If you want to know how to clean a mirror or a lens, I suggest you read Dr.Clay’s article first.
I learned all these after I just did my second cleaning (just for fun) again. It’s totally not advisable to clean the optics without absolutely need.
- Don’t clean the mirror or lens if there is absolutely no need
- If you can clean the optics with very soft brush, do it. Afterthat, you judge whether it’s still necessary to clean the optics.
- Dr.Clay judges the capability of the brush by pushing the tiny ends of the bristles hard against the cheek of your face, if you don’t find it pricking, the brush is suitable for optical cleaning. I find this very good.
- I did my cleaning under 0 air flow condition (Fan turned off). I was worried about the dust got onto the surface again.
- Do the cleaning under bright light source condition so that you can see the stains or anything left on the surface of the optics.
- When cleaning, you are advised to clean the optics by doing rotational motion in one direction. Never ever reverse.
- Don’t rub, just softly press through.
- Everything is done softly, no pressure applied.
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