ll Jayc ll's photostream  

5D ii modded
50mm f/1.2 AI-S Nikkor
100mm f/2.8 macro Canon

B + W filters:
720nm
930nm
403nm UV
UV/IR Blocker

I'm going to add a few more tags on the infrared photos for those going to research before purchase/conversion of an IR camera, so they don't have to spend weeks in front of a monitor, and instead can enjoy the outdoors. The net provides a—helpful but incomplete—list of lenses without hot-spots with infrared. I quested through flickr in which only a handful of folks had the type of lenses with IR setup i was looking for. I mailed a few for information and they were very friendly and forthcoming (Thank you). So, if you have a question, I be pleased to assist where i can.


Things I've learned:
-Modding sensor filter of 5Dii means sacrificing USM sensor cleaning ability. This means expensive, tedious and dangerous peripheral dust maintenance gears.

-IR/UV cut filter on a full spectrum converted camera might not be able to restore proper true visual light colors in Jpeg. I need to do some test to confirm this.

-Most filters are double thread, meaning it can mount on a lens, and a second filter can mount on this filter (I didn't notice this though I had double threaded filters for years. I did hours but no one really talk about this basic knowledge > Hoya metal (I don't discern any difference in glass quality)

-UV filter (403nm)'s images look like IR's images. Leaves are white (in B&W) except they ain't as glowy as IR's. UV (like standard 720nm) has two colors: clear sky is purplish while leaves are orangeish on original.

-On IR modded camera, the incoming light intensity is comparable to an unmodded one. For me, 720nm at ISO160, f1.2, shutter speed on cloudy days is around 1/6400. I use polarizers as ND filters if shutter speed max out at 1 8000.

-Camera will see a few stops (1-3x?) less light with a 930nm than 720nm

-For 5DII, iso160, iso320, iso640, etc are native ISO ranges and will produce minimum noise (this is hearsay from 5Dcinerma. Check that stuff out yourself.)







-Infrared is the color beyond red
-Red beyond red



























































































Remember the time when flickr's profile page had a lot of comfortable white space, and the front page had no audio ads?
Good days