my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Superior Quartz vz USHIO

Author Topic: Superior Quartz vz USHIO Jan Hackett Expert Film Handler Posts: 148 From: Albuquerque, NM, USA Registered: Apr 2002 posted 06-15-2002 07:41 PM                     Just changed my 7kw bulb. Put in an Ushio and could not get it to focus enough light on sreen. So I put in the superior quartz and bingo...Great light. Should I send the Ushio back or try it again when I get my Align-O-Tron? ------------------ Jan Hackett Theater Operations Manager Extreme Screen Dynatheater NM Museum of Natural History Foundation  |  IP: Logged Jamie Sanson Film Handler Posts: 33 From: Port Macquarie,NSW, Australia Registered: Feb 2002 posted 06-16-2002 07:46 AM                     Should I send the Ushio back or try it again when I get my Align-O-Tron? ------- HI JAN First USHIO are one of the better brans in short arc lamps around. So I would not send it back untill you are sure it's the problem. AS you know, you have do a lamp alignment when a new lamp is installed Don't forget all lamps are not the same size ,shape.  |  IP: Logged Gerard S. Cohen Jedi Master Film Handler Posts: 975 From: Forest Hills, NY, USA Registered: Sep 2001 posted 06-16-2002 09:37 AM                     Aren't alignment and focus two separate (but related) functions? I thought the alignment process assured a direct line-of sight between the axis of the lamp, reflector, aperture, lens and center of the screen. Whereas focus moved the reflector forward or back to concentrate the light evenly on the film frame in the gate. Therefore, couldn't the alignment be perfect, but the screen illumination be too dim because of a need to correct the focus? If so, couldn't Jan's problem be a need to focus the light to and from the reflector? [Note Manny's very helpful Align-O-Tron thread on this forum.]  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-16-2002 05:16 PM                     The problem may also be you need an adapter on the Ushio lamp to get it in the correct location in the lamphouse Just because it has the same letter designation there are often dimensional differences between manufacturers  |  IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.