Posting following from another... thread since relevant to the discussion:
So I think it would be OK to presume FBCF-5DII may NOT be ready for the prime time until BCF2 becomes available for full frame mods?
Well, yes and no.
We have been using the 5DII filter for years now and they work fine AS LONG AS the stock IR cut if left intact.
If you only use the Baader you WILL have a Full Spectrum Mod camera...or one VERY similar to it.
I dont know why Baader would make some filters IR cut, and some not...and then "advertise" all of them as IR Cut Filters...it baffles me, honestly, because the 5DII is clearly NOT an IR Cut(I am working on my IR Filter test video tonight!)..
It DOES still DIRECTLY replace the stock LPF-2 filter in SIZE(and index of refraction, etc). and obviously has great AR coatings as well.
So, since I have done DOZENS of 5D Mark II's alone, not to mention ANY other full frame mods, and they have ALL worked PERFECTLY with the Baader 5DII *and* LPF-1 system, I would say that the mod HAS BEEN "ready for prime time" for a long time!
Just because the filter is not up to the newest Baader (BCF-1) specs/standards does NOT in ANY WAY mean that the filter is useless, or that the filter should not be used in modifications.
Obviously it works, and has worked for a while now..
The ONLY caveat that I can think of is:
Using the Baader 5DII filter in a system that uses a single stock filter system..i.e. something like the Canon 5D Mark I/classic..
You have ONE filter. so you replace it with the Baader 5DII and you will have a Full Spectrum Mod because the filter does not block much/any IR..so instead of a "Baader Mod", you get a Full Spectrum Mod..(again, why Baader would make the filters different is beyond my knowledge ATM!)
Same goes for the Nikon D3, which also uses a single stock filter system. if you only use the Baader 5DII you will have a Full Spectrum camera.
But, the D800 or D600, or 5D Mark II/III or 6D ALL use a DUAL filter system!!! KEEP LPF-1 and replace the WB filter(LPF-2) with the FBCF-5DII and you DO have a "Baader Mod"....
SO...the point? You HAVE To use the CURRENT 5DII filter on cameras that have STOCK DUAL FILTER SYSTEMS! It can NOT be used on SINGLE stock filter systems as an IR Cut replacement.
Sorry..kinda went in circles there. must be my lack of sleep
just my 2:penny:'s... YMMV