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Thread started 22 Mar 2010 (Monday) 22:40
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Cokin Filters

 
m.d.harper
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Mar 22, 2010 22:40 |  #1

I have an opportunity to purchase a pretty big set of Cokin filters. Does anyone have any experience with these? Good or bad. Don't want to spend $200 on something fellow photogs wouldn't use themselves.




  
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argyle
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Mar 23, 2010 06:30 |  #2

It depends on the type of filters. You basically only need three filter types for digital photography (well, maybe four if you include protective filters but I'm not going there). The three types are polarizer, neutral density (ND), and graduated neutral density (GND).

The rest of the bunch, colored filters and "gimmicky filters" (soft focus, starburst, etc), can be duplicated in photoshop are aren't really necessary. Cokin neutral density filters (ND and GND) are not really "neutral" and have been known to impart a color cast on the images. Most photographers that I know, including myself, stay away from them. But like anything else, YMMV.


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Lowner
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Mar 23, 2010 10:59 as a reply to  @ argyle's post |  #3

According to a test carried out a couple of years ago by a UK photo magazine (AP), Cokin filters colour castes in their "grey" filters were no worse than other, much more expensive "high-end" marques and were actually better than a lot.

Apparently there were NO neutral density filters that were actually neutral, from anyone at all!


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nduralt
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Mar 23, 2010 12:26 |  #4

I'd be interested in seeing this article Lowner, I also shoot video and have a matte box so any release on filter qualities is something that excites me.

ND


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DragonDan
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Mar 23, 2010 12:51 as a reply to  @ nduralt's post |  #5

This is one of the first photos I took with a Cokin P filter. It was a 2-step grad ND.

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Canon EOS 50D gripped; Tokina 11-16mm f/2.8; ∑30mm f/1.4; ∑105mm macro; 70-200mm f/4L; 430EX II

  
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Jon
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Mar 23, 2010 13:25 |  #6

DragonDan wrote in post #9855045 (external link)
This is one of the first photos I took with a Cokin P filter. It was a 2-step grad ND.

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Yep - that's about typical of what people I know experience using Cokins. Shooting with a solid, not a grad, and AWB can mask the colour shift in your JPEGs though. This shot of the Washington Monument was with a (3 stop?) Singh-Ray grad, just demonstrating what grads do, for MDJAK at a DC meet-up.

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nduralt
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Mar 23, 2010 13:27 |  #7

Nice picture although the composition seems a bit off, maybe if the people were a little more on the 1/3? You could always crop it for that.


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Lowner
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Mar 23, 2010 13:54 |  #8

nduralt,

I'm sure if you look through "Amateur Photographers" archived articles on their web site, or even emailed and asked them they could turn it up.


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nduralt
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Mar 23, 2010 14:00 |  #9

Sounds good, I'll do that. thanks for the lead! Using the lees right now and performance is great.


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argyle
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Mar 23, 2010 14:09 |  #10

DragonDan wrote in post #9855045 (external link)
This is one of the first photos I took with a Cokin P filter. It was a 2-step grad ND.

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And the magenta cast from Cokins is very obvious. Maybe there's a problem from batch-to-batch with filters from different manufacturers, who knows, but I've used Hitech grads for several years, and have just recently switched over to Lee (no problem with Hitech, got a set of Lees as a gift)...never had any obvious color cast with Hitechs. Not trying to disparage Cokin by any means, but the cast in your image is pretty much representative of what the Cokins are/were known for.


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Lowner
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Mar 23, 2010 15:24 |  #11

I use Cokin "grey grads" and just don't see similar colour casts in my own images. Heres a 2 stop grad of my own, its not an image I'm particularly proud of because it has its faults, but while there are colour shades in the sky its pretty close overall to neutral.


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Jon
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Mar 23, 2010 18:59 |  #12

Was that a panorama or a crop? And how much post-processing did you do to get those greens popping like they are? Boosting green would kill a magenta cast.


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terry_glover
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May 01, 2010 12:34 as a reply to  @ Jon's post |  #13

The following picture wes taken with a Cokin two stop soft edge GND. Other than scaling it down it is right out of the camera.
I do not see any magenta colour cast in any of the images I have taken with Cokin GND filters. I suspect that they have a quality control issue
and the filters vary from batch to batch.

Terry

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Jon
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May 01, 2010 17:58 |  #14

Do you have an unfiltered comparison shot, exposed for the sky, to compare? I see a magenta cast in the clouds. The foreground's so dark it's hard to tell whether there was any there or not, but the ripples on the water look clean.


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