other EF-M zooms if it ever arrives. And it will probably cost more so this will do until then.