SIMILARLY, i have a 0.7 mutar in bay III for my 2.8F. i could run film thru the thing and develop it to find the answer to the question i am about to ask, but for the fun of it let me ask the fellows: how many stops should you open to compensate for the mutar? thx, -rei On Feb25 15:51, Jerry Lehrer wrote: > Roger, > > The attachments did not corrupt the Rollei lenses, only the negatives.. > > Jerry > > "Roger M. Wiser" wrote: > > > I had a similar telephoto and also a WA lens and used it for a time. I > > never altered the exposure setting and it did not seem to affect > > exposure . After a while, I saw no significant mm difference to > > justify using these lens. I also wondered it these attachements > > corrupted the Rollei lens. I ultimately sold them. These lens > > attachments have not been discussed in this group but I am sure that > > others are more knowledgeable than I. Roger > > > > ----- Original Message ----- > > From: SandyF > > To: rollei_list@xxxxxxxxxxxxx > > Cc: cvug@xxxxxxxxxxxxxxx ; camera-fix@xxxxxxxxxxxxxxx ; > > idcc@xxxxxxxxxxxxxx > > Sent: Saturday, February 25, 2006 3:09 PM > > Subject: [rollei_list] "Kaligar" Telephoto Accessory lens > > for Rollei Automat > > A while back, I bought a "Kaligar" Telephoto Accessory lens > > for my Rollei Automat. I haven't used it for months, and > > now can't remember if this Accessory lens changes the > > effective speed of the f/3.5 75mm Tessar, thereby requiring > > changes in the exposure settings. > > > > If anyone can help, it would be greatly appreciated. > > > > TIA > > > > Sandy F. ???? > > > > ---------------------------------------------------------------- > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.1.375 / Virus Database: 268.1.0/269 - Release Date: > > 02/24/2006 > > > > --- > 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 > -- Rei Shinozuka shino@xxxxxxxxx Ridgewood, New Jersey --- 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