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
1737842
I've actually never heard of it up until you asked this. I did some research and found that the cell size is 0.5 um^3. So if the cell is 0.5 microns the filter will get rid of it because it filters down to 0.05 microns.
1337726
It is best to not use a clear filter. A UV/clear filter can indeed affect image quality, particularly when the sun is in the frame. This can result in some rather un-attractive flare and blobs. As long as you keep the hood on when shooting, the front element should be protected, unless you are unreasonably hard with your gear.
1937202
Clear filter, 007M, is the prefered choice and priced higher. UV coating can slightly distort coloring and its benefits are debatable.
1435837
50 Micron pre-filter and 5 micron post-filter. The filter is more densely wrapped toward the core.
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.
1510512
Depends on the lens attached to the camera. If you are looking at the end you would attach the filter to, you should see a zero with a slash through it followed or preceded by the size in millimeters.
144389
I tried just now with both a red and green laser. The red passed right through. The green was greatly diminished but still passed through, just not very much. So, I doubled the filter - 2 sheets worth and the green did not pass through at all. However it reflected back towards the laser as if bouncing off a mirror.
1049050
I'd go with a much stronger filter. 1.8 maybe. Don't stack you'll just be begging for light scatter shooting in to a light source like that.
1947201
Here is the link to the requested filter. http://www.amazon.com/gp/product/B004WDQ2W6
1469915
50mm 1.8: filter size - 52mm50mm 1.4: filter size - 58mm50mm 1.2: filter size - 72mmGoogle to double-check
1055663
I would thank that you would. Have to read all of the spectra for each model # and compare closely, could be an extra coating on the linse, could be minimem focal distence just compare very closely
470422
Adding to Klee's answer: there are 5 correction Filters:1/2 CTB (3200K to 4300K) [1/2 f/stop loss]Full CTO (6500K to 3200K) [1 f/stop loss]1/2 CTO (6500K to 3800K) [1/2 f/stop loss]1/4 CTO (6500K to 4600K) [1/2 f/stop loss]Plus Green (cc30 Green) [1/2 f/stop loss]Heavy Frost Diffusion [2 f/stop loss]
1620973
I used this filter to photograph the partial solar eclipse on 10/23/2014, see my pictures in the reviews of this filter. I found the filter worked well when shooting through the clouds but it was not dark enough when the sky was cloudless. I will try stacking 2 of these filters for future use. When shooting the Sun with this filter DO NOT LOOK THROUGH THE VIEWFINDER!!! Though dark this filter does not block any of the IR light that will burn your retinas. You must use the live view screen for composition.
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.
2186647
I have no idea. I guess it would depend on the composition of the filter that you have. This is good stuff.
81835
I haven't been messing around much, but with my 18-55 mm I got a bit better results, and of course, playing with the filter itself to find the best position for what I am shooting. the filters seem to be a very subtle change. I have had darker gradient filters in the past, and still have them, but they don't fit on my Rebel.