Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-17-2010, 07:43 PM   #1
Veteran Member
future_retro's Avatar

Join Date: Jun 2010
Location: Western Washington
Posts: 572
DA WR lenses dust magnets?

I can't seem to keep dust off the front elements of my WR lenses for more than a few seconds, while my DAL is surprisingly clean and resilient, both are being used and stored in the same conditions.

I only have the 3 lenses in my signature. My DAL is a few months old, and has been throughly cleaned with the scrubbing end of a lenspen quite regularly. The two WR lenses were opened 8 days ago and have only been touched with with the brush end of the lenspen and not the scrub end, basically in the same condition they came out of the box.

Why is this happening? I understand that lenses have coatings, did I wipe the coating off of the DAL and thus dust has less to stick to?

07-17-2010, 07:47 PM   #2
Pentaxian
Ratmagiclady's Avatar

Join Date: Nov 2008
Location: GA
Photos: Gallery | Albums
Posts: 13,464
Sounds like static may be involved.
07-17-2010, 07:57 PM   #3
Veteran Member
future_retro's Avatar

Join Date: Jun 2010
Location: Western Washington
Posts: 572
Original Poster
is there a solution for that?
07-17-2010, 08:26 PM   #4
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,485
What do you mean by "Scrubbing"?



07-17-2010, 08:38 PM   #5
Veteran Member
future_retro's Avatar

Join Date: Jun 2010
Location: Western Washington
Posts: 572
Original Poster
QuoteOriginally posted by JeffJS Quote
What do you mean by "Scrubbing"?

Cleaning tip I guess what's it's called? the side that's not the retractible brush
07-17-2010, 08:53 PM   #6
Veteran Member
alohadave's Avatar

Join Date: Jan 2008
Location: Quincy, MA
Photos: Gallery | Albums
Posts: 2,024
QuoteOriginally posted by future_retro Quote
Why is this happening? I understand that lenses have coatings, did I wipe the coating off of the DAL and thus dust has less to stick to?
It is highly unlikely that you removed the lens coating with your lenspen.

Don't worry about the dust. It will not have any effect on your pictures and will not be noticeable in your pictures, and you will not even be able to see it in your viewfinder.
07-17-2010, 09:32 PM   #7
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,210
QuoteQuote:
Sounds like static may be involved.
QuoteOriginally posted by future_retro Quote
is there a solution for that?
Ditch the polyester leisure suits...


Seriously though, static may be a contributing factor as might a dusty environment. In any case, you need not be too spastic about a little dust. The best thing for any lens is to avoid cleaning, rubbing, scrubbing, etc.. Here is the order to work from first resort to last resort:
  1. Rocket blower
  2. Clean microfiber or lens tissue (use breath to moisten lens surface and use VERY light pressure in a circular motion)
  3. Water-based lens cleaning solution with lens tissue
  4. Lens cleaning pens and such (last resort)
The blower should be adequate for most dust. A few specs here and there really don't do that much harm anyway. Light finger prints will usually yield to a microfiber cloth. Sticky finger prints or gross oil contamination will usually require lens cleaning solution. I honestly don't know when I would use any solvent or abrasive based product. Always be gentle and never scrub. There is a wide variability in the hardness of lens coatings and some are quite fragile. Some types of optical glass are similarly very soft.

One special case is salt spray. Filters should be removed and flushed liberally with fresh water to dissolve the salt. If you get the spray on the lens itself, use a series of saturated lens tissue wads followed by dryer wads to move the salt from the glass.

Special care should be taken to avoid damaging the lens rear element while cleaning. The front can actually take a fair amount of abuse without affecting performance. Even small scratches on the rear will degrade the image.



Steve
Reply

Bookmarks
  • 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!
da wr lenses, dust, k-mount, lenses, lenspen, pentax lens, slr lens, wr
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pentax K-7 Dust Alert and Dust Removal Functions brosen Pentax DSLR Discussion 9 02-09-2016 04:43 AM
Limited Lenses like dust a lot. LFLee Pentax SLR Lens Discussion 1 06-20-2010 02:53 PM
Used lenses, Dust ok? cannabiscurescancer Pentax SLR Lens Discussion 4 02-18-2010 12:05 PM
I hate to ask. I have a couple of screw mount lenses gathering dust. magnum1 Pentax SLR Lens Discussion 10 01-15-2009 08:56 AM
share your interesting fridge magnets! Gooshin Post Your Photos! 0 02-23-2008 01:19 PM



All times are GMT -7. The time now is 03:29 PM. | See also: NikonForums.com, 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?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top