Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
04-24-2007, 06:11 PM   #1

A safe way to clean Pentax Lenses

Hi, I wanna to buy a liquid to clean lenses, but Iīm afraid of a aggression to the SMC coating.

Every brand uses a different coating, and each one of this coatings can be safely clean with a certain substance. I mean, for example, ammonia can be perfectly safe to clean determinate kind of coating, but can extremely aggressive with another.

Is there any know liquid safe to clean Pentax lenses, without risk to the SMC?


04-24-2007, 09:17 PM   #2
Site Supporter
Site Supporter
jamesk8752's Avatar

Join Date: Dec 2006
Location: Suburban Detroit, MI, USA
Posts: 235
The SMC coating is a lot less sensitive to solvents than you imagine. It's an inorganic coating and is not attacked by solvents. A solution of alcohol and water is perfectly safe to use as a cleaning liquid; that is what most commercial lens cleaners contain.

Of greater concern should be the possibility of scratching the coating by using an abrasive cloth or paper to clean the lens. A cloth with abrasive dirt on it is also a potential source of damage. Use only a soft clean cloth, preferably the microfiber type designed for cleaning optics, or a piece of lens tissue, wetted with a small amount of cleaning liquid, and wipe the lens gently - do not scrub it!

Overcleaning/too frequent cleaning should be avoided. A little dust on a lens will not harm the image.
04-25-2007, 10:39 AM   #3

Thank you jamesk8752.

I was really concerned about this...

If you donīt mind, What's a colormonger do?

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
lenses, pentax, smc, tripod
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
How to clean lenses tehSancho Pentax SLR Lens Discussion 10 07-25-2010 01:49 PM
How do you guys clean the old Pentax MF lenses? ducdao Pentax SLR Lens Discussion 7 05-24-2010 04:22 PM
How do you clean your lenses / filters - LensPen? jaz Pentax SLR Lens Discussion 11 07-14-2009 05:02 PM
what can I use to clean lenses simons-photography Photographic Technique 32 10-22-2008 12:21 AM
SMC coating. How to clean Pentax lenses? Edvinas Pentax SLR Lens Discussion 7 10-27-2007 04:44 AM

All times are GMT -7. The time now is 11:41 AM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]