2012/8/10 Marc James Small <marcsmall@xxxxxxxxxxx>: > Thanks, Carlos. My Mutars work well with my 2.8F and GX but, then, so does > my Duonar. Yes Marc, I have no doubt Rollei Mutars work fine on 2.8/80 lenses from f/8 (factory says f5.6), the tests quoted previously found differences for enormous enlargements out of the regular photographic world, otherwise I did not buy a Mutar 0.7 with the BIII adapter, I also have the 3.5F anyway. I don't like the Duonar, it only produces a 43mm image circle, it does not cover the entire 6x6 format, perhaqps it works fine with the Rolleikin. Carlos --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list