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View Full Version : Cokin-P and 17mm = useless

RbrtPtikLeoSeny
2nd of December 2006 (Sat), 21:05
Well, the good news is I just got my 5d yesterday and absolutely love it. :D

Bad news... I tried shooting my Cokin P system with a CP and at 17mm it's like looking through a cylinder... even at 24mm I can see the holder in the corners. It's gone by 28mm, but that's 11mm's of width that I can't use with my filters.

Is there anyway to avoid this? A different holder I can upgrade too?
Tsmith
2nd of December 2006 (Sat), 21:25
Cokin P on Full Frame won't work below 28mm as you discovered. Their more expensive Z Pro setup is what you'll need, which will require new filters also.
RbrtPtikLeoSeny
2nd of December 2006 (Sat), 22:09
Cokin P on Full Frame won't work below 28mm as you discovered. Their more expensive Z Pro setup is what you'll need, which will require new filters also.

Shoot... well, at least there's an alternative. The Z system will work perfectly though? Even at 17mm?
Tsmith
2nd of December 2006 (Sat), 22:36
Shoot... well, at least there's an alternative. The Z system will work perfectly though? Even at 17mm?

Read this .pdf file: http://www.cokin.fr/cokin-data/news-product/PDF/PR_Z-PRO-photo.pdf

too you could try the single slot wide angle P holder as it works on my cropped sensor to 11mm with no vignetting so quite possible it'll work at 17mm on the Full Frame. Cost around $10.00.
rhys
3rd of December 2006 (Sun), 21:36
The good news is that I used the Cokin A series up to 28mm.
sunbeast
3rd of December 2006 (Sun), 22:24
too you could try the single slot wide angle P holder as it works on my cropped sensor to 11mm with no vignetting so quite possible it'll work at 17mm on the Full Frame. Cost around $10.00.[/quote]

The wide angle holder helps a bit, but you'll still have vignetting at 17mm with the FF.
RbrtPtikLeoSeny
3rd of December 2006 (Sun), 22:40
too you could try the single slot wide angle P holder as it works on my cropped sensor to 11mm with no vignetting so quite possible it'll work at 17mm on the Full Frame. Cost around $10.00.

The wide angle holder helps a bit, but you'll still have vignetting at 17mm with the FF.[/quote]

Would it be gone by 19mm possibly? $10 is a lot cheaper than a new holder/filters...
sunbeast
4th of December 2006 (Mon), 16:32
The wide angle holder helps a bit, but you'll still have vignetting at 17mm with the FF.

Would it be gone by 19mm possibly? $10 is a lot cheaper than a new holder/filters...[/quote]

On mine it disappears just between 20-22mm.
rhys
4th of December 2006 (Mon), 19:03
Just a thought but are you orienting the holder correctly? It makes a difference.
RbrtPtikLeoSeny
4th of December 2006 (Mon), 19:58
Just a thought but are you orienting the holder correctly? It makes a difference.

Absolutely, set the camera on a tripod and fiddled with the holder until I had it positioned perfectly. Still shows in anything shot below 28mm.

I guess an upgrade is in store. For now I'll just rely on photo shop for images shot below 28mm.:)
rhys
4th of December 2006 (Mon), 20:12
Absolutely, set the camera on a tripod and fiddled with the holder until I had it positioned perfectly. Still shows in anything shot below 28mm.

I guess an upgrade is in store. For now I'll just rely on photo shop for images shot below 28mm.:)

That's very strange. I think I used a Cokin A series on a 24mm lens without seeing any vignetting. I had the parts that gripped the filter at the top and bottom of the frame but obviously not visible in the frame. I also used the Cokin filters, not the black plastic type with the filter disk in the centre.