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
2142960
Only my first filter was appreciably off-white after a year.Keep in mind that their main purpose is to avoid contaminating the RO membrane.
51040
I don't know. But I also felt the filter degraded the quality of the image.
552808
If you imagine filter as the shape of a "D" in the middle of the straight line there should be a small tab. It is the same blue material in the filter. Pull the tab and the filter should come out easily. If the tab isn't there for some reason just pull the filter up.
1808648
You have to LOOK AT your lens and it will display somewhere on it (the front most cases) either 0.77 or 0.72 or so on,,,,,thats your filter size,,,,,,, hope this helps ,,,
1198221
The size will be the size of lenses filter diameter. The hood should be checked at various focal lengths to determine if image cut-off occurs.
741649
Bought this a long time ago, but have not used it much - CP filters are very "personal" - you like them or you don't - Some are warmer, some cooler, and the more expensive ones usually don't seem to change the relative color intensities like many of the cheaper ones (which can make the whole picture seem quite artificial). I'm afraid it's pretty much trial and error trying to find something that you prefer. Sorry I can't be of more help.
1358633
The macro ability is almost too good. I was disapointed, for a while there, that it would not focus, at times, with a Polaroid and UV filters. I later realized that it would focus on any dust on the filter (especially when the sun is not in your back).
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.
1118724
I couldn't say because after putting it on for a few seconds one of the filters popped out and couldn't be fixed. thankfully this was used for a movie where we could shoot around the missing piece, but pretty worthless.
1104030
Carefully read the specs! Some units will specify new electronic processing to almost virtually eliminate the blur you are concerned about; I noticed it right away in the perceptual clarity...you pay a little more but the difference is worth it.
395852
I'm unsure. I had another/original media in the filter, and I just changed this one. So, it hasn't been in there long enough to know what happens for changes in color.
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.
274894
I'm assuming that it is dependent on the volume of water that passes through the filter. I haven't actually tested it.
1724615
with one of the filters on you can only zoom about half of your full zoom. Also if you don't zoom enough you will see the circle of the adapter until you zoom out far enough.
12009
I have 3 sets of ND filters and each set consists of a ND.8, .4 & .2..... therefore by combining filters you would achieve (.8+.2) 1.0 or (.8+.4) 1.2 or (.8+.4+.2) 1.4
1858256
this shouldn't interfere with any portion of focusing either in or out of focus regions. If you put this to its fullest setting you will be left with a very close to black out filter. What you will notice its that you will probably have areas off uneven filtering the darker you set the filter.