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Author Topic: Cinemeccanica lens turret alignment Thomas Jonsson Expert Film Handler Posts: 216 From: Bromolla, Sweden Registered: Sep 2003 posted 03-16-2005 03:07 PM                       My two Victoria 5 have the new (blue) 3-lens turrets. They seem to need some adjusting, the lenses are not properly centered. It´s a good idea with the adjustment screws for "lens shift", but I think one of the lenses should have been in a fixed position(scope), and the other two adjustable. Does anyone know in what position the screws are to be set to be sure the lens is exactly centered in respect to the optical axis? I´ve heard one should be vertical and the other horizontal, but I can´t get it confirmed. Thomas  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 03-16-2005 07:08 PM                     ..in the front of the turret, should be two screw adjustments per each lens - one for lateral, and the other vertical alignmets. - Monte  |  IP: Logged Thomas Jonsson Expert Film Handler Posts: 216 From: Bromolla, Sweden Registered: Sep 2003 posted 03-17-2005 06:58 AM                       Monte, I know about the two adjustment screws. The question is, in what position they should be set to have the lens centered to the optical axis. I was going to email Cinemeccanica Italy about it, but their website has been gone for a week now. Wonder what has happened? Thomas  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 03-17-2005 09:23 AM                     Use a alignotron and centre the scope lens holder on the apperture block Align the machine with the screen and then adjust the flat lens to fit the centering of the masking  |  IP: Logged Per Hauberg Jedi Master Film Handler Posts: 883 From: Malling, Denmark Registered: Jul 2000 posted 03-17-2005 06:00 PM                        Thomas - Bedre svar kunne du ikke have fået i Rigsdagen... Indrøm !! p  |  IP: Logged Thomas Jonsson Expert Film Handler Posts: 216 From: Bromolla, Sweden Registered: Sep 2003 posted 03-18-2005 07:43 AM                       Per, Helt right. Vem fanden har en alignotron!!??? Lad dom fundere pa hvad vi skriver. Vi blir kanske deleated for att vi skriver pa Skandinavisk? Beste hilsen Thomas  |  IP: Logged John Walsh Film God Posts: 2490 From: Connecticut, USA, Earth, Milky Way Registered: Oct 1999 posted 03-18-2005 11:06 AM                     Hey! No speaking in different languages! I know you are saying bad things about me ... But really, I just wanted to say that some new V5 turrets only have one lens positioning screw. Get a pin hole aperture plate from Cinemeccanica. Thread a length of test film (SMPTE 35PA) and use the lens positioning screws to center each image.  |  IP: Logged Thomas Jonsson Expert Film Handler Posts: 216 From: Bromolla, Sweden Registered: Sep 2003 posted 03-18-2005 11:49 AM                       John and Gordon, Thanks for your advice. Perhaps I really need a tech with all his alignment stuff to do this? I was just trying to improve things a little on my own. About the foreign language - just Per and me joking! It´s actually a mix of danish, swedish and english. Thomas  |  IP: Logged Per Hauberg Jedi Master Film Handler Posts: 883 From: Malling, Denmark Registered: Jul 2000 posted 03-18-2005 04:27 PM                        Just a commercial due to the HANS CHRISTIAN ANDERSEN 200 Years of birth celebration  |  IP: Logged Darren Briggs Master Film Handler Posts: 371 From: York, UK Registered: Dec 2001 posted 03-19-2005 06:27 PM                        You can use a pin hole apperture plate to help center the projector onto the screen and the lens onto the screen. Also it is a great tool to ensure the xenon is aligned correctly. Dont forget of using the older grey 3 lens turrets, one of them is center on the film for Mag stripped film, the other two are off set. Can't remember if the ne wlarger blue ones have a centere lens holder. Darren  |  IP: Logged

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