Recalibratiing Lenses
Apr 27, 2012 06:13:08 #
Apr 27, 2012 08:24:14 #
What do you mean by calibration? Are you having focus issues with a lens that used to work fine?
Apr 27, 2012 09:46:05 #
donrent
Loc: Punta Gorda , Fl
GoofyNewfie wrote:
What do you mean by calibration? Are you having focus issues with a lens that used to work fine?
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I've been trying to do manual settings rather than auto and when I haave my canon 75/300 on max, it just dosen't seen to be as sharp as before... Now, it also might be me... Thought I read somewhere where larger zooms might get out of adjustment ...
Apr 27, 2012 10:37:43 #
donrent
Loc: Punta Gorda , Fl
Just got back from the beach... I took off my PC filter and just had a UV on and it seems to be better.... Heres a couple of shots I took with the 75/300
Full 300
On about 200
Apr 27, 2012 10:44:41 #
donrent
Loc: Punta Gorda , Fl
The pilings were about a block away, the boats much further./.. I focused on the boats...
The two womem were about 150/200 feet away and they (the pics) are straight from the camera...
The two womem were about 150/200 feet away and they (the pics) are straight from the camera...
Apr 27, 2012 10:58:21 #
Hope you got the lens problem worked out. Love the Naples area and wish I where there to enjoy it again.
Apr 27, 2012 11:49:31 #
donrent wrote:
Just got back from the beach... I took off my PC filter and just had a UV on and it seems to be better.... Heres a couple of shots I took with the 75/300
Zooms don't work as well at the extreme long end as they do a bit below it. The first shot has some chromatic aberration, but not much, so easy to get rid of. Speedboats moving fast are going to be difficult to get sharp in any case, so try a static subject to get a better idea. Nothing much wrong with the second shot, which was taken at 75mm according to the EXIF data. What lens do you have exactly?
Apr 27, 2012 11:56:36 #
You say you are using manual settings. Does that include focusing? If so, are you sure it's not your eyes? How do images look shooting with auto focus?
My eyesight is so bad that I can't correct for it with the diopter adjustment on the camera, so always shoot with my glasses on. If I want to focus manually, I use live view and a low power magnifier on the LCD screen.
My eyesight is so bad that I can't correct for it with the diopter adjustment on the camera, so always shoot with my glasses on. If I want to focus manually, I use live view and a low power magnifier on the LCD screen.
Apr 27, 2012 12:39:35 #
donrent
Loc: Punta Gorda , Fl
rocar, I use the Canon 75/300 and I'm beginning to see that maybe I'm expecting too much at 300.. Very happy with the 75 setting tho...
Apr 27, 2012 12:39:35 #
donrent
Loc: Punta Gorda , Fl
rocar, I use the Canon 75/300 and I'm beginning to see that maybe I'm expecting too much at 300.. Very happy with the 75 setting tho...
Apr 28, 2012 04:11:34 #
donrent wrote:
rocar, I use the Canon 75/300 and I'm beginning to see that maybe I'm expecting too much at 300.. Very happy with the 75 setting tho...
I have a Canon70-300 EF IS lens, which also is less than perfect at full stretch, and a 70-200 EF IS f4L which is superb, even at its longest, though, since having dropped it, I don't think the IS is working anymore.
70-200 f4 L at 200mm
Apr 28, 2012 05:33:34 #
donrent
Loc: Punta Gorda , Fl
I usually think best between 4 and 5 am... So this morn was no different... I've been hand holding lately and before either tripod or like a hand railing to steady the camera...Geeeze... We humans are so dumb at times....
Apr 28, 2012 07:35:52 #
Apr 28, 2012 07:48:37 #
The ruel of thumb is use a shutter speed the same as your mm. In other words 200mm 200s, 100mm 100s
Apr 28, 2012 07:58:04 #
heyjoe wrote:
nice bird shot
It's a cheat, really. It was at a country fair, and had come from a hawk conservancy. Hardest part was finding an angle where the background didn't include kids in buggies, burger vans, tractors on display etc.
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