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10/14/2012 11:22:01 AM · #1 |
| Has anyone ever sent their camera(s) in to be cleaned and recalibrated? I'm having a horrible time with focusing. Didn't initially but now it seems almost every picture has something wrong with it. Had considered resetting the camera to factory condition. Another thought, maybe it's just me. |
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10/14/2012 11:29:10 AM · #2 |
| Resetting to factory defaults isn't a bad idea... couple that with shooting some test shots under controlled conditions to really see if there is a difference. |
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10/14/2012 11:56:53 AM · #3 |
Try a tripod.
Focus on an area with high contrast (black/white pattern area with hard edges)
Cleaning your camera is easy, and sending it away to be done is madness (plus very expensive)
Reset to factory defaults is always good.
It's as likely to be the lens as it is the camera. I haven't ever really loved my 28-135, and questionable focusing has always been one of my issues with it. |
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10/14/2012 12:35:10 PM · #4 |
Originally posted by Cory:
Cleaning your camera is easy, |
It is?
Originally posted by Cory:
It's as likely to be the lens as it is the camera. |
I've got a couple of sharp ones...the 85, and 100...and still am seeing some of that blur. I'll reset and see what happens and take some with the tripod. |
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10/14/2012 01:21:19 PM · #5 |
Check the lenses. Hold them with a bright light shining thru them with the aperture wide open. Also, hold them where you can see the reflections from the glass surfaces to inspect for smutz. Check both front and rear elements. It's easy to put a fingerprint on the rear element when changing lenses, and not notice it at the time.
Check the diopter setting on the camera, to make sure that it's right for your eye that you use to focus. If you switch eyes and are manually focusing, then that may be a problem if your eyes are different, as mine are.
Take a look at the exif files with some of the photos in question to see if low shutter speed may have been causing the problem. For focus testing, flash works good because it pretty much eliminates camera shake.
Inspect the mirror and ground glass inside your camera, to make sure that the mirror is not slipping out of the frame that holds it, and to be sure that the ground glass and mirror are both clean.
You can also read the manual, to see how to "clean the sensor" . With the lens off, and the mirror up, you can inspect the sensor using a bright light and look at the reflection of the light on the sensor to look for smutz or dust.
Good luck with finding and correcting the problem.
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10/14/2012 01:41:26 PM · #6 |
Originally posted by PuppyDogMom:
Originally posted by Cory:
Cleaning your camera is easy, |
It is?
Originally posted by Cory:
It's as likely to be the lens as it is the camera. |
I've got a couple of sharp ones...the 85, and 100...and still am seeing some of that blur. I'll reset and see what happens and take some with the tripod. |
Sure it is - read up on the Copperhill method. It's like washing a tiny window with a tissue wrapped over a spatula. not much to it really, and you can't really screw this up too badly, the sensor is about as tough as your sunglasses, and you know how hard they are to scratch... Basically it's just a matter of being very careful to keep your cleaning equipment sterile, using a blower (bulb type is recommended, but I just use canned air, although I do use very high quality canned air), use one drop of solvent, and wipe carefully - give it a few moments to dry (keep the camera upright, don't lay it on it's back so dust settles in), one or two more cleaning blasts of air (hold the blower close to the sensor so as to not blow dust in.).. Not much to it really.
Tripod is a great idea, as is a remote shutter release, you can still shake the camera on a tripod if you're touching it. |
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