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no t really sure all the inflight models are either 2x or 1.75 like the centavision company sometimes isco and kowa optics where mixed together.i think inflight started in the late 60s i had a rare 1.5x one once very early isco.. they messed about with film formats projecting super 8,16mm and 35mm flat pack pull down complex projections systems costing 10s of thousands even back then so the lens optics would all of been custom order maybe compression matching whatever new system they where using.high end jet set entertainment...some optics are lovely small others as big as a isco 54. i have seen so many trashed ones as the flight crews worked the projectors,nearly all will have dryed up focus helicoid grease. lovely clean flares on some better than iscorama the compression differences probably relates to reduction prints of 35mm hollywood scope movies reduced down to different film formats. that optic looks like a later generation so would of come off a posher plane offering 35mm projection maybe. london new york maybe.. cheaper trips from luton airport to benidorm probably projected super 8 using a proskar : ) 4 mins in check out the lovely old inflight projector. http://www.youtube.com/watch?v=vnFCpz2pmf0&feature=related

well it would be hollywood quality optic look at that projector system 35mm that was for super posh routes.   the inflight company would pull the whole projector system out and replace with a serviced one rather than fiddle on the plane mainly for security and safety reasons. they must have had teams of people working near the airports. the design of your one as i said looks late generation with the custom stuff a defective lens would not of left the factory kowa where doing projects with isco but also competing with them for contracts japan would be way to proud to be slipping faulty stuff into high profile contracts. those optics would probably have been made by the same dept that made the kowa movie optics if you look at the optics you can see clearly they look nothing like most kowa.

  I did a lens cap test.  (actually made a video too)  The noise/grain has a very consistent ascent.  I'm not sure how accurate these tests are but I remember watching one where they used the GH2.  This seems a bit more consistent. I hope I understood you correctly when you asked about trial videos at a lower ISO.  I know I already posted this response on Vimeo but I just wanted to reiterate it in case anyone else was wondering.  The Extended ISO does not seem to translate to video, only pictures.  But the ISO Increments option will get you more ISO between 200 and 6400.   Thanks for the response!  I've been watching your videos.  Wonderful!

No, you will not get a wider angle of view by using the Speed Booster. With the Speed Booster, your NEX acts like it has a full frame sensor. You must use full frame lenses with the speed booster in order to not vignette.   As it is essentially full frame, you have to treat it as such when selecting a lens to use.      For example: with a KOWA on the NEX camera without Speed Booster, the widest lens useable without any vignetting is probably around 45mm.   On the same NEX with Speed Booster, you must treat it like a full frame camera. The widest lens useable without any vignetting is around 75mm.     Because of the effective "sensor size" difference, these two lenses have pretty much the same field of view (even though they are different focal lengths). So the 58mm Helios, while great an NEX without the Speed Booster, would certainly vignette with the Kowa, just as it would on your 5DII. As itimjim says, treat it like a full frame EOS-mount camera when the Speed Booster is on . . . use 75/85mm and beyond lenses.   The difference is one of light intake and depth of field. As essentially a full frame converter unit, the Speed Booster brings full frame-equivalent shallow depth of field to the NEX cameras. Because it shrinks a full frame image circle to the size of an APSC sensor, the light is also brighter, giving you an extra stop (can't remember exactly how much extra, but it is a fair bit).

Hopefully that working model really will be at NAB. I'll be there and I wanna try it out!