Anamorphic lens slide help

guyan123

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Hi

I have a Isco II lens and want to somehow install a slide directly to my projector.
Is there a slide out there that would allow me to do this?
My projector mount is quite long and to install the lens in front of the projector at the same length would look a bit out of place in my living room.
I know Panamorph do a lens slide which connects directly to the projector but i guess it only works with their lenses.
Any suggestions would be helpful.

Thanks
 
Just to point out that if you slide an Isco II out of the way, your picture will not remain constant height. This is because the Isco II maginifies the image by approx 5% so your 16:9 image will be a little shorter once the lens is removed. This means you then need to manually zoom the image slightly to fill the screen height. Unlike the (much) dearer Isco III which keeps the lens in and out screen heights exactly the same...but it's a big cost for this benefit (and the improved image clarity I presume).

I usually check before watching a film to see what AR it is and either set the lens up (projector zoomed to the end stops to minimum, so this is easy). If 16:9 I don't bother getting the lens out and I slightly zoom the projector to fill the screen height.

As my 'lens in' configuration means my projector is at minimum zoom, it also minimises any side effects of using a lens, so at least I get the absolute best out of it. If I ever saw a bargain Isco III I'd be tempted to grab it. :)
 
Thanks KelvinS1965 for the reply.
Yes i know about the magnify issues with the isco II.
Small price to pay to go cinemascope:)
Hopefully someone out there could recommend a slide that will connect directly to my projector.
 
What are you like with DIY, and does it have to be a motorised sled?

I made an MDF 'plate' that bolted to my pj that had a portion that projected out in front of the pj. That's what I attached the lens too. I found the new centre of gravity and mounted the ceiling mount there. If you don't do that, the weight of the lens will try and tip the pj on the mount.

I originally had a Prismasonic lens that I could change from pass through to cinemascope, but after a while I stopped using pass through and scaled 16:9 to match (back then there was very little HD material), so you may not need a sled (you can scale back to 16:9). It depends on how picky you are about throwing away some horizontal pixels for 16:9 content.

If you do want to use a sled, and you don't mind doing it manually, you can uses some drawer slides and just manually slide the lens out of the way. Do a search here and on AVS for DIY lens sleds.

One of the best electric lens sleds is from Cineslide: TECHHT.com Scope Automation Specialists for the AV industry but is probably a little expensive. I'm sure the Panamorph is modifiable, but it depends on your DIY skills. Scott from Techht is very helpful so he might be worth contacting for some guidance on other electric sleds and their ability to be mounted to the ISCO II (great lens IMHO) :)

Gary
 
Thanks Gary for the help:smashin:

I think i might contact Panamorph and Scott from Techht to see if their attachment plate will work with the ISCO II.
Not really bothered about a electric sled as i will have to adjust the zoom anyway which is a manual affair with the Optoma HD87:( when watching 16.9 movies.

Thanks
 
The Runco Q740i I saw demoed recently had an autoscope attached. This went from one aspect ratio to the other at constant hieght seemlessly in about 0.5 of a second with no other buttons needed to be pressed on the remote. So Either that system (of rotatin glenses) has a ISCO III type of lens installed, or maybe this high end system is integrated as a single unit whereby there is some software jiggery-pokers going on seemlessly ?!

Incidentally what an amazing projector!!
 

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