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Oil spotlets on sensor filters

Bert Shelton

Glenview, US
44 posts

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"Oil spotlets on sensor filters"

Bert Shelton Registered since 19th Jun 2012
Sat 01-Sep-12 04:00 PM | edited Sat 01-Sep-12 05:17 PM by Bert Shelton

One problem all my Nikon DSLR bodies develop is spot marks on the sensor filter. I do not mean with the usual nuisance, dust particles, but microscopic circular grey spots which, when viewed on a computer monitor at 100% are about the diameter of a pea. The longer they are left unattended, the sharper edged and more dried-out they look. I suspect these spots are from oil spray thrown off by an over lubricated shutter mechanism, but that is a guess.

I remove these spots with difficulty using VisibleDust orange swabs and VDust Formula (which is multi-ingredient and isopropanol based), but even after using several (expensive) swabs, I can see, by directly viewing the sensor in a good light, that there is a light smearing still visible broadly across the filter surface.

I have never seen this oil spotting problem mentioned anywhere, but others must surely have experienced it. If anyone has a procedure for cleaning off these oil spots completely, I would be most grateful to hear it.

Many thanks!

A general, generic topic Oil spotlets on sensor filters [View all] , Bert Shelton , Sat 01-Sep-12 02:00 PM
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