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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 04 May 2015 (Monday) 11:48
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FUNGUS at camera sensor?! Here is the solution!

 
StarJack
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May 06, 2015 00:48 |  #16

My goodness, nicely done!


Regards,
Steve

  
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thatquietboy
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May 06, 2015 05:33 |  #17

Excellent work!




  
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Aswald
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May 06, 2015 05:47 |  #18

Wow....some skill you got there.

What solution did you use to clean the sensor? And do you need to use a new bottle every time?




  
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Mathmans
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May 06, 2015 08:29 as a reply to  @ Aswald's post |  #19

Sapien;
I can see you are familiar with DSLR cameras – how they work and all that stuff.
My question is somehow off topic but I would like to ask you, if you have ever adjust the focusing module with three screws, which are below the bottom cover of the camera.
Suppose that you have an older camera and the far right focusing point is 'on the spot', the middle focusing point gives still somehow acceptable focus and the far left focusing point gives some back focus.
This would indicate that the focusing module is displaced on the right side.
I suppose I would have to adjust the screws just on the right side (turn the screw clock wise) to align the focusing module back in the original position.
Am I right?
Thanks fort he answer.


My photos:
https://www.flickr.com​/photos/149610703@N05/ (external link)

  
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CyberDyneSystems
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May 06, 2015 08:55 |  #20

MAthmans, have you seen this old thread;
https://photography-on-the.net/forum/showthre​ad.php?t=345457

this was of course pre "MFA" adjustment.


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Submariner
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May 06, 2015 15:15 |  #21

As you are a genius meant sincerely , why not go and work for canon and get an employee discount lol!


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Mathmans
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May 07, 2015 02:34 as a reply to  @ Submariner's post |  #22

Thanks for the link Cyber but I think this would not work for my example. There are two screws in the mirror chamber. One is for tilting manual focusing mirror and the other to tilt AF focusing mirror. The catch is that with those screws you can only tilt the mirrors verticaly and I would need to tilt them horizontaly.
The other catch with this method is that, if you set the center focusing point, the upper and bottom focusing points will be off. Or to put it another way; if the camera gives you the same amount of back focus on all focusing points, you would have to move the AF mirror in straight line and not tilt it – path B must have the same lenght as path C.
Here is a link with picture and explanation:
http://leongoodman.tri​pod.com/d70focus.html (external link)

In my example most right focusing column gives me spot on focus, center focusing column gives me a little back focus and far left focusing column gives me some more back focus. The focus is changing from ''good'' to ''not so good'' evenly from right to left side of the focusing points.
In my case, path C is longer on the left side.
In theory I would need to move the AF module just on one side to repair this - with three screws at the bottom of the camera. Those screws hold AF module. They are spring loaded and are used for hard adjusting the position of the AF module.
That's why I was asking sapien if he has done this and he could give me some advice.


My photos:
https://www.flickr.com​/photos/149610703@N05/ (external link)

  
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serrow
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May 07, 2015 16:48 |  #23

crazy. i would lose a screw




  
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FUNGUS at camera sensor?! Here is the solution!
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
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