Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Sony Alpha dSLR / Konica Minolta dSLR, Sony SLT

Reply
 
Thread Tools Search this Thread
Old Mar 4, 2009, 9:46 PM   #1
Senior Member
 
Join Date: Jan 2007
Location: Decatur, GA
Posts: 2,053
Default

I have the Sony A200 notice some dots on my images at the upper right corner of the image when shoting into the sky or other light white-white colors. Sort of brownish-grey in color. Just notice it in the last two days of shooting I did. How can I best clean off these dots off the image sensor or whatever filter is over the sensor. I tried a blower and I also tried the internal cleaning mode.

Any ideas or thoughts. Is this something I can do myself or do I need to send it to someone? Is their something I can buy at Best Buy or from bhphotovideo to do the job........

Any advice appeciated.

dave
Photo 5 is offline   Reply With Quote
Sponsored Links
Old Mar 4, 2009, 10:12 PM   #2
Senior Member
 
antony's Avatar
 
Join Date: Mar 2007
Location: Sydney, Australia
Posts: 182
Default

The dirt might be on the lens. Have you tried cleaning both ends of the lens? And any filters you might have on your lens?
antony is offline   Reply With Quote
Old Mar 5, 2009, 6:09 AM   #3
Super Moderator
 
Mark1616's Avatar
 
Join Date: Oct 2005
Posts: 7,397
Default

There is a good job it is sensor dust and one of the best ways to go about it is by using something like

http://www.bhphotovideo.com/c/produc....html#features

I've not gone down the route of swabs or anything as a blower has always done the trick.

Often you can spot the dust on the sensor but remember that it is opposite to where you see it on the photo.
Mark1616 is offline   Reply With Quote
Old Mar 5, 2009, 6:48 AM   #4
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,544
Default

I've used these with much success: http://www.bhphotovideo.com/c/produc...r_6_pack_.html

Good luck.
TCav is offline   Reply With Quote
Old Mar 5, 2009, 8:31 AM   #5
Senior Member
 
Join Date: Jan 2007
Location: Decatur, GA
Posts: 2,053
Default

I have already used a blower with no results. I think it somehow is smugged onto the glass/sensor.

I clean both ends of both lenses and the UV filter. That did not solve the issue at all.

Thanks for the advice so far

dave
Photo 5 is offline   Reply With Quote
Old Mar 5, 2009, 8:40 AM   #6
Super Moderator
 
Mark1616's Avatar
 
Join Date: Oct 2005
Posts: 7,397
Default

I would give TCav's suggestion a try in that case.
Mark1616 is offline   Reply With Quote
Old Mar 5, 2009, 9:40 AM   #7
Senior Member
 
Join Date: Jan 2007
Location: Decatur, GA
Posts: 2,053
Default

Thanks Mark I will do that. I think it maybe something having to do with the fact that day before this happened I was photographing a fire and had to change the lens. Smoke may have gotten to the sensor. I was careful not to try to expose it to smoke (held the camera downward away from the source and with my back to the source, also afterwards I cleaned all the lenses well both front and back) but I think it might have happened. I learned my lesson not to change lenses around fire-smoke etc. It was my bad as I had the very wide lens on and need telezoom in a hurry.

Thanks again for all your advice for this post and all the others you reply to.

dave
Photo 5 is offline   Reply With Quote
Old Mar 5, 2009, 10:12 AM   #8
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,544
Default

Photo 5 wrote:
Quote:
Thanks Mark I will do that. I think it maybe something having to do with the fact that day before this happened I was photographing a fire and had to change the lens. Smoke may have gotten to the sensor. ...
That sounds like a good argument for a second body.
TCav is offline   Reply With Quote
Old Mar 5, 2009, 8:30 PM   #9
Senior Member
 
Join Date: Jan 2007
Location: Decatur, GA
Posts: 2,053
Default

I am hoping to do that when the budget premits.

Thanks to all for the advice

dave
Photo 5 is offline   Reply With Quote
Old Mar 6, 2009, 2:36 AM   #10
Senior Member
 
NewsyL's Avatar
 
Join Date: Jul 2004
Location: Vancouver, BC Canada
Posts: 231
Default

Use the f22 white screen trick for reliable detection of dirt on the sensor.

http://www.cleaningdigitalcameras.com/
- see the "Inspecting for Dust" section

http://www.copperhillimages.com/index.php?pr=tutorials

I've had to clean my sensor 4 times including one wet clean since I bought the camera in mid-January. It's dirty again but not badly, only 6 or so visible spots.

I think a lot of this has to do with the Sigma 50-500 and the long zoom acting as a bellows.

I use these:
- Hurricane Blower
- Lenspen SensorKlear Pen
- SensorSwab wet clean kit w/ Eclipse2 solution for the A700's tin oxide sensor.

http://www.photosol.com/products.htm
http://www.lenspen.com/403/377/
NewsyL is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 4:46 AM.