12-21-2011, 02:14 AM
[quote name='Brightcolours' timestamp='1324390412' post='13947']
1. Clean the lens with a soft lens brush. Blower is not needed or necessary, and it will blow dust onto the lens too, anyway.
2. Clean the lens with a microfiber lens cloth with a tiny amount of lens cleaning fluid sprayed into it. Cleaning without fluid seems weird, either it needs cleaning or it does not, and if it needs cleaning you WILL get smudges without.
With cleaning fluid you do not have to apply pressure at all, so never a chance of scratching even IF there would be a corn of sand somewhere.
3. Then softly wipe again with a dry part of the microfiber lens cleaning cloth.
Lens will be totally clean now.
Lens cleaning tissues which are dry are smudge monsters, in my experience. Lens cleaning tissues with lens cleaning fluid are very wet, find it hard to work with.
[/quote]
Thank you very much, BC. The way you suggested sounds reasonable. It also agrees with the following article: [url="https://www.schneideroptics.com/pdfs/whitepapers/lens_cleaning.pdf"]lens cleaning[/url], except that you said tissues are bad. I guess that people use tissues just because tissues are cheap and convenient: you can use a tissue once then discard it.
I wonder if it is necessary to clean the lens with cleaning fluid each time. If the glass does not look that dirty, why not try to wipe it with a cloth moistened by distilled water? Is distilled water bad for the glass? Frankly I am always nervous about chemical fluid for the caoting of the glass or other parts (e.g. plastics) of the lens.
Some people also recommended to use a "lens pen", but I never used it. What is your opinion on a lens pen?
Regards,
Frank
1. Clean the lens with a soft lens brush. Blower is not needed or necessary, and it will blow dust onto the lens too, anyway.
2. Clean the lens with a microfiber lens cloth with a tiny amount of lens cleaning fluid sprayed into it. Cleaning without fluid seems weird, either it needs cleaning or it does not, and if it needs cleaning you WILL get smudges without.
With cleaning fluid you do not have to apply pressure at all, so never a chance of scratching even IF there would be a corn of sand somewhere.
3. Then softly wipe again with a dry part of the microfiber lens cleaning cloth.
Lens will be totally clean now.
Lens cleaning tissues which are dry are smudge monsters, in my experience. Lens cleaning tissues with lens cleaning fluid are very wet, find it hard to work with.
[/quote]
Thank you very much, BC. The way you suggested sounds reasonable. It also agrees with the following article: [url="https://www.schneideroptics.com/pdfs/whitepapers/lens_cleaning.pdf"]lens cleaning[/url], except that you said tissues are bad. I guess that people use tissues just because tissues are cheap and convenient: you can use a tissue once then discard it.
I wonder if it is necessary to clean the lens with cleaning fluid each time. If the glass does not look that dirty, why not try to wipe it with a cloth moistened by distilled water? Is distilled water bad for the glass? Frankly I am always nervous about chemical fluid for the caoting of the glass or other parts (e.g. plastics) of the lens.
Some people also recommended to use a "lens pen", but I never used it. What is your opinion on a lens pen?
Regards,
Frank