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Author Topic: Upload your random pictures Steve Kraus Film God Posts: 4094 From: Chicago, IL, USA Registered: May 2000 posted 10-18-2003 06:36 PM                    I'm actually most curious about the sprockets on the 15 perf unit as they almost look like rubber rollers. Pinch roller drive would complicate both sync and keeping the rotating prism in step. But it occurs to me that one could have a rubber roller WITH steel sprocket teeth. The teeth keep everything aligned but having the rest of the sprocket be a full contact soft rubber roller would spread the load and reduce the risk of tearing the film on starting and stopping. BTW, if anyone is in need of an ordinary 35mm KEM let me know.  |  IP: Logged German Marin Expert Film Handler Posts: 227 From: Verbania (VB), Italy Registered: Jul 2001 posted 10-18-2003 08:03 PM                     This guy look like someone I know...  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 10-18-2003 10:31 PM                        The 16mm and 35mm Steenbecks that I've used have rotating prisms. Newer models (which I haven't seen) have "flickerless" picture heads which presumably are an improvement on the original design. It works the same way as a standard 16mm tabletop viewer (e.g. Moviescope, etc.). I assume that the 70mm (!) versions work the same way. At least on the east coast US, Steenbecks seem to be far more common than KEM or Moviola flatbeds, so I can't comment on those (since I haven't seen them). The nicest 16mm model is an 8-plate version with two soundheads and two picture heads. Can anyone explain how the 35mm Steenbeck works when set up for CinemaScope? Does it use a different picture head entirely?  |  IP: Logged Steve Kraus Film God Posts: 4094 From: Chicago, IL, USA Registered: May 2000 posted 10-18-2003 10:53 PM                    I've never used or serviced a Steenbeck so can't comment too much about them. Probably much the same only different. I think they drive the plates mechanically from the main motor rather than with individual winding motors as on a KEM. The later KEM picture heads were also considered "flickerless" but this is only by comparison with the old ones. As the film moves through it the prism facets track the frames and a kind of lap dissolve takes place but there is still a tiny displacement between outgoing image and incoming hence a bit of flicker at speed. The old units had a solid prism set back a bit from the film plane with a thin meniscus lens in between. I have forgotten how many facets; perhaps 8. The flickerless head has a much larger prism with more facets and the film runs very close over the outside. The rotating prism is actually hollow with a smooth circular opening inside. The interior space has two trapezoidal prisms which together take the image from one inner surface to the opposite side, almost but not quite touching the interior curving surface of the rotating prism. On a KEM Universal & Universal Junior the picture modules (which only contain a sprocket that drives the prism, the film drive sprockets being on the main table) simply lift off and can be swapped as needed. Large Academy, Small Academy, Scope, or even 16mm can be placed on the machine. Older modules fit as well. Scope modules have a knob to select Academy, 1.85, or Scope. (Older ones only offered 1.85 or Academy). On the RS ("Rapid") machines (KEM's answer to Steenbeck with a large variable speed control knob) there is a similar choice of modules. On these units the drive sprocket is part of the prism assembly and the module is linked to the machine by a rubber spline but modules are still interchangeable and the K800 and older KS take the same modules. Finally, the later KS (dunno why they reused the name) are fairly non modular as the mechanism and most of the optics are part of the basic table. But even these can convert back and forth. There is no picture module per se but the screen unit with a few of the mirrors can come off and the lens changed. I recall doing such a switch as an LA rental unit came off of one film's account and onto another's.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 10-19-2003 01:55 AM                     Note to self - never trust Tom for finding the lowest prices. This item should be in the $60-80 range. http://tomshardware.bizrate.com/,mss__cat_id--410,prod_id--7385438,rf--wgg,title--Wd400jb.html  |  IP: Logged Ron Lacheur Jedi Master Film Handler Posts: 650 From: British Columbia, Canada Registered: Feb 2002 posted 10-19-2003 02:00 AM                     Brad, I think that price is for 20 of those hard drives. Note the " 20pk " in the item description.  |  IP: Logged Chris Hipp Phenomenal Film Handler Posts: 1462 From: Mesquite, Tx (east of Dallas) Registered: Jul 2003 posted 10-19-2003 02:28 AM                     $60-$80 would be a serious rip-off, I bought my 120gb for my Tivo at Fry's for $100. All the other specs were the same as those.  |  IP: Logged Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 10-19-2003 03:04 AM                        $60 - $80 isn't a rip off... the only difference between the 40GB drive and the 120GB drive is that the 40GB drive will contain two blank platters. Other than that they still cost the same amount to manufacture and assemble.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 10-19-2003 03:21 AM                     Aha, good call Ron!  |  IP: Logged Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 10-19-2003 04:18 AM                        OK, I admit, during the odd dusk-till-dawn I want to go home early.  |  IP: Logged Phil Hill I love my cootie bug Posts: 7595 From: Hollywood, CA USA Registered: Mar 2000 posted 10-19-2003 02:33 PM                  Ah yes, Daryl...as John would say..."Film Done Right"... OBTW: What is that next to the Windex? Your bottle of "personal lubricant"? >>> Phil  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 10-19-2003 08:02 PM                     Phil the bottle beside the windex is the lubricant  |  IP: Logged Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 10-19-2003 10:19 PM                        I've always wondered what the Windex was for... there's no port glass. The other bottle is mosquito spray.  |  IP: Logged Gracia L. Babbidge Jedi Master Film Handler Posts: 709 From: Bowdoin, Maine Registered: Aug 2000 posted 10-20-2003 02:33 AM                        heh, that other bottle looks like nothing other than a bottle of Avon's "Skin So Soft" ... it is not the best 'insect repellant'. However, if you want to repel the opposite sex, mist yourself with it.  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 10-20-2003 11:11 PM                     I sure hope this post makes Mike Olpin happy.  |  IP: Logged

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