Shel... This link explains the adjustment of a movie camera lens...but it is of course the same basic principle as applied to all collimating:
http://lavender.fortunecity.com/lavender/569/lenscollimation.html Don't know if it helps or not... I don't believe collimation is really much of an issue unless a lens gets pranged or dropped somehow or it focuses past infinity or whatnot. Unless you focus using the footage scale, and most of us SLR guys don't, a lens that shows 13' on the footage scale but focus sharpest at 10' isn't any big deal. Besides, these measurement are always to the plane of the film, NOT the front of the lens as some people assume and I don't think Pentax has ever issued a camera with a film plane mark to measure at in any case. Funny enough, a guy offered me job once to do bench collimating for his company. Sounded interesting and I would've been given the chance to play around with hideously expensive Panavision Panaflex cameras and lenses (he also mentioned Zeiss T* primes). This would have included anamorphic lenses, too! That would've been very cool! Too bad I couldn't live on 8 bucks an hour. Regards, Brendan MacRae - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
