IR Cut threaded filters

[C.B. Lorch]

Looking to get IR cut for our Nikon glass, but I'd like to keep MB slots available and use a threaded (77mm) filter. I found this one by B+W.

http://www.bhphotovideo.com/c/product/475095-REG/B_W_65031976_77mm_486_Digital_UV_IR.html

Anyone have any thoughts or other recommendations?
Thanks,

 

[Brian Broz]

You will want the IR (Hot Mirror) filter on the outermost stage.
If you thread on an IR hot mirror and place filters in front of it you will most definitely have reflection issues.

 

[Mike Prevette]

I would agree that IR filters weather they are Hot Mirrors or the IR absorption filters like the one he linked to should be on the outside.

That being said I have a ton of the BW 486 filters that I use on my Leica M8. They are very good filters and work exceptionally.

 

[Alexander Christ]

That being said I have a ton of the BW 486 filters that I use on my Leica M8. They are very good filters and work exceptionally.

Mike, do you have any experiences with the 486 on the RED?

 

[Mike Prevette]

Yes, I have used them a handful of times.

You can see a 486 filter getting passed over the lens in the original video clips from the original IR tests with the red I did last year:

http://www.freedomfromgravity.com/red/ir/A001_C011_080125_nofilter_24.mov

http://www.freedomfromgravity.com/red/ir/A001_C006_080125_nd9_250.mov

http://www.freedomfromgravity.com/red/ir/A001_C008_080125_n9_n12_24.mov

 

[Rob Castiglione]

I have been wondering exactly the same thing and am looking at the B & W filter.

Some additional questions:

1. Is it the case that you cant use it on lenses wider than 35mm?
2. Does anyone sell ND screw on filters that are stronger than .9?

 

[Alexander Christ]

Mike, thank you, looks good. I will add it to my kit.

Rob, B+W has ND 1.8 and 3.0 (but no 1.2 or 1.5) and Tiffen strongest is 1.2.

 

[Rob Castiglione]

Thanks Alexander. I didn't know that Tiffen made a 1.2 .

 

[Mike Prevette]

1] well you will get cyan corners on lenses wider than 35mm (still) but with the red it will be more like 25mm or 18mm. Even then it's easy to fix in post.

I have been wondering exactly the same thing and am looking at the B & W filter.

Some additional questions:

1. Is it the case that you cant use it on lenses wider than 35mm?
2. Does anyone sell ND screw on filters that are stronger than .9?