Does anyone have any experience with how the Tiffen 812 filter compares to KR 3 filters like those from B+W and Heliopan?
These appear to be similar in many ways, both with more red in them than the 81 series of warming filters, and both with a filter factor of 1.2 or ~+1/3 stop exposure. I also have the impression that they provide a similar amount of warming.
The Tiffen 812 seems to have a good reputation and is one of the filters they offer in both the standard uncoated and the "Digital HT" multi-coated with titanium coatings. I would be curious to learn about the history of its development--there doesn't seem to be a lot of information available about that.
Is there is any value in having both the 812 and KR 3? Do they have a different look with their effect on the film? I am thinking particularly of their use with today's slide films like Kodak Ektachrome E100 and Fujichrome Provia 100F.
These appear to be similar in many ways, both with more red in them than the 81 series of warming filters, and both with a filter factor of 1.2 or ~+1/3 stop exposure. I also have the impression that they provide a similar amount of warming.
The Tiffen 812 seems to have a good reputation and is one of the filters they offer in both the standard uncoated and the "Digital HT" multi-coated with titanium coatings. I would be curious to learn about the history of its development--there doesn't seem to be a lot of information available about that.
Is there is any value in having both the 812 and KR 3? Do they have a different look with their effect on the film? I am thinking particularly of their use with today's slide films like Kodak Ektachrome E100 and Fujichrome Provia 100F.