Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
05-13-2009, 09:33 AM   #1
Site Supporter

Join Date: Apr 2008
Location: Cambridge, MA
Posts: 138
What sort of UV filter?

I need a 77 mm UV filter for a good new lens (Sigma 70-200 f2.8) fro my K10d.

Should I get a standard one (e.g. $35)? Or would you folks recommend a more expensive multi-coated one (over $100)? I shoot mainly out of doors, and have heard that sun flares on the lens with the cheaper filters.

05-13-2009, 03:06 PM   #2
Forum Member
Presto's Avatar

Join Date: Jan 2009
Location: Jacksonville, AL
Posts: 85
A good multi-coated filter does help a lot with flare. I think that a good hood helps at least as much as the coating. As for myslef; I always get the coated ones. I'm more inclined to actually use them if I know that they are not going to cause a problem. Another thing is that a lens is only as good as the worst piece of glass in it. That includes the filter.
05-13-2009, 08:23 PM   #3
Site Supporter

Join Date: Apr 2008
Location: Cambridge, MA
Posts: 138
Original Poster
Thanks Presto.. I am taking that advice to the local camera store tomorrow, and will buy the coated filter.
05-13-2009, 11:16 PM   #4

Join Date: Apr 2007
Location: Oklahoma USA
Posts: 1,498
It depends

I think it depends what you want the filter for, and what brand you buy.

You can choose from non-coated, coated, and multi-coated filters. Multicoating definitely improves performance where there is any potential for flare, and you can find plenty of examples of this. On the other hand, you use the filter (typically) to protect the lens. With a non-coated filter, you can pretty much wipe it off with water and anything handy without significantly damaging it. Even if you do damage it, you can get another one for not much money (I recently got an uncoated 77mm filter for $12), whereas with an expensive multi-coated filter you might be tempted to hang onto a damaged filter. Multicoatings seem to vary pretty dramatically in toughness - some seem to be very fragile.


05-14-2009, 09:06 PM   #5
Veteran Member

Join Date: Sep 2008
Posts: 484
This link to a review of UV filters was just posted in another thread:
UV filters test -

I have a cheap Tiffen UV filter, and it performs pretty badly when shooting into the sun. Otherwise it's fine, though, no noticeable degradation of image quality.
05-15-2009, 03:54 PM   #6
Forum Member
FengyBoy's Avatar

Join Date: Apr 2009
Location: Nottingham, UK
Posts: 58
I recommend HOYA HD Digital UV filter which I'm currently using. I used to have couple of HOYA Pro-1 digital filters, they were pretty good as well. But HOYA does claim new HD series can provide better protection and optical quality, compared to the older ones.
05-15-2009, 10:39 PM   #7
Site Supporter

Join Date: Jul 2008
Location: Detroit MI, USA
Posts: 503
Stay away from un-coated filters at all costs. The main problem with digital is the reflection off the CCD/CMOS sensor, and there is 100% for sure a reflection of light. Next time your cleaning it look at how shiny it is, especially around the edges. Digital lens use multi-coatings throughout and especially in the back field lens. Hoya PRO 1 D, filters have a special for digital coating, 5 layers total, 3 on the back and two on the front. Why 3 on the back? You guessed it because thats where the most damage from reflections come from on digital cameras, the sensor out! Kenko, Promaster, Hoya, Quantaray made for digital are all the same, and all can be used with the highest of confidence. There are more expensive filters that I have not listed, if your budget allows them, fine. But just stay away from the elcheapo un-coated filters.

  • 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!
k-mount, lens, pentax lens, slr lens, uv
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Greetings from a sort of newbie Feanare Welcomes and Introductions 1 05-11-2008 11:23 AM
At the beach... well, sort of! bc_the_path Post Your Photos! 2 07-21-2007 03:25 PM
What sort of car? hyson Post Your Photos! 5 06-07-2007 04:40 PM
Another Torontonian here...sort of jslifoaw Welcomes and Introductions 10 04-24-2007 11:08 AM

All times are GMT -7. The time now is 10:12 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]