That is a very interesting special lens, it's a lens for the 6x6 Rollei SLX adapted with QBM mount - I have no doubt about it- the 9 pins are to provide external electronic (microprocessor) support for the lens electronic central shutter and diaphragm, I guess this is a prototype because it looks like an earlier version regarding the equipment shown in Prochnow Rollei Report 3 2007 edition for a special camera, the 3000P developed from the 3003, this special Surveillance camera -only 30 units were made from 1984 to 1988- had a 2.8/80 SLX Planar lens with QBM bayonet mount and a magazine for 250 24x36 frames, the lens had separated electronic via an external round pins connector. Perhaps the lens in the auction was used for an earlier surveillance camera based on the SL 350, anyway the lens couldn't work without the separated electronic support.- All the best Carlos --- Laurence Cuffe <cuffe@xxxxxxx> escribió: > Theres a rollei lens up on ebay at the moment, > Identified as a hft f rolleiflex sl350 4/80mm lens > which has a rather odd nine pin connector on the > side. Does any one know what this is? > item number 350012491776 on polish ebay. > All the best > Larry cuffe > --- > 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 > > Tarjeta de crédito Yahoo! de Banco Supervielle. Solicitá tu nueva Tarjeta de crédito. De tu PC directo a tu casa. www.tuprimeratarjeta.com.ar --- 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