Infrared Filters

[JuiceBox]

I would love to get into infrared photography, but I don't know too much about the differences in the filters. Can anyone give me a quick rundown about the differences between them?

[Picture North Carolina]

Google (http://www.google.com/search?hl=en&q=digital+infrared+filters&btnG=Google+Search&aq=f&oq=) is your best friend.

One warning, tho. There have been many posts here on POTN thru the years from people who bought cheap (many of them from ebay) filters that only worked half-way with some even being nothing more than a red-colored filter.

Buy a brand name, recommended filter. Many will be mentioned in the above articles.

[John_B]

JuiceBox,
There are many differences, one being which wave lengths of light the filter allows and doesn't allow.

Also many lenses don't work well with IR filters ex. my 50mm f/1.4 and my 100 f/2.8 macro. Here is a list of lenses that work well with IR filters <-- click to see (http://photography-on-the.net/forum/showthread.php?p=3190759#post3190759)

I suggest the Hoya R72 IR filter it works very well with Canon DSLR's

[JuiceBox]

Haha, unfortunately I shoot Nikon (I know, I know), so that link is a little less than helpful unfortunately. I will take your advice and see if there isn't a list somewhere comparable to that for Nikkor lenses.

I would definitely buy name brand; I have seen the threads you're both referring to, and I try not to buy anything off of eBay. Too many horror stories from there. I buy some stuff from Keh, but that's about the limit in terms of used things.

Now, how does letting in different wavelengths/different amounts affect the final photo? Such as, how would a photo taken with the Hoya R72 (that's the one I've been looking into getting) differ from one taken with a Hoya R90?

[Tendy]

I been informed that an unexposed piece of film acts as a IR filter.

[PlayersZ28]

Here's a link that has some info on filters:

http://www.dpfwiw.com/ir.htm#ir_filters

The R72 will leave more color in the image but it also depends on how the camera sensor responds.