I have used around 300 rolls of Efke film. R100/KB100 developed in D- 76, 20 degrees Celsius for 9 minutes gives great result. Just a little bit grainier than Plus-X.(posted 8953 days ago)Efke film is actually the old german Adox films using the same recipie as in the 1950s. The iso 100 film is Panchromatic, but the 25 and 50 films are orthopanchromatic films and are little more sensitive to blue and makes red a bit darker. Very useful for portraits with great skin tones using light bulbs as the light source.
I love the 25 and 50 films for everyday- and landscape photography. I get good results with D-76, Rodinal and Aculux 2.
The Efke R100 is available in 127 film, and I have sometimes fun with my Rolleiflex 4x4. A small camera that gives perfect pics!
Because Efke film is an older type of film, I like to use them in my older cameras for the special feeling. I have never seen any scratches on the film.