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Which polarising filter is best

cd8jbr
Posted 09/06/2010 - 10:27 Link
Can anyone advise me which is the best polarising filter to use with a Sigma 10-20mm lens. It's a 77mm diameter filter - if that makes a difference.

It seems there are so many options priced from a few pounds to second mortgage levels so any recommendations within a reasonable limit would be welcomed.

Thanks in advance

Jill
(still very much a newbie)
Edited by cd8jbr: 09/06/2010 - 10:28
JohnX
Posted 09/06/2010 - 10:53 Link
See this thread. link

I bought the best I could afford plus a number of step-down rings to allow it's use on other lenses.

You'll need to make sure the one you buy is ok with wide-angle; if the filter construction is too thick it'll cause vignetting. You will find some manufacturers make wide-angle versions. My Marumi works fine on my Pentax 12-24. No idea how it would work on your 10-20.

Hopefully someone here in the forum who has the Sigma will be able to advise you better.
Edited by JohnX: 09/06/2010 - 10:57
wadna
Posted 09/06/2010 - 11:29 Link
I've got a Hoya UV filter on my 10-20 & it doesn't vignette.
Take a look at http://stores.shop.ebay.com.au/HKBNS-Shop__W0QQ_armrsZ1
JohnX
Posted 09/06/2010 - 11:59 Link
wadna wrote:
I've got a Hoya UV filter on my 10-20 & it doesn't vignette.
Take a look at http://stores.shop.ebay.com.au/HKBNS-Shop__W0QQ_armrsZ1

Don't forget the difference in construction between a UV filter (one glass element) and a CPL (two glass elements)
wadna
Posted 09/06/2010 - 12:12 Link
JohnX wrote:
wadna wrote:
I've got a Hoya UV filter on my 10-20 & it doesn't vignette.
Take a look at http://stores.shop.ebay.com.au/HKBNS-Shop__W0QQ_armrsZ1

Don't forget the difference in construction between a UV filter (one glass element) and a CPL (two glass elements)

That's right but the Hoyas are made pretty thin these days for that very reason I imagine.

Regards, Ian.
Steve Chasey
Posted 09/06/2010 - 15:40 Link
Jill - 2 options -

1: Hoya Pro series (or v similar) - small mortgage required but it's as thin as you're likely to get, so ought not to vignette. Disadvantage - only fits a lens with same size filter thread.

2: P series Cokin (or simular - Lee for bigger mortage than the Hoya :shock + wide angle holder (not the standard one) +77mm adaptor. Advantage - adaptor rings can be bought for a small sum, so holder useable on a bigger variety of lenses and filters.

HTH



Steve
In the Pack - Gripped K5 (SE),K7 & K20, Gripped MZ-S(SE)& MZ-S,DA10-17, DA12-24, DA14, DA*16-50, 50-135, 60-250 & 300mm; FA31mm/43mm/77mm Ltds; Sigma 8-16, 135-400 & 150-500
Half Backs: K10+BG,DA16-45, DA50-200
Backs: LXs,Super As and lots of A, M & K lenses
Impact Subs: 28mm Shift, K 135-600 (the Banahan of Pentax zooms ), 400-600 Reflex
stevejcoe
Posted 09/06/2010 - 17:04 Link
You will likely get some strange effects applying a polarising filter to a lens with such a wide field of view. I am thinking especially at the short end.
I seem to recall this being discussed on the forum before, but I cannot find the thread.

The link below goes someway towards explaining the issues.

http://www.kenrockwell.com/tech/filters.htm

Regards - Steve
cd8jbr
Posted 09/06/2010 - 17:36 Link
Thanks for all the feedback. I wanted to get a polariser because I'm going to the south of France and often there is very bright sunshine so the scenery sometimes looks a bit 'faded', and then there's the 'water' shots...

I might see if I can pick up a Hoya Pro reasonably cheaply (well I can hope) and see what happens...I thought a very wide angle lens would be wonderful but it seems it has its drawbacks.

Thanks again for the help.

Jill

PS Talk about asking for trouble - I'm getting a Zenitar 16mm f2.8 fisheye lens at the weekend so I'll have to see what fun I can have with that! I'll have to work out how to use it as it's manual and I have little idea about using the cameras (K100D/K-m) on their manual settings.
thoughton
Posted 09/06/2010 - 17:58 Link
I have the Marumi DHG 77mm on my Sigma 10-20 with no vignetting. It was advertised on ebay as a 'slim' version but I suspect they are all 'slim' ones.
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27, Macbook Pro 17, iPad, iPhone 3G
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Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
flossie
Posted 09/06/2010 - 18:18 Link
The Hoya Pro-1 CPL's can sometimes be found at (relatively) reasonable prices on Amazon.co.uk - price goes up and down like a yo-yo though, particularly for the 77mm!


FWIW, I took some pictures on Brighton seafront a week apart, when it was very hazy, first week without a CPL and second with, and the second set the sky and sea are far better although can't do a direct comparison due to lens & time of day... It does depend on your angle relative to the sun. I'd say for a sunny trip to the south of france you'd want one - and the side-effect of knocking 2 stops off would be helpful anyway!
Still shooting in the dark (literally and metaphorically)...
Edited by flossie: 09/06/2010 - 18:23
pierovitch
Posted 19/06/2010 - 07:47 Link
For more information on what makes the differences in quality of Polarizing filters this article is the most comprehensive. link

Cheers Pierre
mikew
Posted 19/06/2010 - 07:57 Link
I just bought a Marumi DHG (it came second in the tests) and it seems excellent. No degradation of image quality that I have discern although it must be there. RRP is 85 mind you.

But Amazon seem to have a creative pricing policy on filters (ie they seem to make mistakes) and to my joy I got it for 14.

Mike
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You can see some of my shots at my Flickr account.
jack2012
Posted 21/06/2010 - 06:04 Link
Like above, but if you rotate the polorizer and don't see any change take it off for the shot as you do loose two stops. I switch between polorizer and a UV filter.
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Edited by moderator: 21/06/2010 - 10:54
Don
Posted 21/06/2010 - 15:35 Link
do a search on Hoya and Pentax and Merger...
then decide on who butters your toast, before you drop your money....
Fired many shots. Didn't kill anything.
mikew
Posted 21/06/2010 - 16:36 Link
Not B+W say?
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You can see some of my shots at my Flickr account.

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