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| Would you clean your sensor with a gummy bear? Maybe - Page 1 | |
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| Posted: Mon Feb 3rd, 2014 15:41 |
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1st Post |
TomOC
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Check this out... http://photographylife.com/product/sensor-gel-stick There is a video on PP that shows it being used as one of the last steps in the assembly of a Leica M9. I think I'll get one and see if it works...on my D40 for starters... What do you think? Am I nuts?
____________________ Tom O'Connell -Lots of people talk to animals.... Not very many listen, though.... That's the problem. Benjamin Hoff, The Tao of Pooh |
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| Posted: Mon Feb 3rd, 2014 17:45 |
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2nd Post |
Eric
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TomOC wrote:Check this out... I liked the quick pop up warning for D600 owners..'removes dust but not oil' I might try one as I have a stubborn spec or two on the D3 and the swabs are very expensive when you have to keep reswabbing. My only concern, which is arguably the same with swabs, getting right up to the edges of the sensor. Never sure if the edge of the capture area is narrower than the sensor area to enable an edge that doesnt show?
____________________ Eric |
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| Posted: Tue Feb 4th, 2014 02:33 |
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3rd Post |
Robert
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I seem to remember there was a similar device some years ago, Pec Pen? which had a sticky tip for removing stubborn bunnies, I think it came with a magnifier which fitted the lens mount. Why not measure the size of the low pass filter Eric, the actual capture size is specified for each camera. If you cut two strips of clean paper the exact width and height specified and use them to compare with the size of the frame aperture around the LPF that should tell you how much over size it is, if at all, or even use an old slide or negative trimmed to size? My expectation would be that the LPF aperture will be slightly bigger than the capture size, although depending on size of the rear element of the lens and it's distance from the sensor, the demand for the LPF frame aperture size will vary, the light rays approach the sensor in the form of a cone, just like the cone (pyramid?) of light from a projector lens to a cinema screen. So the smaller and closer the rear element is the the sensor the more unused margin there will be at the edges of the frame of the LPF. Remember the LPF frame is some distance, maybe four or five mm? from the focal plane, that is the sensor.
____________________ Robert. |
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| Posted: Tue Feb 4th, 2014 11:37 |
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4th Post |
amazing50
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Thanks for the link, the whole site is interesting.
____________________ There is nothing worse than a sharp image of a fuzzy concept ;~) Mike Grace |
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| Posted: Tue Feb 4th, 2014 13:09 |
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5th Post |
TomOC
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Eric wrote:TomOC wrote: The edge issue is the first thing that came to mind for me as well. If you look at the enlarged images of the "cleaned" sensor, they show a completely spotless edge to edge sensor. THAT scared me a little. As I'm sure you have, I've getting pretty good at painfully cleaning sensors over the years but almost never do I get one quite that clean...ever! So they are either BSing us or the thing is a miracle. My guess is that they tested at a fairly wide open aperture...which is fine but they should say so. I've ordered one and will test on the old D40 (hell, I've practically spit on the damn thing to clean it from time to time  this can't be that bad...
____________________ Tom O'Connell -Lots of people talk to animals.... Not very many listen, though.... That's the problem. Benjamin Hoff, The Tao of Pooh |
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| Posted: Tue Feb 4th, 2014 13:37 |
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6th Post |
jk
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Good luck Tom. Certainly wont be testing on any of my new Nikons or Fujis.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Tue Feb 4th, 2014 16:16 |
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7th Post |
Eric
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Surely it can be tried on a screw in filter first? They get dust specs too...and working on a surface not buried inside a camera will make it easier and safer to assess first. 
____________________ Eric |
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| Posted: Tue Feb 4th, 2014 18:48 |
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8th Post |
TomOC
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Good idea, Eric. But to really see what's up, you have to stop down and shoot a blue sky and then blow up the image and add some contrast, no?
____________________ Tom O'Connell -Lots of people talk to animals.... Not very many listen, though.... That's the problem. Benjamin Hoff, The Tao of Pooh |
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| Posted: Wed Feb 5th, 2014 07:21 |
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9th Post |
Eric
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I stop down to f16, shoot one of the bare walls in my office wall (cream) and open the file in PS. Sometimes hitting >Equalise will show up irregularities even more.
____________________ Eric |
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| Posted: Fri Feb 7th, 2014 07:58 |
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10th Post |
amazing50
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I just tried one of those gummy electrode pads that are used with skin stimulator (tens) machines on a filter. It cleaned off the dust and left it smug free. My D600 sensor hasn't needed a cleaning in a year so I'll have to wait.
____________________ There is nothing worse than a sharp image of a fuzzy concept ;~) Mike Grace |
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