What about the extinction ratio of the filter?
12698
Hello. I'm not sure what you're referring to with the "extinction ratio" of the filter. If you are perhaps referring to the filter factor - i.e. the amount of f-stop exposure compensation when using the filter with a manual exposure camera or light meter - I believe for this particular filter that value is 1. Tiffen has a small section on Filter Factors you may find helpful here: http://www.tiffen.com/tiffen_edu_camera_filters.html Please let us know if there is anything else we can assist with. Deven Morgan Event Cameras
1705595
It is a naked filter. It is used to make sure your shots are being extracted evenly by visually inspecting the shot as it comes through the filter.
1684090
This is an Infra-Red filter. It filters out all visible light so that the only thing the camera sees is the invisible to the human eye, infra-red wavelengths. You could use this on Black & White, or Color infra-red film, if you have any. I'm pretty sure that no one makes infra-red film anymore though, so you might have a problem there.
867850
If you are referring to the filter, it is not very audible, I would not expect a neighbor to hear it.
74896
Fairly tiny. The bottom catch filter is a tight mesh screen. So tiny enough for floaters you can see but not tiny like a fabric screen you see on robots.
2194984
It's a bit smudgy. I use it now to protect old lenses that I don't use much. B+W, Hoya, Tiffen, are all good filters that I currently use and I haven't had any problems with. I advise paying the extra few bucks for the better filters that will last longer.
620882
I don't believe there is an apprecible difference between the filters for digital and film cameras
2268448
Good Nicole! This filter is hero3 +, I would remind you that the LCD only came a back door and not change the complete housing. The hero3 brought the case that enduring 60 meters and is clearly distinguishable by the small screws on the lens. So I recommend that before buying the filter look good in the photos and the model of your camera body. Filter is 100% worth, improves the image severely! I hope resolve you doubts!
1076452
I still have the box. I will see if I can find information.http://www.pegasuslighting.com/optivex-uv-filter.htmllook at this one
502000
I just did a photo shoot of sunset over Anclote Key in the gulf of Mexico using a the Tiffen ND 0.6. amd ISO 100 with a shutter speed of 320. When the sun was nearly down, the light dropped off and I removed the filter and shot a few more frames which gave me a comparison of filter vs no filter. The colors were "richer" (more saturated) with the filter. I used a Canon T4i and a 24-105MM f4.0L lens.
30419
You should probably call the manufacturer. A quick search of Adorama and B&H does not reveal the answer (both sites carry this filter).
659948
A polarizing filter will block some of the reflected light how much is a function of a number of variables such as the light source, angle etc.
1237421
My documentation is not with me. I can say that the filter does a good job reducing bightness. In fact I have used it on some of the planets with good results.
1775081
To be honest, I don't think it matters. If you look inside the filter, its only a screen. With that said it should not make a difference which way it goes. Its not like a standard paper filter element, where a direction would matter. Hope that helps.
83405
With a minimum focal length of 18mm you likely need a lower profile filter than this. A UV filter generally has no tint but is treated to reduce the effects of UV rays and will brighten colors.
1469915
50mm 1.8: filter size - 52mm50mm 1.4: filter size - 58mm50mm 1.2: filter size - 72mmGoogle to double-check
886082
The lens should indicate what filter diameter it uses. Look for a symbol like an O with a slash through it, which will be followed by a number. That number is the filter size in mm.