Tjis 3 x 4" Cavision 4-Stop Glass ND Filter 3x4"from Cavision 4-Stop Glass ND Filter 3x4"reduces the amount of light entering the lens without affecting color. It is used primarily when the light level exceeds that which the film stock or video CCD can handle. This is often the case when shooting on a sunny day in a location featuring an abundance of light reflection such as a desert, ocean, or snowy landscape. If a reduction in depth of field is desired, the neutral density filter can help achieve this because it allows you to open the lens aperture further without overexposing your image.

1.2 Optical Density    Glass Construction

Related Questions and Answers

Q: 1. I have the sigma 16mm F1.4 and will be taking pictures of buildings and structures on a trip. Will this filter make a difference in the quality of my pictures?? please help, Im a beginner.

A: A quality filter such as Hoya, B+W, or Breakthrough will not diminish the quality of your image. If they did, we would not be able to sell them. The more important question Jose is what do you wish to do with this filter? So that we may be of the best assistance, please write regarding what you wish to do. provideo@bhphoto.com

Q: 2. is it ok to stack two of these the 3 stop and the 2 stop? will it effect the picture quality? or create any color shift if stacked? also will it work if stacked with cp?

A: Stacking filters will always degrade the image quality

Q: 3. Hi,is this filter can be on the Leica Summilux C T1.4 Primes???http://gulfcamera.com/leica-summilux-c-t1-4-primes/There are our lens type

A: Yes, this filter can fit a Leica Summilux C T1.4 prime lens.

Q: 4. Will the standard vignette on the Tokina 16-28mm at 16mm?

A: I am using mine with the Nikkor 14-24 as well and it works very well.

Q: 5. Is it multi-coated on both sides?

A: Hoya coats their filters on both sides.

Q: 6. Does this fit the Sony 24-70 Gmaster lens?

A: No, you would need the 82mm version. Which is the Hoya 82mm ND (NDX8) 0.9 Filter (3-Stop) (http://bhpho.to/2aYyUXX).

Q: 7. Will this work to it's top performance on a Canon 5D3?

A: Yes Leica 67mm ND 16x Filter is compatible with the Canon 5d Mark 3 if you have a lens on the camera that accepts 67mm filters.

Q: 8. Annoying question, but how many grams does this filter weigh? It's for my Zenmuse X5 for Inspire 1.

A: 11g actually I used them with X5 camera with M. Zuiko 25 mm f/1.8

Q: 9. Can this filter be stacked with Hasselblad's CP filter of the same size? If so what impact would it have on IQ?

A: The Hasselblad Circular Polarizing (CPL) Filter (72mm) has front threading, so it could accept the Hasselblad ND8 Filter (72mm). However, it may cause some difficulty with regards to focusing and would reduce the exposure.

Q: 10. How neutral are the Hoya ND filters?

A: They are very neutral. It does not reduce infrared but that is okay since it is only 3 stops. At higher stops the exposure will be longer and the infrared may cause color shifts, but at 3 stops an ND filter like this is still good since exposures will be shorter.