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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 02 Mar 2014 (Sunday) 22:40
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Sensor - Test Shot

 
wysiwyg59
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Mar 02, 2014 22:40 |  #1

I purchased my Canon 7D in Sept '09 and today I took this shot of the sky to look for dust spots.

I could not see any spots, maybe my settings are wrong for a test like this.

ISO100
F2.8
1/5000 second

IMAGE: http://i305.photobucket.com/albums/nn207/wysiwyg77/_MG_2540_zpsb465291e.jpg
IMAGE LINK: http://s305.photobucke​t.com …2540_zpsb465291​e.jpg.html  (external link)

Rick
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1Tanker
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Mar 02, 2014 22:58 |  #2

Yes, they are wrong. Shoot at f/22. ;)


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-AP-
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Mar 02, 2014 23:01 as a reply to  @ 1Tanker's post |  #3

^^^+1^^^


WEBSITE (external link) | FACEBOOK (external link) | Canon 5d3 | SX50 HS | 7D2 |70-200L | 24-70L | 50mm f1.4 | YN-622c | Bunch of lights, a few more lenses and lots of other stuff..

  
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wysiwyg59
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Mar 02, 2014 23:11 |  #4

This photo was shot @ f/32

I looked at different sites and they stated shoot at f/32 if possible

ISO 100, f/32, 1/40 second

IMAGE: http://i305.photobucket.com/albums/nn207/wysiwyg77/_MG_2540_zpsb465291e.jpg
IMAGE LINK: http://s305.photobucke​t.com …2540_zpsb465291​e.jpg.html  (external link)

Rick
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-AP-
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Mar 02, 2014 23:16 as a reply to  @ wysiwyg59's post |  #5

Looks good..:)


WEBSITE (external link) | FACEBOOK (external link) | Canon 5d3 | SX50 HS | 7D2 |70-200L | 24-70L | 50mm f1.4 | YN-622c | Bunch of lights, a few more lenses and lots of other stuff..

  
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1Tanker
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Mar 02, 2014 23:39 as a reply to  @ -AP-'s post |  #6

Damn, mine doesn't look that clean at 2.8! :lol:


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bumpintheroad
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Mar 03, 2014 00:45 |  #7

My monitor is dirtier than your sensor. Time for a cleaning.


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xarqi
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Mar 03, 2014 00:53 |  #8

That's the same image.

Are you familiar with the pros and cons of using aRGB colour-space?




  
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Snowyman
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Mar 03, 2014 02:07 |  #9

^^ That is definitely the same image and there is little chance that any one here viewing it at that resolution can determine if your sensor is actually clean.


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Nicholas ­ R.
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Mar 03, 2014 06:09 |  #10

Snowyman wrote in post #16730584 (external link)
^^ That is definitely the same image and there is little chance that any one here viewing it at that resolution can determine if your sensor is actually clean.

The exif data has been removed from that shot for some reason.

But if it is f/32, run auto-levels and it's the cleanest sensor I've ever seen :eek:

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Snowyman
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Mar 03, 2014 06:20 |  #11

Exif data from image 1 says it is file: i305.photobucket.com/a​lbums/nn207/wysiwyg77/​_MG_2540_zpsb465291e.j​pg

Exif data from image 2 says it is file: i305.photobucket.com/a​lbums/nn207/wysiwyg77/​_MG_2540_zpsb465291e.j​pg


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Nicholas ­ R.
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Mar 03, 2014 06:23 |  #12

Snowyman wrote in post #16730805 (external link)
Exif data from image 1 says it is file: i305.photobucket.com/a​lbums/nn207/wysiwyg77/​_MG_2540_zpsb465291e.j​pg

Exif data from image 2 says it is file: i305.photobucket.com/a​lbums/nn207/wysiwyg77/​_MG_2540_zpsb465291e.j​pg

Yes, looks like the same image, but where is the camera data? It does look like a test-shot at f/2.8.




  
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wysiwyg59
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Mar 03, 2014 08:27 |  #13

Photo Bucket is playing around with my images they are not in order of hope I uploaded.

Canon 7D
70-200 f2.8L
3/2/2014
-9 air temp
Time around 10:30am

ISO 100, f/2.8, 1/5000 second

IMAGE: http://i305.photobucket.com/albums/nn207/wysiwyg77/f-28ISO1001-5000_zps8bf7165e.jpg
IMAGE LINK: http://s305.photobucke​t.com …5000_zps8bf7165​e.jpg.html  (external link)

ISO 100, f/32, 1/40 second
IMAGE: http://i305.photobucket.com/albums/nn207/wysiwyg77/f-32ISO1001-40_zps12923b41.jpg
IMAGE LINK: http://s305.photobucke​t.com …1-40_zps12923b41.jpg.htm​l  (external link)

Rick
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MakisM1
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Mar 03, 2014 09:00 |  #14

You 've got a few dustbunnies...


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Gerry
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Phototeacher
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Mar 03, 2014 09:06 |  #15

Yes, you do have some specks as seen in the shot by MakisM1 above. To get the screen he has shown you, use auto-levels in Photoshop. You might want to try something like the Rocket Blower to try blowing off the specks, but if you can't see them at f/32, then you probably can wait on doing a more thorough cleaning.




  
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Sensor - Test Shot
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