The 4-stop, 6.6 x 6.6" Tiffen 4-Stop Soft-Edge ND Filter 6.6 x 6.6"is a graduated neutral density filter that helps to specifically darken skies and other bright areas of the image. The filter is densest at the edge and tapers to clear by the middle, with a soft-edged line of transition between the density and clear areas. Neutral density filters do not affect the coloration of the image and the 1.2 density provides a 4 stop reduction in light from entering the lens.

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. This filter measures 6.6 x 6.6" / 167.6 x 167.6mm.

1.2 Optical Density    ColorCore Technology    Reduce Exposure in Selective Areas

Soft-edged 1.2 ND graduated filter for darkening skies and other bright areas of the image.

Provides a 4 stop reduction in light in selective areas.

Neutral density filters do not affect the overall coloration of the image.

Related Questions and Answers

Q: 1. Tiffen 62mm Graduated 0.6 ND Filter - will it work with the Panasonic Lumix FZ1000?

A: Yes. The Tiffen 62mm Graduated 0.6 ND Filter, will work screwed onto the front of the lens on the Panasonic Lumix FZ1000.

Q: 2. What is the thickness of the filter?(I'm concerned to get vignetting in wide angle lenses)Does it rotate too?Thank you very much!

A: I am not completely sure of its thickness but it seems to be in the .5mm to 1.0 mm range. Very lightIt does not rotate.I use it with my Sigma 10-20mm lens and unless I use it with another filter it does not produce any vignetting. I have used it together with a polarizing filter and it produces some vignetting at 10mm but it disappears at 15mm.O hope this helps.

Q: 3. Thank you!I suppose you meant 5mm to 10mm of thikness/height of the ring, right?

A: The thickness of the filter ring is .265 inch

Q: 4. What is the practical or functional difference between this filter and the Tiffen ND digital filter with the same specifications? Is the ND digital model worth the extra cost (It lists at $120) ?

A: The difference between the normal 72mm Graduated 0.6 ND filter and the Tiffen 72mm Graduated 0.6 ND Digital HT Filter a href= http://http://bhpho.to/1xRFwr9 target= _blank http://bhpho.to/1xRFwr9/a is in the coatings. The Digital HT filter has a high transmission coating that is optimized for digital cameras, as well as scratch resistance and a low-profile titanium filter rings for increased strength and vignetting reduction.

Q: 5. What is the best holder for the 4.x4 graduated filter. Because of its thickness what brand works?

A: Cokin Z Filter Holder works fine, plasticity. Better is Sioti, aluminum, plastic and better made. Newer filter holder slots are for the now popular 2mm glass. This filter is thick, 5mm? I own one, bought at B

Q: 6. Can this filter rotate on its own even if the filter thread on my lens is non-rotatable?

A: Yes, the outer ring is rotatable after the filter is fitted to the lens.It can be rotated to any angle.

Q: 7. will this filter works with a sigma art 35mm lens?

A: This filter will work on any lens with a 52mm filter thread.

Q: 8. Is this a hard edge or a soft edge?

A: soft edge

Q: 9. This filter is very loose (cannot fully tighten, keep rotating) when stacked on top of a B+W XS-Pro 67mm filter... Faulty unit? XS-Pro 67mm diameter slightly wider than TIffen 67mm?

A: I believe this filter is meant to be loose so that it can be easily turned to get the gradation to hit your photograph in the perfect position. Mine is loose as well and works well. It's my favorite filter!

Q: 10. Does this filter have IR Cut. Have you noticed any IR pollution affecting your image quality?

A: As per the manufacturer, this filter has no IR cut nor IR pollution when using it.