Put a few drops of windex-type glass cleaner or lens cleaning or alcohol on a microfiber cloth, wipe gently, and dry. You shouldn't need to do anything more. Using anything that seems remotely abrasive is abuse.
Put a few drops of windex-type glass cleaner or lens cleaning or alcohol on a microfiber cloth, wipe gently, and dry. You shouldn't need to do anything more. Using anything that seems remotely abrasive is abuse.
Yesturday I read the Deardorff Saga
They were polishing lenses a long time ago
before coatings
Tin Can
If your goal is for water to bead up into droplets, that would be as good as a wax. "Ceramic" seems very much like a 21st century buzzword and on car finishes is known to not have long-lasting durability unless extensive preparation efforts are employed.Originally Posted by Drew Bedo
What more than clean glass are you seeking; this kind of stuff won't fill scratches; scratches most likely will have no effect on image unless shooting into the sun????
^^^^
Well. . .I am exploring. The term, "Ceramic" implies hardness. I have a 150 year old unmarked Petzval on order and want to refurbish it as may be possible. The consensus here is for nothing to be done except cleaning.
Wouldn't think of doing anything to the glass of my mid-'80s era LF lenses: Caltar, Fujinon and Nikkor.
Drew Bedo
www.quietlightphoto.com
http://www.artsyhome.com/author/drew-bedo
There are only three types of mounting flanges; too big, too small and wrong thread!
The consensus is most likely the right answer, Drew. I’d put effort into finding a lens hood solution
...there was also the school of thought that filling a scratch with black ink would mitigate scratch-induced refractions. Never had a scratch deep enough on a lens to try this, but have on a filter and it seemed to help.
It works fine with big scratches but I do not know a trick to make the ink get into the small ones.
Taking Pictures Using a Lens With a Smashed Middle Element
There are many more examples
https://fstoppers.com/diy/taking-pic...element-407756
Tin Can
This is a good one too: Scratched Front Element, https://www.lensrentals.com/blog/200...ent-scratches/
(typically, rear element damage has worse effects than front element damage).
To get water to bead up on glass try https://www.rainx.com/original-glass-water-repellent/
Though, why anyone would care about water beading on a photographic lens is beyond me.
Darkroom Automation / Cleveland Engineering Design, LLC
f-Stop Timers & Enlarging meters http://www.darkroomautomation.com/da-main.htm
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