To dig up this old thread, I now has an IR modified camera.
As written elsewhere, I got a used 300D recently. Following this
guide, I took apart the camera, removed the whole filter assembly, and put it back together again. And it still works
It took about an hour to do that in total, but I think it will be faster the next time I do it now I have a feel for it. And there will be a next time as I only removed the IR block filter this time, and haven't replaced it with anything yet. This will mess up AF operation.
I did the modification at work. I had the Tamron 18-270 on the camera quickly took some test shots. I shot across the room I was in. It's about 10m to that wall on the far side which is what I aimed at. Wide open, it was very blurred. At f/8 everything was soft but getting sharper as it got closer. I think this is an extreme case of front focus!
As I have taken a half day, I'm at home now and took a few test shots. The weather isn't best for IR, but the overcast sky still seems to be letting enough IR though for this...
In the following shots, I have put a Hoya R72 filter on the lens. The filter is 62mm whereas the lens is 72mm, so the adapter is chopping off my corners. These are only quick test shots taken from inside my house. Not the best view I know!
18mm 1/100s f/16 ISO100 - Sunny 16 seemed to work! You wouldn't get that on a non modified camera...
The camera was saving jpegs and I had AWB on. Swapped red-blue channels and adjusted white balance. Unfortunately it looks like this lens suffers from hot spot in the middle.
Similar to #1 except at 270mm zoomed into the trees on the horizon.
1/100s f/16 ISO200 with custom white balance in camera. No PP other than resize.
Looking back, I think I'll switch to raw exclusively for this as it does take a more processing than visible anyway.
So my first impressions are, this is doing exactly what I hoped. Easily hand holdable IR shooting. Quality seems much better than long exposure on unmodified camera too.
Find a cheap wide angle lens that doesn't suffer from IR hot spots. Full manual is ok since AF is totally out anyway.
Fit an IR filter in front of the sensor so I can compose through viewfinder again.
Get out there and use it (weather allowing!!!)