Gast
Hi Mirko,
I finally got round to using the 10-pack of Classic Eco yesterday, which I bought from you a while back (because everyone’s always asking how good the film is).
I developed it for 13.5 minutes in Rodinal 1+50. I started by taking three shots: the first was one stop underexposed, the second was spot on, and the third was one stop affected by overexposure. I then filled the rest of the roll with shots taken during my stroll through our beautiful capital city at ISO 21.
My conclusion is that the images are quite dense; the shot that was deliberately subjected to a one-stop underexposure comes closest to normal density, although the film’s gradient is good.
I would therefore rate the film at around 23 DIN.
Am I wrong here, and are the negatives supposed to be denser with this film (for whatever reason), or does the film have a higher speed than stated?
Another thing that interests me is that the catalogue states it is a 1950s film, but the film shows no relief (like the Efkes or, to an extreme degree, the Svemas); if you hold the emulsion side up to the light, it would have to be a thin-layer film, or even T-Kristall.
Overall, you get a very good film for the price; not particularly sharp or with a fine grain (slightly finer-grained than a Fortepan 100 and, as a result, slightly less sharp), but with an appealing tonality reminiscent of FP 4 Plus/efke 100.
The downside is the adhesive strips, which only stick to the backing paper at the edges; that is, if you moisten them properly in the same way as a stamp and wrap them diagonally around the film.
Roland