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03-03-2013, 06:54 AM   #1

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Where can I get the Circular Polariser for the DA 25 f/4?

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My mother in law did a spring clean and threw away the box for the DA 25 which had the circular polariser in it. At the moment, the lens has a UV in it. I bought a Hoya 40.5mm threaded CP but it's too wide to be inserted. Does anyone know where I can get one that is compatible? I'm based in the UK, so UK sources would be best

Thanks in advance!

Last edited by itshimitis; 03-03-2013 at 09:55 AM.
03-03-2013, 12:41 PM   #2
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Hmm.....mother-in-law, you say?

I don't know the UK system well, but would the subsequent divorce be handled by your solicitor or your barrister?

Seriously, I do not know where you'd get the polarizer. My fall-back option for such weird (as in: not sold in usual places) widgets is to contact Pentax and pick it up with next time I'm in Japan. So far, that hasn't failed me

I live in France and will find myself in Tokyo in about a months time. Failing all other options, if you want, contact me privately if you want me to courier stuff back for you?
03-03-2013, 01:26 PM   #3
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I purchased a tiffen 3 stop ND filter 40.5mm and it fits just fine into my D FA 25mm. Maybe just purchase another CPL and see if this one fits, if not, send it back. B&H and Adorama both have good return policies.
03-04-2013, 08:13 AM   #4
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B&H has a slim 40.5mm, it must be available in Britain. No way to tell if the wheel will engage properly. I use a 49mm slim polarizer in the 645 600mm, a regular one will not fit:

Heliopan 40.5mm Slim Circular Polarizer Filter 740580 B&H Photo

They also have a Pentax 40.5mm listed for the Q.

Polarizing| B&H Photo Video

03-04-2013, 09:24 AM   #5

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Original Poster
Thanks guys, and especially to tclausen - a very generous offer. I have ordered two different types from including the one suggested by Thomas

Thanks again, will let you know how I get on. We also have Focus on Imaging happening in Birmingham, UK this week, am thinking of going again this year and might try and see there also...
03-06-2013, 03:04 AM   #6

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The heliopan one that arrived was marginally too thick, but a Dörr Digiline I ordered did fit nicely.

Dorr 40.5mm Circular Polarising Digi Line Slim Filter: Camera & Photo

Thanks for your help guys

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