Volker, My 6000 Polaroid back does not have glass – nor does my SL66 Polaroid back. I have not heard of the glass before but this may be a later addition for the reason in the second paragraph below... However, there is an optically flat glass with the 3003 Polaroid back to overcome the fact that the film plane is slightly within the camera body (for light tightness) – the film back plate is moved forward once the back has been attached – and the Polaroid film emulsion must therefore be behind this plane. In the 6003 (later model), 6008 and xAct cameras there is a removable film plane roller set. This must be removed when using the 4560 rotatable back and also digital backs. I was told that this should also be removed when using the Polaroid back, although different sources were undecided. I have not noticed the Polaroid imaged to be unsharp, although this may not be noticeable unless examined under a magnifying glass – I only really use the back for exposure and compositional checks, relying on the viewfinder screen for focus. The reason is that the 4560 and digital backs in effect have their own film plane registration which interferes with the camera roller set – although the focal plane is the same. Because the 4560 magazine has its own film plane, it puts it in the same camp as you have recently commented for the CRU magazine, the Hasselblad, in which the back has to be very accurately machined; whereas the normal 6000 backs use the film plane on the back of the camera body and the film back and holder are not critical to accurate film registration. Ref TLR Polaroid film back... The Polaroid film that was used in the TLR Polaroid backs was the 2-part roll type that has been out of manufacture since circa 1992. See http://www.rwhirled.com/landlist/landdcam-roll.htm There is mention on the web about adapting these cameras to take Type 100 pack film and 35mm film. Impossible Project may re-introduce the roll film in the future...... The wait probably will be a long one though ;-) John On 31/08/2013 13:29, "Volker Muth" <volker_muth@xxxxxxx> wrote: Hello Carlos, for my 6008 professional I use a Rollei Polaroid magazine and I always wondered why there is glass just in front of the film plane? I never saw this glass in other Polaroid magazines for the 6000 series. What is the effect of the glass? For this magazine I use Fuji FP-100C 3x4 inch instant film and it works well. It comes in a 10 sheet pack and can be bought in any prof shop or online. Regards, Volker ______________________ mailto: volker_muth@xxxxxxx Am 31.08.2013 um 13:31 schrieb CarlosMFreaza: 2013/8/30 Jan Decher <jdecher@xxxxxxx>: ... ... I guess, my main interest in the Polaroid Magazine I saw in the shop window was if it could be adapted to my 3.5 E (Xenotar) and if you can still buy Polaroid film for it. I assume the answer to both questions is no... Jan: The accesories to connect the camera with the Philips oscillograph and the Rolleinar 4 are BI, however the Polaroid back can be used with a Rolleiflex 3.5E and most BI, BII and BIII post-war models (except Rolleimagics , they don't have interchangeable backs), you also need a Rolleicopi viewfinder to compensate for the different focal plane. You can't focus to infinity, but the kit is suitable for close-ups and macro work without and with Rolleinars, there are details about the distances in my first post. You could ask about Polaroid films here: http://shop.the-impossible-project.com/shop/ 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