Out of focus....why?????
May 10, 2012 10:13:36 #
Question on focusing... Sometimes when I am taking a picture of something far away, camera set on auto focus, looks focused in view finder, then when I crop a bit in photo software subject is slightly out of focus. Why does this happen?? I've had some nice shots, then subjects put of focus!! So aggrevating!!!! Please help!
Thanks
Debbie
Thanks
Debbie
May 10, 2012 11:02:29 #
I could give you a better answer if I knew what camera,lens, and settings you used and could see the picture.
Please supply more information.
Larry
Please supply more information.
Larry
May 10, 2012 12:33:10 #
Cameras with multiple focus dots should be set to one central dot and use that on what you need in focus.
Sarge
Sarge
May 10, 2012 12:53:31 #
treadwl wrote:
I could give you a better answer if I knew what camera,lens, and settings you used and could see the picture.
Please supply more information.
Larry
Please supply more information.
Larry
I agree with treadwl and Sarge.
If you can, post a couple of different originals and check "store original", box.
I'm not sure I can correctly analyze, but would sure like to go thru the exercise of trying to.
Pat
(Snap Shot Guy)......
May 11, 2012 07:32:45 #
Dgusty3 wrote:
... when I am taking a picture of something far away, camera set on auto focus, looks focused in view finder, then when I crop a bit in photo software subject is slightly out of focus. Why does this happen??
Some general thoughts as to why a cropped photo would be blurry.
1. Check "resampling" settings on the editing program you're using.
2. When you crop, you're making the photo smaller. If you are viewing in a larger size than the cropped photo will look best at (oversized), it will look pixilated or blurry. Try to find an 'actual size' feature in a menu of your editing program.
3. You didn't say, but if using zoom, it's best to use a tripod or 'steady' your camera as best you can. There's a difference between optical zoom and digital zoom also. I always turn digital zoom off, if my camera has that setting.
4. A photo on your little LCD screen will most times look better than on your monitor at actual size. That's why we take more than one photo of the same subject.
5. You need new glasses. (joke)
May 11, 2012 08:44:20 #
A high ISO may create a "soft" focus as well. What ISO were you using? Are you indoors or outdoors?
May 11, 2012 11:39:15 #
I find auto focus can not always guess what you trying to focus on - especially at longer distances. It usually tries for "center of photo" and high contrast things in pix. Try out some of the other settings . Play and practice. The best shots sometimes are accidents when we try new settings.
I only use Auto-focus when my eyes are tired.
I only use Auto-focus when my eyes are tired.
May 11, 2012 14:44:18 #
sarge69 wrote:
Single center spot focus is the best way to assure accurate subject focus.Cameras with multiple focus dots should be set to one central dot and use that on what you need in focus.
May 11, 2012 15:43:37 #
Like Treadwl said, there are too many possibilities to even begin suggesting without a full copy of the image and the settings (including focus distance).
May 11, 2012 15:47:04 #
Hi everyone, thanks for the comments,I should have posted a photo to begin with. I have one photo of a tiger that i printed a 8x10 that is slightly blurry. I have a cannon t2i. This photo was taken indoors through glass. I know that is hard to get a great picture but some of my others like that are awesome! I did use my 250 lens cause he was pretty far away. I have had this do it to me a few times where the subject is out of focus. I did have it set on aperture and auto focus. settings were f/5.6, 1/60 sec. ISO 400 focal length 250
Hope this helps with all of you trying to help me. Thanks!
Debbie :)
Hope this helps with all of you trying to help me. Thanks!
Debbie :)
May 11, 2012 16:05:56 #
When I look at this zoomed in on its whiskers I see what looks like motion blur vertically. A 1/60th of sec at 250 mm is too slow for hand held or (if this guy is live) for a moving animal. I assume you had image stabilization turned on but am not familiar enough with your camera to know if the glass would confuse it. Not knowing the distance you were working at I can't calculate the DOF but at 5.6 you are working with a limited focus range. I am seeing 94% compression on this Jpeg which isn't helping you either.
May 11, 2012 16:39:25 #
Pure and simple:
Camera shake.
You used a 250 focal length and only had a 1/60 shutter speed...that's a recipe for camera shake.
The general rule is your shutter speed should be 1/focal length as a minimum.
So...to avoid shake, with your 250mm lens, you need to adjust your settings to get 1/250 shutter speed MINIMUM.
Camera shake.
You used a 250 focal length and only had a 1/60 shutter speed...that's a recipe for camera shake.
The general rule is your shutter speed should be 1/focal length as a minimum.
So...to avoid shake, with your 250mm lens, you need to adjust your settings to get 1/250 shutter speed MINIMUM.
May 11, 2012 16:41:55 #
gdwsr wrote:
When I look at this zoomed in on its whiskers I se... (show quote)
I took this photo when i first got my camera and was totally new at this. I was so excited when we saw these animals i was probably in a hurry to take them, scared they were going to walk away. This one was moving cause the other three i have of him he was yawning. Some of the others were perfectly clear of the baby leapard/cheetah, i'll post.
May 11, 2012 16:46:18 #
Dgusty3 wrote:
quote=gdwsr When I look at this zoomed in on its ... (show quote)
sorry i don't know how to make it vertical, in my file it shows is vertically.
May 11, 2012 16:53:49 #
Yes Debbie, this one has not (very little) camera shake. Compare the horizontal whiskers of the cats in both photos zoomed in. You will see the difference. This one is interesting because you can see the DOF fall off showing the face in perfect focus and following off to the rear which looks great.
You might want to make it a practice to use the rule of thumb rpavich mentions: 1/focal length
You might want to make it a practice to use the rule of thumb rpavich mentions: 1/focal length
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