Infra Red Photography Filter
Nov 23, 2015 13:14:16 #
I've been experimenting with IR photography using filters rather than converting a camera. I found the filters problematic as you had to remove the filter to focus, then reattach the filter and shoot.
So, I went looking for a 4"x4" IR filter, but found they cost upwards of $225 each. While searching in the Optics area I stumbled upon a 4"x5" IR filter (not Glass). I got it today and the images look fine.
I'd like an opinion from an experienced IR photographer as to what I got and their thoughts on using this filter.
Here's a link to the filter I bought.
http://www.edmundoptics.com/optics/optical-filters/longpass-edge-filters/optical-cast-infrared-ir-longpass-filters/43954/
Thank you in advance for your input.
So, I went looking for a 4"x4" IR filter, but found they cost upwards of $225 each. While searching in the Optics area I stumbled upon a 4"x5" IR filter (not Glass). I got it today and the images look fine.
I'd like an opinion from an experienced IR photographer as to what I got and their thoughts on using this filter.
Here's a link to the filter I bought.
http://www.edmundoptics.com/optics/optical-filters/longpass-edge-filters/optical-cast-infrared-ir-longpass-filters/43954/
Thank you in advance for your input.
Nov 23, 2015 13:32:37 #
ejrmaine wrote:
I've been experimenting with IR photography using ... (show quote)
Please post some photo's
Thank you
Nov 23, 2015 13:54:42 #
RichardSM wrote:
Please post some photo's
Thank you
Thank you
I second that.. please post some of your results
Nov 24, 2015 08:03:16 #
ejrmaine, at that price ($17+shipping) you are not risking the family fortune. The specifications look as tho it would put you in the 750 nm area which is my favorite.
Long Pass Filter, what? Aaah, it is a sharp cut off filter. The % transmission of the actual filter you mentioned is also shown below (second photo).
Does your camera have a manual focus capability? If so can you focus then attach a screw on filter and remain in focus.
Long Pass Filter, what? Aaah, it is a sharp cut off filter. The % transmission of the actual filter you mentioned is also shown below (second photo).
Does your camera have a manual focus capability? If so can you focus then attach a screw on filter and remain in focus.
Examle of a Long Pass Profile
The Edmon Scientific 4x5 Filter
Nov 24, 2015 08:38:59 #
Dec 14, 2015 18:45:46 #
Jul 2, 2016 16:37:00 #
Aug 26, 2016 20:47:38 #
ejrmaine wrote:
I've been experimenting with IR photography using ... (show quote)
I have a camera modified for IR, and I use the cheapy filters off eBay. No complaints about them at all.
With IR, you are trying to create interesting results by limiting visible wavelengths and including wavelengths longer than some value you decide. If the cutoff is not as steep, or not as accurate, you're still going to get interesting results.
Go for and have fun.
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