(I know some here are already familiar with my system, but I wrote the following in case it is of interest to others).
Originally Posted by Edgar_in_Indy
I feel the same way. There really is no perfect solution.
I have found the solution I used pretty close to "perfect" over the 4 years I've been using it. I maintain as much impact as I want for whatever movie I'm watching (within the size of my screen of course, with is a somewhat larger than 2.0 AR, using 4 way masking and zooming).
Personally, I don't bother, or see any need, to stick to some mathematically precise relationship in screen sizes, be it CIW, CIH or CIA. I never did such calculations when choosing different seats in movie theaters - I just ended up in a seat that, per movie, felt like where I wanted to be. I just replicated that flexibility at home.
Originally Posted by John Schuermann
You are referring to "Constant Area" projection. Anthony Grimani of PMI was an advocate of it a few years back, as an alternative to Constant Height. He prefers Constant Height overall but proposed this Constant Area as a solution for people just exactly like yourself. Here is a link to his press release about it (with the proper aspect ratio listed):
He and I discussed it at a shared training event at Stewart Filmscreen.
Here's a page with a video of the purported benefits of their process:
The impression given by PMI is that this is a truly novel, next gen idea, so of course it will cost you the fortune they are asking. Only the ultra rich need apply. (They will use only the most expensive products, projectors etc, in putting the system together no doubt).
However, this being AVS, one can often find people ahead of the curve. Constant Area was touted many years ago by forum member Bjoern Roy:
I put together two commercial masking systems (one for top/bottom masking, the other for side masking), with as large a screen as could fit on my wall and using a decent universal remote (even a Harmony) all sorts of user-designed pre-set image sizes can be programmed. Add in that lens memory functions are becoming ever more available on projectors, and it's amazing what can be automated.
I have around 20 pre-set image sizes for my masking, 10 of which also employ the 10 lens memory pre-sets of my JVC projector. So at a single press of a button, the screen size (masking) an image size (zooming) changes shape
in seconds, depending on how much impact I want for the experience, or depending on the quality of the source material. (I keep meaning to post a video of the system in action - haven't got around to it).
I know this is sort of like the guys who say "Kaleidescape is over-priced, you can do all that so much cheaper with an HTPC." But really the point is that someone can look at the PMI system and get the impression this is some unreachable idea if you aren't rich. But, resourcefulness is our middle name here on AVSforum.