How to prevent/clean dirt on lens at DVinfo.net

David Dice · October 20th, 2010, 03:46 PM

Ok, I'd like ideas on how to do this. I shoot a lot of outdoor stuff, usually with the lens at wide angle (currently a Canon HXA1s, but this really applies to any small chip camera). I constantly fight with tiny specks of dirt on the lens, usually right in the middle of the sky or clouds, so that it's extremely obvious. The dust is generally too small to see, and I really do try to keep my lens covered when not in use, and clean, but it very often shows up.

Anyone have any good ideas on how to keep the lens clean to begin with, best methods of cleaning, etc.? I usually open the lens up to minimize depth of field on wide angle shots as well, but maybe there's some obvious way to avoid this that i haven't thought of.

Thanks.

John Wiley · October 20th, 2010, 05:00 PM

A decent UV/skylight filter is your best option for keepnig the lens itself clean. While you're still going to get dust on the filter, you can feel much safer about wiping it and cleaning it regularly, even while you are in the field, knowing that if you scratch it you're not going to need to replace the whole lens for $2000! Also, because the filter is less recessed than the actual lens it makes it easier to see properly and to and inspect it for dirt.

I shoot alot of surfing so salt mist is a constant problem on the beach. I just use a clear skylight filter all the time and clean it regularly with a lens tissue & lens cleaner solution.

Heiko Saele · October 23rd, 2010, 06:43 PM

Quote:

Originally Posted by John Wiley

A decent UV/skylight filter is your best option for keepnig the lens itself clean.

Well, but a UV filter (or any filter) is also another plane of glass that accumulates dust and stuff - and usually you see that a lot more in your footage than if the dust is directly on your lens...
I never managed to get a good shot against the light with a filter on the lens - at least not as good as without the respective filter.

I always try to keep my lenses as clean as possible with a lens brush and cleaning paper. It is better than any kind of cloth because you're always using a fresh piece and there is no fuzz/lint from it.

Dean Sensui · October 25th, 2010, 02:17 AM

With exposure to salt air and spray, I use microfiber lens cleaning cloths.

I have several on hand and launder them when they get dirty. There's also a cleaning spray that I apply to the cleaning cloths to help clear anything that might smudge the lens.

This doesn't scratch the element nor does it damage the coating.

Bredly Root · October 26th, 2010, 08:31 AM

thanks for useful information...

Jim Snow · October 26th, 2010, 11:14 AM

You should remove as must dust and debris from the lens with air first. Some of the dust is abrasive and if you rub it, no matter how soft the cloth is, it can make small scratches on the lens. It doesn't take much of a scratch to be visible when the light is shining into the lens.

October 20th, 2010, 03:46 PM	#1
David Dice Tourist Join Date: Feb 2006 Posts: 4	How to prevent/clean dirt on lens Ok, I'd like ideas on how to do this. I shoot a lot of outdoor stuff, usually with the lens at wide angle (currently a Canon HXA1s, but this really applies to any small chip camera). I constantly fight with tiny specks of dirt on the lens, usually right in the middle of the sky or clouds, so that it's extremely obvious. The dust is generally too small to see, and I really do try to keep my lens covered when not in use, and clean, but it very often shows up. Anyone have any good ideas on how to keep the lens clean to begin with, best methods of cleaning, etc.? I usually open the lens up to minimize depth of field on wide angle shots as well, but maybe there's some obvious way to avoid this that i haven't thought of. Thanks.

October 25th, 2010, 02:17 AM	#4
Dean Sensui Inner Circle Join Date: Oct 2001 Location: Honolulu, HI Posts: 2,054	With exposure to salt air and spray, I use microfiber lens cleaning cloths. I have several on hand and launder them when they get dirty. There's also a cleaning spray that I apply to the cleaning cloths to help clear anything that might smudge the lens. This doesn't scratch the element nor does it damage the coating. __________________ Dean Sensui Exec Producer, Hawaii Goes Fishing

October 20th, 2010, 05:00 PM	#2
John Wiley Trustee Join Date: Oct 2008 Location: Byron Bay, Australia Posts: 1,155	A decent UV/skylight filter is your best option for keepnig the lens itself clean. While you're still going to get dust on the filter, you can feel much safer about wiping it and cleaning it regularly, even while you are in the field, knowing that if you scratch it you're not going to need to replace the whole lens for $2000! Also, because the filter is less recessed than the actual lens it makes it easier to see properly and to and inspect it for dirt. I shoot alot of surfing so salt mist is a constant problem on the beach. I just use a clear skylight filter all the time and clean it regularly with a lens tissue & lens cleaner solution.

October 26th, 2010, 08:31 AM	#5
Bredly Root New Boot Join Date: Oct 2009 Location: USA Posts: 18	thanks for useful information...

October 26th, 2010, 11:14 AM	#6
Jim Snow Trustee Join Date: Mar 2009 Location: Santa Clara, CA Posts: 1,104	You should remove as must dust and debris from the lens with air first. Some of the dust is abrasive and if you rub it, no matter how soft the cloth is, it can make small scratches on the lens. It doesn't take much of a scratch to be visible when the light is shining into the lens.