[Darkroom] digital IR camera

Joachim Pedersen joachimp at gmail.com
Sat Feb 20 21:35:47 PST 2010


Peter-
> Did you get the white balance in camera, or is that in photoshop?
Thats all in camera. As long as you can set a custom white balance on
the camera, you just need to find something that is highly emissive in
IR, such as healthy green grass on a bright sunny day. Take your white
balance from that grass.

Also, most/all of those images are using a R72 IR pass filter, which
filters light less than ~720nm by > 1000 times. The images with the
brown/yellow hue are from my un-modified dslr with the R72 in place,
long exposures in bright sunlight.

glad you liked them!

-Joachim
------------------------------



On Sat, Feb 20, 2010 at 21:22, Peter Hamel <hamelp at yahoo.com> wrote:
> Those are great, I especially like this one:
> http://www.flickr.com/photos/joachimp/4088441337/
>
> Did you get the white balance in camera, or is that in photoshop?
>
> The camera I used does pure red pictures by default, the closest I could get to white, in camera, was with fluorescent white balance, which made the pinkish pictures I put on flickr (then I was too lazy to edit them to neutral from there).
>
> --- On Sat, 2/20/10, Joachim Pedersen <joachimp at gmail.com> wrote:
>
>> From: Joachim Pedersen <joachimp at gmail.com>
>> Subject: Re: [Darkroom] digital IR camera
>> To: "Peter Hamel" <hamelp at yahoo.com>
>> Cc: darkroom at lists.noisebridge.net
>> Date: Saturday, February 20, 2010, 8:58 PM
>> GREAT!!! Thanks so much! I'm a big
>> fan of digital IR, I've done a
>> little with my hacked point and shoot. I'm sure this camera
>> will yield
>> some very interesting results!
>> some of my D-IR:
>>  http://www.flickr.com/photos/joachimp/tags/digitalir/
>>
>>
>> -Joachim
>> ------------------------------
>>
>>
>>
>> On Sat, Feb 20, 2010 at 20:32, Peter Hamel <hamelp at yahoo.com>
>> wrote:
>> > A few years ago, I modified a nikon slr (d70) to shoot
>> in infrared, using one of the replacement filters from http://www.lifepixel.com
>> >
>> > Here's a few pictures I took with it:
>> > http://www.flickr.com/photos/41835392@N00/sets/72157603801912261/
>> >
>> > I haven't used the thing in a long time, so I wonder
>> if anyone here wants to play with it.
>> >
>> > I gave the camera to Rubin, ask him if you'd like to
>> borrow it and use it.
>> >
>> >
>> >
>> > _______________________________________________
>> > Darkroom mailing list
>> > Darkroom at lists.noisebridge.net
>> > https://www.noisebridge.net/mailman/listinfo/darkroom
>> >
>>
>
>
>
>


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