I've just developed a few rolls of R=B3. The 120 appears to be identical to Cube 400c, without the edge markings. Cube has edge markings: 'Cube 400c' and numbers (numbers often so blurred as to be unreadable). The R=B3 has the same blue base and it is just as curly. The 135 is physically different from the 135 Cube I've used: the base is grey instead of light blue, and doesn't curl nearly as much as 135 Cube. Thank goodness. The 135 does have edge markings. The numbering on the 135-36 rolls I have is out of sync with the load. For example, one roll started at frame 16, went to 42 then started from 0 to frame 12. The text says 'ROLLEI R3 MADE IN GERMANY V41-0'. So far I've only done initial tests in 'Rollei High Speed' developer at EI 200, 400 and 1600. I haven't used enough to pass judgement. Best, Helen ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.