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General photography questions and answers: Discuss Dunno what to do about this........I notice some of my pictures are out of focus. I had sworn that they were totally in focus. It's ...
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Old 20-09-2012, 08:04   #1 (permalink)
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Unhappy Dunno what to do about this.....



I notice some of my pictures are out of focus. I had sworn that they were totally in focus. It's as if the camera is lying to, but I know it's not the camera. I've had this issue, still, even after years of using my Nikon Coolpix S60 so much. I'm noticing this issue persists with the Canon EOS Rebel.

Sometimes, I will use autofocus and other times, I will use manual focus. It's not that I do not know how to focus cameras. I'm wondering if it's due to my vision. I use both the viewfinder and the LCD viewscreen. The image would be in sharp, crystal clear focus that you could see the details, even textures, but they would be out of focus by the end result. I would notice this after downloading the pics into my computer.

This is so driving me INSANE! I just don't know what to do to address this issue.... My eye doc says my eyes are perfectly fine during the exam on the 6th. I'm thinking it might be the way I process visually, but I really don't know.

I would appreciate it so much if anyone has an idea of overcoming this issue. You'd think that after years of using my Nikon Coolpix S60 that I'd overcome that issue somehow. It irks me when the camera "lies" to me when it looks like the image is in top focus, when it really wasn't..... Since, I'm having this issue with the Canon EOS Rebel, I know it's not the camera "lying" to me. It has to be me...... Arrrrrrrrrrrrrgh!

Ok.... *deep breaths* Hehehe. I'm hoping there is a possibly way to overcome that...... I don't have much time left to use the Canon EOS Rebel, as I have to give it back to my friend on Oct., the 8th. I'm gonna so miss it once I do return it.

~Firebrand
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Old 20-09-2012, 08:42   #2 (permalink)
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Re: Dunno what to do about this.....

Are you sure that it is a focus issue? It could be camera shake if you are not holding the camera still.
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Old 20-09-2012, 09:20   #3 (permalink)
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Re: Dunno what to do about this.....

How about uploading an image for us to look at?
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Old 20-09-2012, 10:41   #4 (permalink)
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Re: Dunno what to do about this.....

Give your camera to a friend and let them take an image. Then take exactly the same image yourself. If your friends is in focus, and yours isnt, then its your error. If both images are out of focus, then its the camera or lens.
Do the same with a different lens, if you get the same results then you know its a camera issue and not the lens.
Simples
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Old 20-09-2012, 11:16   #5 (permalink)
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Re: Dunno what to do about this.....

Another hint is that if any part of the photo is in focus then it is unlikely to be camera shake. If the shot is generally fuzzy then it is likely to be camera shake, in which case you will need a higher shutter speed.

Along with swalsh's check you can try taking a few shots of something with a clear defined round edge, such as a CD. Make sure that your camera is square on to the CD. If you get a single circle with fuzzy edges then it is a focussing problem. If you get 2 distinct circles (2 slightly different axes) that are a little blurred then it is camera shake. Do not use straight lines as the direction of shake can be along the line.

As Jake suggests, put up some example shots.
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Old 20-09-2012, 12:56   #6 (permalink)
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Re: Dunno what to do about this.....

I use canon cameras, this is just what I do for manual mode. The diopter for the viewer, is it adjusted for your eye? The adjustment is off the right side of viewer. Also the focus point in the viewer, is it set to beep. A lot of people won't use beep for wild life. For hard manual focusing it should beep and light up to tell you the camera has achieved focus.

I'm sorry, I forgot. The beep won't work,,,oh well,,the focus box will still light up. I like what has been said, Whipspeed has a good idea. I have never had to run tests because I jus knew I was a shaker and a mover. I work to this day to hold still when using primes with no IS. I always take a couple of breaths then let it out slow and press the button when it is still, it works.

Last edited by Boofers; 20-09-2012 at 20:24.
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Old 20-09-2012, 19:08   #7 (permalink)
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Re: Dunno what to do about this.....

Take a couple of test shots with the camera set on a tripod. Use a very simple item to photograph against a plain background. Shoot one with manual focus and the other with autofocus. If you have IS on, turn it off to do this. Then upload them and check the results.
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Old 21-09-2012, 04:42   #8 (permalink)
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Re: Dunno what to do about this.....

