Checking sensor cleanliness
4,926 posts
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Posted 24/07/2009 - 21:21
I find the best is to go outside on a blue sky day and stop down to f22. Take a picture of the sky.
The key is to stop right down.
Peter
My Flickr page
The key is to stop right down.
Peter
My Flickr page
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Posted 24/07/2009 - 21:49
Don;t know about aperture but a blank canvas, such as a wall, helps.
If the subject has any marks they may show up on the screen as dust, I know, I tried to remove the wallpaper pattern from MY sensor!
Cheers, HG
K110+DA40, K200+DA35, K3 and a bag of lenses, bodies and other bits.
Mustn't forget the Zenits, or folders, or...
I've some gallerieshere CLICKY LINK! and my PPG entries.
If the subject has any marks they may show up on the screen as dust, I know, I tried to remove the wallpaper pattern from MY sensor!
Cheers, HG
K110+DA40, K200+DA35, K3 and a bag of lenses, bodies and other bits.
Mustn't forget the Zenits, or folders, or...
I've some gallerieshere CLICKY LINK! and my PPG entries.
Link
Posted 24/07/2009 - 22:04
Hardgravity wrote:
I know, I tried to remove the wallpaper pattern from MY sensor!
I know, I tried to remove the wallpaper pattern from MY sensor!
LOL!!
That is funny
Probably wasn't at the time though
Getting there! Thanks to you guys
Pentax K10d, *istDL, Kit lens ( 18-55mm ), 50mm f1.7 lens, Tamron 70-300mm lens, Prinzflex 70-162 manual lens, Various old flashes.
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Posted 24/07/2009 - 22:31
I was so worried I had to go and have a Large G'n'T!
It looked much better afterwards.
Cheers, HG
K110+DA40, K200+DA35, K3 and a bag of lenses, bodies and other bits.
Mustn't forget the Zenits, or folders, or...
I've some gallerieshere CLICKY LINK! and my PPG entries.
It looked much better afterwards.
Cheers, HG
K110+DA40, K200+DA35, K3 and a bag of lenses, bodies and other bits.
Mustn't forget the Zenits, or folders, or...
I've some gallerieshere CLICKY LINK! and my PPG entries.
Link
Posted 24/07/2009 - 23:46
Hardgravity wrote:
I was so worried I had to go and have a Large G'n'T!
I was so worried I had to go and have a Large G'n'T!
If I photograph the wallpaper, can I have a G'n'T
Link
Posted 25/07/2009 - 09:05
pschlute wrote:
I find the best is to go outside on a blue sky day and stop down to f22.
I find the best is to go outside on a blue sky day and stop down to f22.
And in the UK?
G
Keywords: Charming, polite, and generally agreeable.
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Posted 25/07/2009 - 09:23
George Lazarette wrote:
And in the UK?
G
pschlute wrote:
I find the best is to go outside on a blue sky day and stop down to f22.
I find the best is to go outside on a blue sky day and stop down to f22.
And in the UK?
G
Well , that's what the polariser is for of course George. !!
Peter
My Flickr page
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Posted 25/07/2009 - 09:36
pschlute wrote:
Well , that's what the polariser is for of course George. !!
George Lazarette wrote:
And in the UK?
G
Quote:
I find the best is to go outside on a blue sky day and stop down to f22.
I find the best is to go outside on a blue sky day and stop down to f22.
And in the UK?
G
Well , that's what the polariser is for of course George. !!
It is?
I thought they were for putting coffee cups on!
Cheers, HG
K110+DA40, K200+DA35, K3 and a bag of lenses, bodies and other bits.
Mustn't forget the Zenits, or folders, or...
I've some gallerieshere CLICKY LINK! and my PPG entries.
Link
Posted 03/08/2009 - 18:12
I always remove the lens select B mode and take a picture of something white (white computer screen) move the camera while taking picture to ensure that only dust on the sensor screen shows up
Good luck
Bob
Pentax user since 1978, Digital since 1997.
Kit includes: K-7, K20D, K10D, *istDS, full set DA* lens, etc
Good luck
Bob
Pentax user since 1978, Digital since 1997.
Kit includes: K-7, K20D, K10D, *istDS, full set DA* lens, etc
Link
Posted 03/08/2009 - 22:18
I use the smallest aperture, defocus the camera and aim at a white wall or ceiling, and make sure my hands are nice and unsteady on a long exposure . That way I know anything I see is on the sensor.
My Photobucket
My Photobucket
Link
Posted 03/08/2009 - 22:29
I'm a sky man myself!....doesn't have to be blue....grey works just as well!.....good job!
K20D...ist DS ,DA18/55,DA16/45.DA* 50/135,"A"1.7 50MM..."A" 70/210..M 50mm f2...Tamron 90mm macro,28/300 Tamron,200/500 Tamron 6.9....A Pentax DA*300... Sigma10/20,FA31mm 1.8 Ltd*********,FA 77mm Ltd!
K20D...ist DS ,DA18/55,DA16/45.DA* 50/135,"A"1.7 50MM..."A" 70/210..M 50mm f2...Tamron 90mm macro,28/300 Tamron,200/500 Tamron 6.9....A Pentax DA*300... Sigma10/20,FA31mm 1.8 Ltd*********,FA 77mm Ltd!
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Father Ted
Member
Wirral
Should I take photos of a blank sheet of paper etc?
Do I focus on the paper, do I have aperture open or closed etc?
Cheers!
Getting there! Thanks to you guys
Pentax K10d, *istDL, Kit lens ( 18-55mm ), 50mm f1.7 lens, Tamron 70-300mm lens, Prinzflex 70-162 manual lens, Various old flashes.