Tiffen 1.2 ND filter being blue?

[Kaku Ito]

We had Tiffen 1.2 ND filter at today's film shoot and it ended up surprisingly blue. Anyone experienced this before?

 

[Vigen Vartanov]

Never use 1,2 fillter , but did you have IR filter ? May be it because of IR ?

 

[Pietro Impagliazzo]

Why would infrared cause blue cast?

 

[Vigen Vartanov]

I don't now

 

[Kaku Ito]

No, didn't have the IR filter. It's hard to find in Japan.
So, I guess 1.2 is not ideal for RED then?

 

[Vigen Vartanov]

I have no 1,2 ND . Can not answer you .

 

[Ivan G]

I just ordered a formatt 1.2 Should I return it and go down one step?

 

[Nils Ruinet]

I just ordered a formatt 1.2 Should I return it and go down one step?

Formatt has a 1.2+IR (hot mirror) version. You might want to order that one instead...

 

[fde101]

Wouldn't IR cause a RED cast?

 

[fde101]

Are you sure you're not set for Tungsten lighting under Daylight lights?

 

[Uli Plank]

In my experience IR is causing a purple cast, in particular on black clothing when using Rec709. Could well go into blue as well. ND 1.2 is definitely too much without an additional IR or the combined Formatt.

 

[Hans von Sonntag]

Post a framegrab @ 5000K, 320 ASA developed and me and others like Uli who have learned it the hardway can tell you wether you are hit by IR or not. ND12 without a hot mirror is prone to IR.

Hans

 

[Kaku Ito]

Under same situation, ND1.2 turns blue and others don't.

Sounds like the Formatt combo is the solution.

 

[Ivan G]

So are you saying that the Formatt ND worked for you?

 

[Thomas Patrick C.]

Here's a frame grab with Tiffen 1.2nd with Rosco TrueColor IR.

 

[Kaku Ito]

sotty that looks perfect and she's so cute!

 

[Thomas Patrick C.]

Thanks Kaku, my 4 year old daughter.