Go Back  Bike Forums > The Lounge > Foo
Reload this Page >

Digital camera problems. Since y'all are awesome photogs, maybe you can help.

Foo Off-Topic chit chat with no general subject.

Digital camera problems. Since y'all are awesome photogs, maybe you can help.

Old 09-01-12, 04:06 PM
  #1  
The_DK
Senior Member
Thread Starter
 
The_DK's Avatar
 
Join Date: Dec 2011
Location: Sacramento
Posts: 243

Bikes: 2003 Trek 7300, 2012 CAAD 10 5

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Digital camera problems. Since y'all are awesome photogs, maybe you can help.

30D, about 6 years old.

Suddenly, it's overexposing everything.
I have to shoot full manual - the little meter at the bottom overestimates light severely. For example, it's at 0, when it's really +2.

So in any kind of automatic mode (such as Av) it overexposes like crazy.
I worried about my lens, but I bought a 5D MKII to test it out, and the lens is okay.

Has anyone run into this before?

Trying a firmware update...
The_DK is offline  
Old 09-01-12, 04:07 PM
  #2  
windhchaser 
Senior Member
 
Join Date: Jun 2012
Location: baned from foo so for sure im not there .
Posts: 618

Bikes: Felt nine flow

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 648 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
id guess there is soem sensor that detects light and it was dirty .but thats my guess
windhchaser is online now  
Old 09-01-12, 04:09 PM
  #3  
The_DK
Senior Member
Thread Starter
 
The_DK's Avatar
 
Join Date: Dec 2011
Location: Sacramento
Posts: 243

Bikes: 2003 Trek 7300, 2012 CAAD 10 5

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Hmn, if it was dirty, it would certainly think there's a lot less light than there actually is. I'm not sure if the metering is done in the CCD or if it's another piece entirely. Though this is a "fine 1 shot bad the next" kind of deal.
The_DK is offline  
Old 09-01-12, 04:55 PM
  #4  
chris.....
Banned.
 
Join Date: Mar 2009
Location: Southern Illinois
Posts: 2

Bikes: Cannondale Caad4, Schwinn moab

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by The_DK View Post
Hmn, if it was dirty, it would certainly think there's a lot less light than there actually is. I'm not sure if the metering is done in the CCD or if it's another piece entirely. Though this is a "fine 1 shot bad the next" kind of deal.
My 30 D had some problems with the shutter release which affected all of the exposure functions. The easy fix is to drop some contact cleaner down in to to battery compartment with the camera upside down. Then blow it out with a can of air. Make sure the contact cleaner is not one that will melt plastic.
chris..... is offline  
Old 09-01-12, 04:56 PM
  #5  
chris.....
Banned.
 
Join Date: Mar 2009
Location: Southern Illinois
Posts: 2

Bikes: Cannondale Caad4, Schwinn moab

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Also try resetting any custom functions.
chris..... is offline  
Old 09-01-12, 06:38 PM
  #6  
bjtesch
Senior Member
 
Join Date: Aug 2008
Location: Irving, TX
Posts: 358

Bikes: Schwinn Paramount

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Have you changed lenses by chance?

I owned a Nikon D70s and a Sigma 18-50 that worked real well. I bought a Nikon D300 body and the Sigma lens was not reliable with it. You could slowly zoom through the zoom range and watch the aperture jump by 1 or 2 EV at a consistent point in the middle of the zoom range. I had the lens contacts cleaned and that didn't help. I don't know if Canon lenses communicate with the body the same way but the body has to know what the aperture is for the lens so it can calculate exposure properly.

Another thing that could be an issue is the auto-aperture in the lens or maybe in the body. The lens probably has a pin that the body depresses to close the diaphragm during exposure but leave it open for focusing. If the body is moving the pin an inappropriate amount that could change the exposure significantly.

If your 30d is consistently exposing one way or the other you could simply set something like +2 or -2 and that should compensate for it.

I would recommend going to a bigger camera forum like the ones on dpreview.com and reearching your problem, maybe ask your question there.
bjtesch is offline  
Old 09-01-12, 11:28 PM
  #7  
avmanansala
Senior Member
 
avmanansala's Avatar
 
Join Date: Aug 2006
Location: Sacramento, CA
Posts: 401

Bikes: Cannondale Road Warrior

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Try a full reset. I have also heard that replacing the in camera clock battery helps correct some problems, but I've never done it.
avmanansala is offline  
Old 09-02-12, 07:06 AM
  #8  
patentcad
Peloton Shelter Dog
 
patentcad's Avatar
 
Join Date: Nov 2005
Location: Chester, NY
Posts: 90,393

Bikes: 2017 Scott Foil, 2016 Scott Addict SL, 2018 Santa Cruz Blur CC MTB

Mentioned: 68 Post(s)
Tagged: 2 Thread(s)
Quoted: 1013 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
'Y'all'?
__________________
http://www.cotsiscad.com
patentcad is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.