Boofers, beeps are of no use to me. I have no hearing. Totally forgot about the diopters..... Hehehe. Not sure how to do that part. I'll have to figure that one out.

Thanks for the tips, everyone!!
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Old 21-09-2012, 04:57   #9 (permalink)
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Re: Dunno what to do about this.....

I've uploaded 3 pics into my "Blurries" album, as you requested.
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Old 21-09-2012, 08:21   #10 (permalink)
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Re: Dunno what to do about this.....

In order to discuss these photos it would be easier if you bought them into the thread. To do that, click on the camera tool (to the right of all the icons above where you enter text). This will bring up a window showing your personal photos from which you can select the ones you want to add to the thread.

That said, these are all examples of camera shake, some more severe than others. In the sport mode setting I would guess that the camera chooses to prioritize shutter speed over aperture, but in order to get the correct exposure it is not going to set a fast shutter speed if the available light is insufficient. The mushroom for instance is taken at 1/6 second, and you will find that most people cannot hold that still for close ups. When the camera can no longer take a photo at a high shutter speed it will also use the widest aperture (smallest f/stop number). This will exaggerate your problem because with an aperture of only f/2.8 for instance you will not get a lot in focus. This is where learning the about manual settings of the camera are important and to understand the use of shutter speed and f/stop and ISO, and the interdependence of all three on each other to get a correctly exposed photo.

There is a general rule that you should use a shutter speed equivalent to the focal length of the lens you are using, in order to avoid visible signs of camera shake. To be certain I would add in the crop factor as well (APS-C sensors like the Canon have a crop value of 1.6). So, to take photos with a 50mm focal length you need to shoot with a shutter speed of of 50x1.6= 1/80sec minimum. If you cannot achieve this with ambient light you will need to use the flash, or some external lighting or place the camera on a firm base - and make sure it is kept absolutely still. With long exposures it is best to use a remote release so that you do not touch the camera while it is taking the photo, but you can get away with using the delayed action facility (= self timer), which is usually preset to 10 seconds and will allow the camera to settle for 10 seconds after you press the release before it takes a photo.

Last edited by grease spot; 21-09-2012 at 08:32.
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Old 21-09-2012, 09:03   #11 (permalink)
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Re: Dunno what to do about this.....

Hm.... Interesting.... All that info you just said is more than what my head can wrap around.... LOL! Hopefilly, I'll get it eventually. Oh, a remote would be so cool to have.

Thank you for pointing out how I could bring the pics into the thread, as I had been trying to do that very thing.... Let's see if I can do that this time.....



Hope that worked......... Let me know if it doesn't. <---- Looks like it did work!
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Old 21-09-2012, 11:16   #12 (permalink)
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Re: Dunno what to do about this.....

Graham has hit the nail on the head. We have been advising the use of a tripod/beanbag (both with a remote release otherwise they will not be so effective) and/or supplementary lighting in most of your other threads and these pictures confirm that our advice is right. Some tripods will allow the camera to be put onto a boom arm so it can be held remote from the tripod so that might be worth consideration.

It takes a long time to get to grips with the technical aspects of photography and how different settings will affect the overall picture and a lack of understanding of what is wrong with a picture will not let you make any corrections. That is why in your first thread I advised you to take things slowly and not to try to run before you can walk.

It strikes me that for the sort of photography you want to do, a camera is probably not the best tool to use. Something like an endoscope would do the job better.
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Old 21-09-2012, 12:22   #13 (permalink)
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Re: Dunno what to do about this.....

An endoscope???? Oh, hell! I was going to ask about something like this eventually! A camera probe of some sort!

Yeah, I do like having a camera, seriously. But, I do think something like a camera probe or endoscope would be what I need. I wonder if I could find something like that for photography at a reasonable price..... Hehehehe. People are telling me there's no way I could find one at a low price.... Yeah, right! Hehehehe.

Hmmmm. You're right about that.... It's just that tripods drive me crazy. Hehehehehehe. But, I will definitely take your advise into consideration. I did break an expensive tripod, as I tripped over it. LOL. Oooooops! Here are the pics to show you what I deal with in that tree cave....

Yep, I keep bruising my shoulder pressing it into that rough tree bark. Hehehehe...


Last edited by Firebrand; 21-09-2012 at 12:30.
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