My eye says one thing, but the results say not in focus bud.
Feb 1, 2013 11:14:13 #
I received a new lens for Christmas. It is a Tamron AF 70-200 F2.8. I have tried to use the manual focus function without good results. I am using my corrective glasses to set the focus and it tells me it's dead on sharp, but the results are not. Any suggestions will be appreciated,
Feb 1, 2013 11:18:56 #
What camera are you using? It would help if you posted a sample image for us to examine - tick the "store original" box.
Feb 1, 2013 11:41:00 #
Graham S - how about the optic adjustment on the viewfinder - would that matter?
Feb 1, 2013 11:45:50 #
hamtrack wrote:
I received a new lens for Christmas. It is a Tamron AF 70-200 F2.8. I have tried to use the manual focus function without good results. I am using my corrective glasses to set the focus and it tells me it's dead on sharp, but the results are not. Any suggestions will be appreciated,
If your camera has "Live View" turn it on, zoom into 10x and focus manually. See if this has a positive affect. It may be that your lens needs a tune up.
Feb 1, 2013 11:56:48 #
Without any more information to go by, look through the view finder with the glasses off.
Feb 1, 2013 12:15:14 #
bebo1998 wrote:
Graham S - how about the optic adjustment on the viewfinder - would that matter?
It would not affect the focussing accuracy of the camera and lens, it would affect your ability to see the viewfinder image correctly.
Feb 1, 2013 12:54:43 #
Willy wrote:
This procedure is the easiest and one of the most accurate method to test the IQ of a lens.If your camera has "Live View" turn it on, (using the "+" button) zoom (enlarge) to 10x, and focus manually.
Feb 1, 2013 17:29:24 #
Feb 1, 2013 17:31:15 #
d-5000 Nikon
GrahamS wrote:
What camera are you using? It would help if you posted a sample image for us to examine - tick the "store original" box.
Feb 1, 2013 17:53:43 #
I implemented a test without my glasses on and set the manual focus. The d-5000 was sitting on a Manfroto tripod to avoid any shake. Took 29 different shots on burst. 15 turned out bad focus and only the last 15 were sharp.
hamtrack wrote:
d-5000 Nikon
GrahamS wrote:
What camera are you using? It would help if you posted a sample image for us to examine - tick the "store original" box.
Feb 2, 2013 04:26:32 #
hamtrack wrote:
I implemented a test without my glasses on and set the manual focus. The d-5000 was sitting on a Manfroto tripod to avoid any shake. Took 29 different shots on burst. 15 turned out bad focus and only the last 15 were sharp.
hamtrack wrote:
d-5000 Nikon
GrahamS wrote:
What camera are you using? It would help if you posted a sample image for us to examine - tick the "store original" box.
Why are you using "burst"? Take one shot of a stationary subject such as a brick wall, using live view to focus, and take another using the viewfinder Autofocus. Compare the two.
Feb 2, 2013 06:55:10 #
Here's what I do, but I'm a newbie. 1st I have the diopter adjusted before I start. When I use the viewfinder I take my glasses off. I focus then switch to live view and put on my glasses when I increase the size of the image. Then I increase size all the way and focus again still with glasses on. There's always a big difference in what I see. Hope this helps.
Feb 2, 2013 09:06:04 #
I used burst because I was shooting birds that might be in flight. Burst should not make any difference if the focus is correct should it? I will try your suggestion.
GrahamS wrote:
quote=hamtrack I implemented a test without my gl... (show quote)
Feb 2, 2013 09:06:39 #
This sounds like a good routine and I will try it, thanks.
ph0t0bug wrote:
Here's what I do, but I'm a newbie. 1st I have the diopter adjusted before I start. When I use the viewfinder I take my glasses off. I focus then switch to live view and put on my glasses when I increase the size of the image. Then I increase size all the way and focus again still with glasses on. There's always a big difference in what I see. Hope this helps.
Feb 2, 2013 09:10:36 #
bebo1998 wrote:
Graham S - how about the optic adjustment on the viewfinder - would that matter?
Just a reminder: adjust the diopter so that the writing inside the viewfinder is sharp. Do not adjust it to the scene in the viewfinder.
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