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DPChallenge Forums >> Hardware and Software >> Infrared photography
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06/17/2015 02:31:09 AM · #1
I noticed a lot of IR photos in the graveyard challenge and was wondering what cameras ya'll are using these days? Filters or conversions? I was into it about 8 years ago but looking to try again. Anyone use Canon 7d with a filter?
06/17/2015 08:31:26 AM · #2
Originally posted by pearlseyes:

I noticed a lot of IR photos in the graveyard challenge and was wondering what cameras ya'll are using these days? Filters or conversions? I was into it about 8 years ago but looking to try again. Anyone use Canon 7d with a filter?


I didn't enter the challenge, but I have a Canon 10D that was converted by LifePixel several years ago. The filter approach is OK, but makes exposures so long that it's impractical for shooting people and the fact that you can't see through the finder makes it that much worse.
06/17/2015 08:58:11 AM · #3
I use a filter. Worked better on my old D70 than the D7100, though...

I've wanted to do the conversion to an extra D70 body I have, but I just can't seem to make the extra money and the notion line up together at the same time... ;)
06/17/2015 10:30:47 AM · #4
I have an old 20D that I'm thinking about converting but since it doesn't have live view I'm not sure if it's worth it. Thoughts on this?
06/17/2015 10:33:04 AM · #5
Originally posted by pearlseyes:

I have an old 20D that I'm thinking about converting but since it doesn't have live view I'm not sure if it's worth it. Thoughts on this?


Once converted you don't need live view. The (conversion) filter replaces the hot-mirror and therefore you'll be able to see through the viewfinder.

Message edited by author 2015-06-17 10:33:31.
06/17/2015 11:20:26 AM · #6
My entry was done with a Canon 30D converted by LifePixel a number of years ago.

If you really want to do more than the occasional IR image, a converted camera is the way to go. As already mentioned, a filter on a regular camera makes for a very slow shutter speed. You wind up shooting off a tripod, and anything moving is out of the question.

As already mentioned as well, live view is not needed. However if you want to manual focus, the magnification from live view can come in really handy.

If you do go the conversion route, keep in mind that IR does not focus quite the same as visible light. LifePixel, by default calibrates to a nifty 50 1.8 for Canon, unless you send them the lens you intend to use.

Old manual lenses had a red R on them, so,that you would focus on visible light, and then move your point over to the red R.

The good news is aspherical lenses do focus all, including IR, light the same.

Hopefully this helps, more than confuses.
-alex
06/17/2015 01:33:38 PM · #7
So I noticed they have several choices for filter type at LifePixel. What would you recommend ambaker?
06/17/2015 02:07:44 PM · #8
Originally posted by pearlseyes:

So I noticed they have several choices for filter type at LifePixel. What would you recommend ambaker?


The answer is dependent on the effect you want to achieve. Step through the discussion of their various filter types starting here. You can step through the filter types by clicking "Next Section." After reviewing these sections, check out the video on this page; your choice may well become more clear.
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