I add to Elias explanation that after you verified the 3.5F flash lever is at "X" position you can fire the flash at any shutter speed because the Rollei TLR central leaf shutter has X synch for any speed, however it's necessary to be careful, you could need to compensate with the diaphragm the shutter speed changes if the light becomes out of the automatic flash selected range, it happened to me that using 1/250, or 1/500 the frames were underexposed because I did not adjust the diaphragm for the faster shutter speed. At 1/125 the Vivitar 283 flash exposure guide and automatic range for the distances work fine for the 3.5F and at 1/100 for the 2.8C and Rolleicord IV, I use them with these shutter speeds for flash in general. Carlos 2009/10/4 Ken Frazier <kennybod@xxxxxxx>: > Listers, > > I was given a box of "old" photographic equipment, and there were > several Rollei flashes, including a 128BC, in almost new condition. I > know that flash unit was intended for use with the Rollei 35S, and > wondered if it can be used with the 3.5F. When connected via a PC cord, > it fires, but I'm not sure about settings, etc. > > tks, > > Ken > -- > The Rev. Kenneth Frazier > Senior Minister > First Congregational Church, UCC > 222 West Main Street > Waterbury, CT 06702 > 203-757-0331 > pastorfcchurch@xxxxxxxxxxx > > --- > 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 > > --- 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