First attempt with IR
I used a 720 IR filter. Instead of bracketing, I I set my camera to HDR. That gave me 4 images compiled into one. I then converted to Black and White, then played with levels.
I will play with color, but my knowledge of IR editing is woefully inadequate
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Good to see you, alfredo!
True IR is monochromatic.
The problem with capturing IR images on most digital cameras is they have an IR block filter built into the sensor. So when you place an IR pass filter onto the lens the two filters work against each other and you wind up with very little light passing which requires extremely long exposure times. Those filters don't really completely block all light, but they just attenuate certain frequencies until they are no longer relevant under normal exposure times. Through long exposure you can still pass light, but you'll be passing light that's in both IR and normal visual range which defeats most of the exercise of trying to get an IR image. You get some IR, but you also get everything in the visual range at more or less the same level.
You may have seen some "IR" images that have color. I have posted a few myself. They aren't true IR images and the "color" in them is actually more of a product of post production editing tools. What they actually are is IR with some red and orange. The red and orange are shifted by editing those color channels into other color channels to create a more visually appealing image.
In order to create an IR image with most digital cameras you need a conversion that removes or replaces the sensors IR block filter. Some digital cameras would pass some IR. For instance the Nikon D70 was highly coveted at one time as an IR camera because it would pass some IR, but it required an IR pass filter on the lens and long exposure times, and it created images that would often be converted into IR false color images. Later on some people started removing or replacing their camera's IR filter with one that is basically the same as the 720nm or 850nm depending on how far into the IR spectrum you wanted to go. Others used 665nm and 590nm filters to create the false color IR images made popular by the D70. You could also use an IR pass filter on the lens and create more of a true IR image if you wanted with one of those filters.
If you have a film camera you can do it the way we did it back before the days of digital cameras. You just buy IR film and use your 720nm filter or any other high spectrum pass filter.
One of the challenges you face with IR whether digital or film is the focus point changes. Back when lenses used to have distance scales on them, some of them included a little red dot which indicated the offset for IR. If you don't have such a lens you either have to figure out the offset through trial and error or use a wide DOF (typically with a wide angle lens), or you can use live mode if your camera supports it.
False color IR:
Monochromatic IR:
I have a film camera made by Ricoh. It came with that lovely Sears 50mm 2.0 lens.
Here's one using the internal red filter in my Oly EM10
