Question--Tiffen 812 Filter

[wilonstott]

Not sure if this is the right section for this question, but oh well, I'll roll with it.

I just picked up a Tiffen 812 warming filter, and while their other 81 series filters specify the filter factor (stop loss), I am unable to find this information for the 812.

No info on B&H (says "not specified") and a quick Google search yields inconsistent information--anywhere from 1/3 stop loss (probably correct) to 1.5 stops (seems crazy).

I got it for my 35/1.4 Nokton, and neither of my Leicas have built in meters (M2 and M4-P), so I can't check via TTL.

I'm concerned about stop loss because I bought it for use with slide film (after many rolls, Provia 100f is consistently too blue).


So, anybody know?


Additionally, if anybody has experience with the filter or images, I'm interested to hear/see experiences.

Thanks in advance.

 

[jmanivelle]

Not sure if this is the right section for this question, but oh well, I'll roll with it.

I just picked up a Tiffen 812 warming filter, and while their other 81 series filters specify the filter factor (stop loss), I am unable to find this information for the 812.

No info on B&H (says "not specified") and a quick Google search yields inconsistent information--anywhere from 1/3 stop loss (probably correct) to 1.5 stops (seems crazy).

I got it for my 35/1.4 Nokton, and neither of my Leicas have built in meters (M2 and M4-P), so I can't check via TTL.

I'm concerned about stop loss because I bought it for use with slide film (after many rolls, Provia 100f is consistently too blue).


So, anybody know?


Additionally, if anybody has experience with the filter or images, I'm interested to hear/see experiences.


Thanks in advance.

I used to compensate the 812 by opening 1/3 of a stop.
Could go up to 1/2 !

YMMV !

 

[hamradio]

I'd have to imagine the 812 to be quite similar to an 81a, which I compensate by 1/3 stop for.

 

[jmanivelle]

Here is table I am using as a memo !

 

[wilonstott]

Great--thanks for the info everyone.

hamradio--do you see a marked difference between the 812 and the 81A?

 

[sevo]

The 812 a 81A with 010M in one filter. Once known as "Velvia filter", as Velvia has a tendency towards green rather than blue haze. It did do worse than the plain 81A with Kodak film (at any rate Kodachrome and the Ektachromes up to EPP) and Astia. I never tried with Provia (indeed I only switched to Provia after Astia vanished).

 

[wilonstott]

The 812 a 81A with 010M in one filter. Once known as "Velvia filter", as Velvia has a tendency towards green rather than blue haze. It did do worse than the plain 81A with Kodak film (at any rate Kodachrome and the Ektachromes up to EPP) and Astia. I never tried with Provia (indeed I only switched to Provia after Astia vanished).

Define "worse."

 

[sevo]

Define "worse."

The extra magenta did show in the sky and whites. Worst in Kodachrome 25, which had a tendency towards pink highlights even at the best of times.

 

[Dwig]

Great--thanks for the info everyone.

hamradio--do you see a marked difference between the 812 and the 81A?

Tiffen's stated idea at the time it was introduced ages ago was that it was the strength of an 81a but the hue was altered from the purely scientifically determined hue of the light balancing series (80, 81, 82, & 85 series) to a hue that they determined by experimentation. They were attempting to create a warming filter with more pleasing results with the film of the day (c. mid-1980s)

@wilonstott - that "1.5 stops" was probably someone confusing exposure factors with stops. An 812 has a filter factor of roughly 1.3-1.5x, or about 1/3-1/2 stop.