Originally Posted by rabident
This question came up a few years ago when JVC dropped support for interchangeable lenses on their higher end line. The JVC rep (speaking only for himself
) said at the time it added about $2000 to the price of a PJ. Which is fine when a PJ costs $20,000 - $30,000+, but for mainstream PJ's it's cost prohibitive.
I would like to see long throw options make a comeback as well, but I also remember those lenses carrying a premium (like an additional $4,500 just for the long throw lens).
It's inconsistent from manufacturer to manufacturer. The Marantz DLPs carry a $3,000 premium for the long throw option, but the Sim2's carry only a $1,000 premium. I found it telling though that Bob Williams just mentioned in the Planar thread that all things being equal, a longer throw lens is less expensive.
Anybody know what the technical barriers to putting an actual 35mm camera lens on a projector would be? Is it the back focal length? A film negative is 24mmx36mm, so focusing light from a 12mmx21mm 1080p DMD should be no problem for a still camera lens. I don't know exactly how big the LCoS devices are, but I thought they were even smaller.
You can certainly buy very good film camera lenses for less than $3,000. You'd think if it were possible, a smart projector manufacturer would just design a projector with say a Canon bayonet mount, then provide off the shelf lenses. Seems like the economies of scale of using such a high volume lens would more than outweigh the extra cost of the bayonet mount. The $2,000 number seems a little dubious, a Canon EOS 5D body is only ~$2,500 and it's a whole lot more than a lens mount.
One of the things I would really like to see is built in anamorphic lenses. I don't know if it's feasible or not, but it would be nice to have an internal lens could automatically slip into place to stretch/squeeze the image. Most enthusiast rigs are small monstrosities and after market bolt ons by the manufactures aren't much better. Things are improving, don't get me wrong. I just look forward to the day that 2.35:1 CH is an option supported entirely within a PJ (both scaling & lens options).
I think we'll see native 2.35:1 projectors before integrated anamorphic lenses, at least on the LCoS side. A 2560x1080 panel should be within fairly easy reach if they've already got 4k panels working. I'd prefer this solution any way. (I know it's "really" 2538x1080, but 2560 is close enough and already a common computer resolution)