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Cokin P Series Hard-Edge Graduated ND Filter (84 x 100mm, 3-Stop)

BH #COP121 • MFR #CP121
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Cokin P Series Hard-Edge Graduated ND Filter (84 x 100mm, 3-Stop)
Key Features
  • 0.9 Optical Density
  • Optical Resin CR39 Filter
  • For Cokin P Series Holders
  • Hard-Edged Line of Transition
This 84 x 100mm Cokin P Series Hard-Edge Graduated ND Filter is designed for use with a Cokin P Series Filter Holder. It helps to darken specific areas of an image, such as bright skies, while allowing for a normal, unaffected exposure in the other regions of the image. The filter is densest at the edge and tapers to clear by the middle, with a hard-edged line of transition between the dense and clear areas. A neutral density filter with a hard-edged line of transition is useful for images that include defined horizon lines. Neutral density filters do not affect the coloration of the image and this filter provides up to a 3-stop reduction in light from entering a lens.
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Cokin CP121 Overview

This 84 x 100mm Cokin P Series Hard-Edge Graduated ND Filter is designed for use with a Cokin P Series Filter Holder. It helps to darken specific areas of an image, such as bright skies, while allowing for a normal, unaffected exposure in the other regions of the image. The filter is densest at the edge and tapers to clear by the middle, with a hard-edged line of transition between the dense and clear areas. A neutral density filter with a hard-edged line of transition is useful for images that include defined horizon lines. Neutral density filters do not affect the coloration of the image and this filter provides up to a 3-stop reduction in light from entering a lens.

This filter is made of durable, optical resin (CR39) and measures 1.6mm thick.

  • Compatible with a Cokin P Series Filter Holder
  • Darkens bright areas of an image, such as skies, while leaving the remainder of the frame unaffected
  • Provides up to a 3-stop reduction of light in selective areas
  • Hard-edged line of transition between the dense and clear areas
  • Useful for images that include defined horizon lines
  • Filter does not affect the overall coloration of the image
  • Constructed from optical resin (CR39) for clarity and durability
UPC: 085831270587

Cokin CP121 Specs

Filter Type
Graduated ND
Exposure Reduction
3-Stop
Graduation Type
Hard Edge (Horizontal)
Size
3.3 x 3.9" / 84 x 100 mm (Cokin P)
Front Accessory Thread / Bayonet
No
Filter Thickness
0.06" / 1.6 mm
Filter Material
Rigid Plastic
Packaging Info
Package Weight
0.08 lb
Box Dimensions (LxWxH)
5.7 x 4.2 x 0.3"

Cokin CP121 Reviews

Great value for the price

By Miguel
Rated 5 out of 5
Date: 2017-06-05

I've used this filter a few times and it works great. The 3-stop is great - might be a bit off - but I do a lot of post anyway. For the money - it works great. I don't see how spending a lot more on Lee's or others is worth the added cost.

No noticeable color cast

By Zzzjjj
Rated 4 out of 5
Date: 2015-11-26

At least in my copy there was no color cast but I have had other filters from Cokin and Formatt with Magenta color.

See any errors on this page?

question

What is the difference between the Cokin P121 and the P121S graduated neutral density filters? Both are stated to be 3-stop graduated filters. Does the s version make a more gradual transition from clear to dark than the base 121?
Asked by: Eric J.
The S version is a softer graduation
Answered by: Charles L.
Date published: 2018-08-27
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