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Author Topic: D-Cinema...post your pros and cons of the different equipment Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 04-24-2011 09:54 PM                     Steve... Thats not really that much more $$$ if it's all that much of an improvement... but I say hogwash! Digital projectors and the electromotive forces within the DMD chips moving micron sized mirrors are sufficient force not to be bothered by mild extranious vibrations like film projectors can suffer and hopefully neither do modern buiidings of today. However this presents another entirely different matter... if the booth mezanine is going to move, bounce or vibrate from induced load sources then even an isolated optical bench won't help that issue because the entire projector will be moving in relationship to the screen... Secondly isolating the bench wouldn't be all that difficult to do and if it were very beneficial everyone would be isolating the optical path and it would have been in the TI specs from day one. This is really one of the most rediculous claims I've ever read but nothing surprises me today. Like which hair brush do you use... really silly stuff! Mark  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 04-25-2011 06:28 AM                     YOU, who has not seen it or compared it (A/B) to a non-isolated bench have ZERO qualifications to say what improvements it does or does not make. Most machines have sufficient air movement created by their own fans to shake the system. I have not seen it either and and will not make the claim that it does improve things...but I'm not as dismissive as you seem to be. -Steve  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 04-25-2011 08:33 AM                     Steve... Common sense prevails on this. Most of the shaking going on is going to be the mezzanine floor itself... and isolating the bench isn't going to overcome the shaking mezzanine vs the rock steady screen frame and screen.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 04-25-2011 01:57 PM                     Maybe I'm just crazy here, but I think the projector fans themselves have a much greater chance of creating movement on the pedestal than the mezzanine floor. That being said, most "movement" I've seen was due to people leveling the feet quickly and not paying attention to actually grabbing the pedestal and making sure the feet are truly balanced against the floor during setup. (And later as the foundation settles.) But whatever. Kinoton DLP will never be seen in the states due to the costs. People have watched movies for over 100 years with movement in the image. I can't see this making enough of a difference that customers would seek out a particular location because it was "so much steadier". That being said, if there is a Kinoton DLP available for me to look at without having to go way out of my way, I would be interested in seeing if I could detect a difference.  |  IP: Logged Pete Naples Phenomenal Film Handler Posts: 1565 From: Dunfermline, Scotland Registered: Feb 2001 posted 04-25-2011 04:07 PM                     quote: Steve Guttag Most machines have sufficient air movement created by their own fans to shake the system. Absolutely, and worse are the cases where they insist on sticking the exhaust extract fan right on top of the stack, adding the vibration from that big 200mm or whatever sized fan into the equation. Not a great idea! However it really doesn't bother the Kinotons. Barcos are not so happy, I have seen what I can only assume is mirror shake in that scenario.  |  IP: Logged Bruce McGee Phenomenal Film Handler Posts: 1776 From: Asheville, NC USA... Nowhere in Particular. Registered: Aug 1999 posted 04-25-2011 05:23 PM                     Please, someone, talk about the Sony 220's and 320's.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 04-25-2011 07:34 PM                     Indeed I have been in a few buildings where you can feel the mezanine shake slightly when some one runs the length of the booth. Structural steel buildings are designed to be this way. Next time you are in a multi level shopping mall on a busy day you will see what I mean... or left sitting atop a bridge waiting for a light to change and heavy trucks going the other way. If buildings did not shake slightly the rivits would eventually crack as might the steel beams themselves... ditto for airplanes. As for fans causing vibration... I have yet to have any in Christie, BARCO or NEC. Of course if a fan fails and goes out of balance or is defective then that is another story... Of course most of us would simply replace it. quote: Bruce McGee Please, someone, talk about the Sony 220's and 320's. How many light engines have you lost and how is your lamp life Bruce? Remember Sony "make.believe"! Indeed...  |  IP: Logged Mike Blakesley Film God Posts: 12767 From: Forsyth, Montana Registered: Jun 99 posted 04-25-2011 10:58 PM                        When a BNSF coal train goes by (125 feet from our front door) I can feel the ground a-shakin. If I'm standing by our projector I can see the monitor screen vibrating. I can't see any movement of the image on the screen though, so I guess the projector optics must be isolated from the cabinet pretty well.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 04-26-2011 09:20 AM                     Mike... You need to rename your theater the Forsyth Kinema. I forgot about the 7:10 express that roars past just 200 feet away...  |  IP: Logged Bruce McGee Phenomenal Film Handler Posts: 1776 From: Asheville, NC USA... Nowhere in Particular. Registered: Aug 1999 posted 04-26-2011 05:57 PM                     Hi Mark. We are replacing lamps at 580 hours, and around 100 hours before time to change them, I start noticing the image getting dark and reddish looking. We've lost no light engines yet. I've had to replace lamps early, due to unstable arcs.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 05-15-2011 01:55 PM                     Hi Brice, sorry... didn't see your reply and it's been some time. Your case sounds typical of all the other Sony's I know of. Ushio has to love manufacturing those lamps and they are expensive to buy. I have to wonder whats so different about them vs. a regular short gap digital lamp?? Or does the short life lie in the design of the Sony projector itself? Mark  |  IP: Logged Danial Simmonds Expert Film Handler Posts: 107 From: Kota Damansara, Selangor, Malaysia Registered: Jan 2008 posted 06-14-2011 11:31 AM                        How user friendly is these projectors Barco vs Christie on the Series 2? Would like to find out..  |  IP: Logged Tom Bert Expert Film Handler Posts: 134 From: Belgium Registered: Apr 2010 posted 07-26-2011 09:20 AM                     Danial, if you contact me by email, I'll send you some pictures that visualise our ease-of-use (SW screenshots, modularity of components, metal filters, lamp house,...). Two examples: - our Communicator software is available in 14 languages and 100% uniform across all models; across touchpanel/PC; ... Very easy to use. - Barco has only 45 spare parts to support al 8 projector models: very high ease-of-servicing.  |  IP: Logged Olivier Lemaire Expert Film Handler Posts: 118 From: Paris, Ile de France, France Registered: Jan 2010 posted 07-26-2011 01:00 PM                        Barco's serie-II are pretty nice: simple and modular, easy to install, setup and service. Chrisite's serie-II are nice too: classical architecture (robustness), nice software, allow precise setup, but longer to install. Servicing both, frankly, there is pro's and con's for each of them - but at the end of the day, that's rock in production either.  |  IP: Logged John Gavin Film Handler Posts: 12 From: Machida, Tokyo, Japan Registered: Nov 2010 posted 08-02-2011 02:52 AM                     Daniel, Both Barco and Christie are easy to use. Plus you can set up Presets for channel configurations, so your operators will just have to press buttons to switch configurations.  |  IP: Logged

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