Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
Main Photography Discussion
Canon 7D Focusing Problem
Page <prev 2 of 2
Feb 23, 2013 12:00:49   #
ole sarg Loc: south florida
 
Is it the camera or you how about some examples

Reply
Feb 23, 2013 12:19:30   #
Noela
 
Had to be the camera. Once I adjusted the appropriate "switch" it worked fine.

Reply
Feb 23, 2013 13:03:02   #
jeep_daddy Loc: Prescott AZ
 
Sreejib wrote:
Few days ego my friends purchased a Canon 7D. But after taking lots of pics we found maximum of those are soft or slight out of focus. Even I have also tried lots with this camera along with its various focusing mode & 3 to 4 different lenses.
Not only the fast moving subject was blurred the static subject is also out of focus, after tried to maintaining the total photographic rule. Have anybody experienced with the same problem, if yes, then please tell me the solution.


Yes. It takes practice, and play with your camera settings and exposure settings. Play with the lens features as well. Use a tripod, faster shutter speed and steady hand.

Reply
 
 
Feb 23, 2013 13:22:46   #
gemlenz Loc: Gilbert Arizona
 
H: I have a 7D. I know where one battery is. Located on the bottom that pops out when you open the door. Where is the other one located?

Reply
Feb 23, 2013 13:31:31   #
shutterbug64 Loc: Colorado
 
In the same compartment in a verticle position and it is flat but round and small and is in a clip you pull out. I didn't know it was there either.

Reply
Feb 23, 2013 13:37:40   #
gemlenz Loc: Gilbert Arizona
 
I found it. Good to know. So when that battery dies what happens?



Reply
Feb 23, 2013 13:42:52   #
Sreejib Loc: Calcutta, INDIA
 
mikemilton wrote:
The only thing you have not said is if the focus is off in the same direction for all the lenses.

There are variances in all lenses and bodies. These may work out to a wash or they mad add up to OOF images.

That said, the odds of all four lenses and your 60D being 'off' in the same direction such that they work well while your 7D is spot on and showing that all four of the lenses are 'off' the same way seem slight.

You seem to have a couple of options:
- return the body for replacement
- seek a canon repair
- try you own microadjustment

So, Are they all OOF the same direction and consistently or in different directions or inconsistently. If they are consistently fine on your other body but all over the place on the new one, that suggests a problem to me that you might want some help from Canon on.
The only thing you have not said is if the focus i... (show quote)


Mike, today I went to Canon Service they also checked and agreed that it has some flaws with its focusing system. And they keep the Camera for repair. Hope they will fix issue.
Thanks for your response.

Reply
 
 
Feb 23, 2013 13:48:52   #
olcoach Loc: Oregon
 
Once again my favorite forum has given me some great info. I looked for the second battery and it is really there. Thanks for the heads up. Have fun and keep shootin'. Mike

Reply
Feb 23, 2013 13:56:37   #
rpavich Loc: West Virginia
 
Sreejib wrote:

Yes, Ferret I know the micro adjustment. But, can you tell me that why the all 4 lenses (Canon EFS 18-135mm, Canon EF 70-200mm F/4 L, Tamron SP 17-50mm F/2.8, & Tamron SP 90mm F/2.8) are need for micro adjustment while those lenses are absolutely fantastic with my 60D.


I'm not saying that this is your problem but the reason is that your camera's have different "manufacturing tolerances" built in.

Think of it this way...

All objects have a tolerance; size, color, feel, nothing is ever perfect, so all manufacturing items differ in slight or not so slight ways.

Let's say that your lenses (on a tolerance scale of 1-10) are at 7-7-8-and 9...the "high end" of that scale. (5 being "perfect" for camera and lens)


Let's also say that your 60D is at 3 or 4 on it's own internal tolerance.

So the combination of those tolerances stack up between lens and camera to result in an acceptably sharp shot.

However, let's say that your particular copy of your 7D is at a 7 itself.

The theoretical focus point is still at 5...and the combination of 7's together or 7's and 8's together means that the focus point is at 7 and will not be acceptable to you. (perfect being a 5 camera and 5 lens together)


Does that mean that the 7D is bad?

No...


It just means that by chance...the tolerances don't play well with your particular set of lenses..that's all.

My 5D II is toleranced very much to the back...any lens that I've ever bought has had to have SOME backward adjustment to be sharp...that's just life.


Make sense?

Reply
Feb 23, 2013 14:32:18   #
FrumCA
 
gemlenz wrote:
I found it. Good to know. So when that battery dies what happens?


The small battery (CR1616) is a lithium battery that retains the date and time settings when the main battery is removed. Use a fingernail to slide it out. Hope this helps.

Reply
Feb 24, 2013 10:23:12   #
RichardSM Loc: Back in Texas
 
Noela wrote:
Had to be the camera. Once I adjusted the appropriate "switch" it worked fine.


Hi I still can't find any site that said anything about a "SWITCH" being set to any way that you have described. Can you be more specific thank you? I have read a lot of comments on the 7D having focusing problems such as pulling the battery and Len’s cleaning the contacts of both lens and camera and sending it back too Canon for adjustment but nothing like what you’re saying?

Reply
 
 
Feb 24, 2013 19:19:36   #
Noela
 
I've referred to the "switch" only as a description of what it does. I know it's in the menu under one of the custom functions. After I send this I am going to see if I can find the link.

Reply
Feb 24, 2013 19:26:12   #
Noela
 
Here's the link:
http://blog.photoframd.com/2010/01/06/canon-7d-tips-auto-focus-not-working-check-your-settings/

Reply
Feb 25, 2013 00:44:26   #
Larrie Loc: NE Ohio
 
Sounds like the sensor screen is slightly out of wack

Reply
Feb 25, 2013 11:04:44   #
RichardSM Loc: Back in Texas
 


Thanks much

Reply
Page <prev 2 of 2
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.
Main Photography Discussion
UglyHedgehog.com - Forum
Copyright 2011-2024 Ugly Hedgehog, Inc.