Cokin P Holder

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I've been reading up on the forums about Cokin P series filter holders and theres all sorts of chat about buying a 'cheap ebay' copy and hacking bits of it off to then slot the filter into

however a quick ebay trawl turns up all sorts of stuff under 'cokin p'

what is its specifically I need to achieve the desired result on a sigma 10-20 lens (77mm filter thread) to get the various grad filters to fit with minimal additional vignetting at the wide end?

and I presume the whole kit and caboodle can be slotted stack style over a standard ND screw fit filter?

any information much appreciated as its all a bit confusing looking at whats available on ebay
 
Looking to get something like this to use with a 67mm diameter lens... down as far as 17mm at the wide end (Tamron 17-50mm lens).

Would the Cokin P-Series be ok to use with this combination without any vignetting at 17mm?
 
Cokin P is fine down to 17mm lens on a Full frame, depending on the holder. (I had one of the aforementioned hacked up ebay specials on mine).

77mm is the biggest you can get for P size, if you need maximum vignette protection you can strap the filter to the filter ring without a holder with elastic bands, but there's not enough meat on a 77mm adapter ring.

I'm currently using 100mm filters elastic banded to lens hoods!

ETA: You can get 82mm
 
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Ibought one of the cheap cokin replica p filter holders and used a junior hacksaw to cit all the holders bar the first one off. It was 3 quid and holds my filters fine with no vignetting on my sigma 10-20 on crop (canon 550d)

The only thing that doesnt fit is my kood circ polariser as the slot isnt big enough on the cheap holder
 
cheers for the advice everyone

Nick, seems I basically have identical setup to you, 550d and sigma 10-20, which exact holder did you buy, do you have a link? only as said I have trawled ebay and theres a million different variants on the theme so I'm a little bogged down!
 
groovy, thanks for all your help, i'll be awaiting next payday i think as just purchased a couple of track days in the car and a new tripod this week! oops!!!
 
nickjohnwatson said:
Some people think that the cokin filters give a colour cast. But I've got the cokin p121 set of 3 ND grads and haven't had any problems at all. Also I've got kood ND 2, 4 & 8 filters that work well and don't break the bank.
Click to expand...

Giving a colour cast and not being usable are not the same thing. My Cokin P121S was noticeably green, didn't stop me using it. The Koods were almost perfectly neutral. My current Lee ones (suspect fakes) are yellow if you hold them side on to the sun! Still using them. :thumbs:
 
Alan Clogwyn said:
Cokin P is fine down to 17mm lens on a Full frame, depending on the holder. (I had one of the aforementioned hacked up ebay specials on mine).

77mm is the biggest you can get for P size, if you need maximum vignette protection you can strap the filter to the filter ring without a holder with elastic bands, but there's not enough meat on a 77mm adapter ring.

I'm currently using 100mm filters elastic banded to lens hoods!

ETA: You can get 82mm
Click to expand...

So on a crop sensor D7000 and 17-50mm lens, the P series should do me fine if I'm understanding correctly? :) As well as getting the 67mm attachment too?
 
Alan Clogwyn said:
Giving a colour cast and not being usable are not the same thing. My Cokin P121S was noticeably green, didn't stop me using it. The Koods were almost perfectly neutral. My current Lee ones (suspect fakes) are yellow if you hold them side on to the sun! Still using them. :thumbs:
Click to expand...

I had a couple of kood filters & found them very good especially for what they cost. A much cheaper way of using a 100mm system.

I used to have the cokin p series system but found it awkward to use & experienced vignette problems using my 10-20mm lens. Ultimately the lee system is the way to go, but its not cheap.
 
nickjohnwatson said:
Some people think that the cokin filters give a colour cast. But I've got the cokin p121 set of 3 ND grads and haven't had any problems at all. Also I've got kood ND 2, 4 & 8 filters that work well and don't break the bank.
Click to expand...

They do give a colour cast which becomes considerably more noticeable when you stack more than 1 filter... the question is how much it bothers you
 
If you have a UV filter on your wide angle lens take it off before putting on the adapter ring to eliminate vignetting.

(The slimmest screw in UV filter is about 2mm thick so the distance between the lens and the outer edges of a cokin filter/hood is increased narrowing the width of view, thereby bringing the edges of the filter/hood into view, often causing vignetting.
Removing the filter decreases the distance between the lens and the filter/hood thereby widening the width of view and often eliminating any vignetting.
Also, presuming the photographer has at least one good hand and a remote, what reason is there for using hoods which are the main cause of vignetting ?)
 
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