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Nikon DSLR Cameras
D750
D750: Unable to Clean Dust off Sensor
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<blockquote data-quote="voxmagna" data-source="post: 586368" data-attributes="member: 38477"><p><strong>Re: D750: Unable to Clean Dust off Sensor - some progress</strong></p><p></p><p>I've made some progress on sensor cleaning but I'm now a little concerned: When I got the problem in the field I didn't take much notice of what kind of 'dust' was on the sensor and only when I got a 4.5X illuminated magnifier could I spend more time. I've cleaned, blown, swabbed, blown and checked my work shooting my lcd monotor at f22 and opened up the test shots at X100 mag in PS. I defy anybody to get a perfect spot free sensor result, whatever cleaning method they use! I think F11 will be my aperture of choice in future and I'll fit ND filters if I have to.</p><p></p><p>I got a pretty clean sensor (not 100% perfect spot free, but I can't see that is realistically possible and would remain so) then dropped the mirror and fired off a few shots, went back and looked at the sensor which now had 'foreign bodies' on it. I looked carefully and they weren't the round grey dust particles or hairs I might expect, but 1 or 2 black wiggly filaments.</p><p></p><p>My D750 mirror compartment is lined with a black non-light reflective material. It recently came back from its shutter recall and I don't know what that involved (?) When I got it back they said they had cleaned it for free. What I saw on the sensor (and through the illuminated magnifier) was black filaments which could only have come from the material used inside the camera body. I accept the common DSLR problem of dust getting in from outside although I don't often change lenses, but black filaments falling on the sensor from inside the camera is not what I expected. During sensor cleaning I was very careful not to touch the lining as I could see it had a coarse fiber surface.</p><p></p><p>Have Nikon always used this coarse anti reflection stick on stuff in their cameras? I can see an area where it is cut away for the mirror hinge and the cut has left long filaments hanging loose which I could pull off with tweezers although a few mirror slaps and they will probably will fall off!</p><p></p><p>If your D750 is like mine and you get 'sensor dust', have a look at it with a magifier and if it is jet black you can guess where it might have come from. After cleaning your sensor, fire off a few shots then go back and check it has stayed clean. If you see 'dust' on images in post that is highly visible and curly, don't assume it is a hair from outside and just one of those things you get with a DSLR.</p></blockquote><p></p>
[QUOTE="voxmagna, post: 586368, member: 38477"] [b]Re: D750: Unable to Clean Dust off Sensor - some progress[/b] I've made some progress on sensor cleaning but I'm now a little concerned: When I got the problem in the field I didn't take much notice of what kind of 'dust' was on the sensor and only when I got a 4.5X illuminated magnifier could I spend more time. I've cleaned, blown, swabbed, blown and checked my work shooting my lcd monotor at f22 and opened up the test shots at X100 mag in PS. I defy anybody to get a perfect spot free sensor result, whatever cleaning method they use! I think F11 will be my aperture of choice in future and I'll fit ND filters if I have to. I got a pretty clean sensor (not 100% perfect spot free, but I can't see that is realistically possible and would remain so) then dropped the mirror and fired off a few shots, went back and looked at the sensor which now had 'foreign bodies' on it. I looked carefully and they weren't the round grey dust particles or hairs I might expect, but 1 or 2 black wiggly filaments. My D750 mirror compartment is lined with a black non-light reflective material. It recently came back from its shutter recall and I don't know what that involved (?) When I got it back they said they had cleaned it for free. What I saw on the sensor (and through the illuminated magnifier) was black filaments which could only have come from the material used inside the camera body. I accept the common DSLR problem of dust getting in from outside although I don't often change lenses, but black filaments falling on the sensor from inside the camera is not what I expected. During sensor cleaning I was very careful not to touch the lining as I could see it had a coarse fiber surface. Have Nikon always used this coarse anti reflection stick on stuff in their cameras? I can see an area where it is cut away for the mirror hinge and the cut has left long filaments hanging loose which I could pull off with tweezers although a few mirror slaps and they will probably will fall off! If your D750 is like mine and you get 'sensor dust', have a look at it with a magifier and if it is jet black you can guess where it might have come from. After cleaning your sensor, fire off a few shots then go back and check it has stayed clean. If you see 'dust' on images in post that is highly visible and curly, don't assume it is a hair from outside and just one of those things you get with a DSLR. [/QUOTE]
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D750: Unable to Clean Dust off Sensor
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