Hi every body, I just got myself a couple of tiffen Cyan filters , the same one used for the Ektachrome, I plan to use them in conjunction with a Red filter, if memory serve I know the film had 30cc of red integated in the emulsion, but anybody remember the filter values one is called UW 0-2 and the other is UW 2-7, the UW prefix i figured :wink: by myself. any help apreciated

Surely the filters were designed to match the Ektachrome Underwater emulsion? So I guess they would be 30CC cyan. I have a 50cc cyan strobe filter - but I have not used it on digital.

Alex

Hi there old man, recovered from your 30'ish milk dringing binge , more to the point, they have two filter strenght associated to different depth, so I gather they are of different value ? I have a Minolta color meter (Which Aquatica will custom house for me one day) but call it laziness I tought i'd ask before, I will try to figure it out with the color meter, will keep you posted.

I remember those filters. They were definately meant to be used with the Kodak Underwater film. The film was "color corrected" for ambient light in blue water so if you used a strobe with this film then the correction would be too much and the photos would look too red.

The values on the filters do not refer to depth, but to camera to subject distance. One filter is for macro photography (0-2 feet away), and the other is for standard and wide angle (2-7 feet away). If the strobe is closer to the subject it needs more filtering than if you are farther away, thus two differnt filters. What a concept!

Where did you dig up these old fossils?

Have fun,

Dan

Hi Dan, got them on e-bay for +/- 15.00 each including holder for the flash, the plan is once i figure out the cc's I'll use them for a transparent cyan cover for the +15cc & 30cc gel filter that I cut to dimension of those filter and sandwich between holder and filter.