Anamorphic rear adapters were used on telephoto canons and Nikkors (ca. 300mm) in the 1990s in US feature film production.

I believe some Panavision Anamorphics used rear element anamorphics in their design.

A product called the mesmerizer from Kish Optics was such a anamorphic rear element mounted in a spinning adapter, which created a psychedelic effect.

http://www.reduser.net/forum/showthread.php?43783-Kish-Optics-mesmerizer-lens

The effect is seen here ca. 1:30 and else where (where the whole screen stretches and squeezes:

@psyco +1 I dont have enough optics knowlage to know if its 1 : Doable 2 ; Doable with okay optical performance

@flyguy depends what you're looking for really. I'm after the lens flare, and the oval bokeh, for a scifi flick I'm starting later this year. Because lens flare is futuristic and all that :)

Bought an LA7200 awhile back but didn't care for the softness. Finally tried out a diopter and was stunned with the results. It's kind of a disadvantage to have to use them because it adds more to the setup and the process but the image quality increase is worth it. You can check out my thoughts and some test images here: http://stronzvanderploeg.net/2012/04/26/anamorphic-shooting-with-the-la7200-part-1/

@luxis

We want to matte the GH2's LCD screen at top and bottom to reveal only a 2.3:1 horizontal slice. Math is as follows: 16:9 is 1.777:1 - let's say 1.78mm width for every 1mm height [Anamorphic] widescreen aspect ratio is up to you; let's say 2.35 mm width for every 1mm height. The GH2's LCD 16:9 video visible area is 62mm x 35 mm 3 5mm /2.35=14.89 14.89 x 1.78 = 26.5 mm high

We want to put a 26.5 mm letterbox in a 41 mm LCD (Full LCD size, not just 16:9 video) 41-26.5 is 14.5. Half of that (7.25mm) comes of the top. the other half (7.25) comes off the bottom.

This is fairly low risk since you can crop as you wish in post.

Or you can just try printing this pic, aim camera and mark screen. BTW, Vitaly pointed out a way of using GH2's own guide lines.

I've got a couple of the Cinemorph filters coming (with and without bokeh). I don't think they work with wide angle lenses, I think you're looking at 80mm to get the effect going by their site.

How bout using a UWA lens, then adapting cinemorph filter and using zacuto evf's line guide so you can crop in post later to become anamorphic footage... any real disadvantage to that?

@johnnym I'm not even thinking about the lens... $$$$

@plasmasmp That bolex looks superb. Very sharp! And of course killer bokeh from the Olympus.

@plasmasmp Strange. Such close face framing, but it doesn't look like cropped at all. If you had used the lens without anamorphic lens, the background would have been compressed more... and it would have looked cropped.

@subco ha ha ...that is exactly the image(well,just the circle... ;) i get when i mount my 13mm elgeet lens(50's maybe...?) on the gh2 ...so it is not so useless after all ; )

There's a thing about anamorphic viewing experience that resembles the real life. In real life, I don't pay attention to every corners that my eyes see. The anamorphic screen is so wide that I can't catch all details in each scene. That seems more close to real life experience.

Anamorphic ratio still photos don't give such experience cuz I can examine every corners in photos. That is the anamorphic magic disappears as soon as I pause the movie.

I got it. Thanks!