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DPChallenge Forums >> Hardware and Software >> Cokin P work on Sigma 10-20 at 10mm?
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06/15/2008 12:52:38 AM · #1
I've found lots of good advice in the forums on the Cokin P system, but I have this very specific question: is the Cokin P big enough to use on the Sigma 10-20 at 10mm without vignetting?

Thanks!
06/15/2008 12:59:28 AM · #2
I'm not sure. It might depend on which holder you use. I have a low-profile holder, but I've never tried it on the 10-22 lens. If you don't get an answer before then, I can test it out tomorrow.

06/15/2008 01:08:34 AM · #3
If you mean without cutting the corners, the answer is yes, if you use the Cokin Wide adapter, but it's VERY close. If your adapter isn't straight up and down, you'll see the corners of it in the shot.

Now if you mean subtle vignetting, darkening of the edges, there may be some but nothing really noticeable. I almost always use the holder and a filter.
06/15/2008 01:27:12 AM · #4
Here's a link to the low-profile P series holder for wide angle lenses.
P series slim-wide holder

According to this it only eliminates vignetting down to 20mm focal length on 35mm format.

06/15/2008 01:40:44 AM · #5
Thanks, folks!

I really want to buy the Cokin H250 kit of GND filters, but everyone seems to be out of stock. I need 'em before I leave for a trip next Saturday. Anyone got any suggestions?
06/15/2008 02:23:32 AM · #6
You could buy the individual filters, but you'll pay more.

I could sell you mine, but then I'd have to kill you. :)

06/15/2008 02:48:26 AM · #7
Oh how disappointing. I ordered them from Adorama about 1 mth ago. Sadly they didn't arrive here in Finland until I had already left for my trip, so I haven't had chance to use them yet. :(

Originally posted by levyj413:

Thanks, folks!

I really want to buy the Cokin H250 kit of GND filters, but everyone seems to be out of stock. I need 'em before I leave for a trip next Saturday. Anyone got any suggestions?
06/16/2008 07:12:32 PM · #8
Jeffrey--I recommend buying the Cokin wide angle filter, adapters for all your lenses, and then a Hitech gradual instead of the Cokin. Why? The hitech is significantly more expensive, but so far, seems more scratch resistant. Also, it's longer than the cokin, so it gives you more flexibility.

I dropped mine in to the water at the base of a waterfalls yesterday though. Scratch resistant doesn't help with a loss, so fortunately, I reached in and grabbed it before it carried away. And it seems to be ok! (The whole filter holder got knocked off the front of my lens as I was scrambling under a big branch right by waters edge.)

06/16/2008 07:17:27 PM · #9
IMO, the Hitech GradND is more color neutral than the Cokin. I find the Cokin has a bit of purplish cast to it.
06/16/2008 07:27:49 PM · #10
Originally posted by mpeters:

IMO, the Hitech GradND is more color neutral than the Cokin. I find the Cokin has a bit of purplish cast to it.


Yes, that too :) Though oddly I actually like the effect of the Cokin on landscapes ;)

Edit to add: Buy the lens caps that fit over the adapter rings (not the one for the adapter itself).

When you swap the adapter from one lens to another when changing lenses, then you just take the lens cap from the new lens and put it on the old. One size fits ALL. Works better than manufacturer lens caps!

Message edited by author 2008-06-16 19:29:33.
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