The Tiffen 4 x 4" 4 Cool Blue Soft-Edge Graduated Filter helps to specifically add a cool, purplish-blue coloration to skies and other bright areas of an image while allowing a portion of the image to remain neutrally colored. The filter's coloring is densest at the edge and tapers to clear by the middle, with a soft-edged transition between the density and clear areas. The 4 color density provides less cool blue coloration than the 5 density, but more than the 3 density filter.

This filter is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. It measures 4 x 4" / 101.6 x 101.6mm.

4 Density Color Graduated Filter    Cool Blue Coloring in Select Areas    Soft-Step Graduation    ColorCore Technology

Provides a deep cool blue coloring to select areas of the image.

Graduated filter design keeps a portion of the image neutral, resulting in a more realistic look while allowing for the sky or other bright areas to take on the color of the density.

Related Questions and Answers

Q: 1. Will the Cokin P-series filter holder fit my Rokkor MC W. and MC macro lenses?

A: As long as your Rokkor lenses have a standard filter thread between 48-82mm, and a focal length longer than 20mm, you could use the regular P-series filter holder with your lenses.

Q: 2. Hi , do I need to purchase a 77mm adapter ring for using this filter?

A: Yes you will need an adapter ring for every different size lens you may want to use the ND filter on

Q: 3. I can't find a P Series adaptor for my Nikon Z50 46 mm lens. Will a 46 mm to 62 mm step up ring with a 62 mm adapter work?

A: The Cokin P-series filter holder is designed for filter threads between ⌀48mm and ⌀82mm. However, if you have a ⌀62mm P-series adapter ring and a 46-62mm step-up ring, then you may use the P-series filter holder on the 46mm filter threads on your lens.

Q: 4. I have two wide angle lenses, one with a 77mm diameter and the other's an 82. I assume I'll need an 82mm adapter as well as the 77. Is that correct and where do I find it?

A: That is correct. You can click on the link to view the items; https://bhpho.to/2vBKhB2 https://bhpho.to/2xcZU2i

Q: 5. It's not 4 x 4 or 4 x 5.65, so what mattebox?

A: The NiSi 100x150mm Nano Soft-Edge Graduated IRND 0.9 Filter (3-Stop) is not made for a mattebox but instead intended for use in a filter holder such as this: https://bhpho.to/3vrn0ML

Q: 6. These are meant for using your camera verically?

A: The NiSi 100x150mm Nano Soft-Edge Graduated IRND 0.9 Filter (3-Stop) is not for vertical shooting only. The filter is used in a filter holder and is long so that you can move the graduated part of the filter off-center.

Q: 7. Lee filter adapters

A: If your asking which filter adapters can be used in conjunction with this filter and the Lee Foundation Holder, that would depend greatly on the lens you are using.

Q: 8. Can I use a lens hood as well as this filter system, or will I have to forego use of a lens hood?

A: No. Once your put on the filter holder there is no way to screw on the lens hood.

Q: 9. Can this filter fit on the NiSi 150mm Filter Holder for Nikon 14-24mm Lens?

A: No this is 100mm mount filter

Q: 10. Will this filter fit on the cokin-z pro holder?

A: Sorry I do not know. I am using the filter with the Lee Filter Holder.