2/3" b4 Relay Lens that you can actually purchase for your 35mm adapter

Evangelos,

I agree with all that you posted, my point is that ANY 2/3" lens--even a 2/3" Cine prime @wide open-- is not the same as a 35mm DOF adapter/35mm prime lens. I typically use 2/3" wide angle ENG zooms on a Steadicam or jib, usually full wide. A 6mm Canon Cine prime would be the same idea and I wouldn't expect any difference in field of view or depth of field if both 2/3" lenses were at the same focal length and F-stop.
 
Agreed completely. Adapters are still desirable even on 2/3" cameras, even in light of the available cine primes, because you just don't get the same look. Hence why there's such a thing as the P+S Technik Pro35.
 
Barry,

That's my opinion as well. I've used Digiprimes and while they are good looking lenses(although not so impressed by the Digizoom), they don't have the shallow DOF and organic look of my Letus Ultimate. I can deal with losing 1/2 stop and I like the huge amount of lens options available by having PL, Nikon and Canon mounts.

Speaking of Pro35, I've got to sub-rent one later this month for my HDX900, but the Letus B4 Relay Lens is coming soon!
 
Since this is a thread for the GG.relay...

Ok after two weeks of efforts to put the full length test shot up on the web, I succeed … At first I tried Vimeo, but the quality was very bad… now I use H.264 with the latest flash player plug-in and a lot of colour management to make it look as I wanted to, on sRGB computer monitors. The best viewing is with Mac OSX computers and sRGB display colour profile. If it doesn’t play just upgrade with the latest flash player your web browser from http://get.adobe.com/flashplayer/.

 So this is the full test of the GG.relay with brevis35 and Varicam. Ohh, Inside Brevis35 is the prototype 3 of the FiberScreen… so no Cinevate ground glass in that Brevis35, just the FiberScreen… The relay used is the prototype of the new GG.Relay rev2… The camera was on shoulder, the whole setup was longer than my Cinestyle Canon zoom HJ11x4,7 KLL SC by 1cm, so shooting in a reporter style was easy… Varicam-F with battery, Chrosziel handgrip and GG.relay > Brevis35 > Zeiss ZF lens 7.2 kilos… in comparison with canon zoom 8.8 kilos… so relay, Brevis35 and Zeiss ZF lens was lighter by 1.6 kilos…! No achromat or condenser lens in the test… just the relay and Βrevis35 with the FiberScreen inside.

 For those that don’t know what is the FiberScreen go to the first post of this thread http://www.dvxuser.com/V6/showthread.php?t=154383 and read the FAQ…

 Also there is a detailed specification on with which setup you can view it best.

Under the specification there are detailed notes on what is the current setup of front lens, relay, vibrating etc. along with the time stamp of the video.

 The link http://www.motionfx.gr/ggrelay_galery.htm

 Enjoy your viewing; the movie is 17 minutes at 2.7kbits 1280 x 720.

 Waiting comments…
 
Sweet. More and more every day.

It'll be interesting to see what the trade-offs of having a zooming relay will be. I'm assuming a hit on sharpness, etc at certain focal lengths. Much like most SLR zoom lenses.
 
Keep in mind that our B4 relay was designed by an optical engineering team widely respected in their field, using specifically sourced LD glass, and coatings that did not exist so long ago. In other words, the MTF profiles compare very nicely to our Zeiss primes. Resolution specs for this project assumed a 2/3" chip with resolution well in excess of 1920x1080 native. We had Scarlet and the growing crop of 2/3" HD cameras in mind going forward to ensure our customers investment was leveraged to platforms under developement. Finally, the zoom range is very finite and designed only to deal with the transition from S35 to SLR (Vistavisionish) gate sizes. Given that it features 100% internal focus/zoom and zero physical breathing, and I think you'll agree it's a steal at $2700. If you use one of the Nikon f2.8d constant aperture zooms (17-35 or 80-200) with 100% internal focus/zoom, then you'll have a very good idea of what our relay is like. The biggest difference from the Nikons and our unit is a huge build quality difference. Our relay is designed to function with all those moving parts, and cannot flex even slightly under load. The chassis therefore is built like a tank.

Case in point, anyone using our flip adapter (and any Brevis version sold over the last 3 years) and Proteus rails is pretty much 100% set to go in the time it takes to remove the flip 72mm achromat (about 60 seconds!). This modularity simply makes sense given the currrent economic strata out there.

Our goal was not to be as good as what's out there...we wanted to exceed the performance and utility of the alternatives, and do it at a price that makes sense to independent film-makers.
 
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If the relay's performance at every focal length is the same and excellent or... exceeds the quality of other offers that are fixed then naturally it'll be a steal.

While price can be a dictator, in the professional world it's not a big deal to pay for the real deal. It's better than paying less and putting up with hassles when you're trying to use this stuff out in the field. Tim Naylor always says it best, alebit the hardest as well. Just sayin'.
 
This is the real deal :-) That's why we've never attempted to use a rebranded optic as a relay...we didn't want to waste anyone's hard earned cash. This is by far the largest R&D investement we've ever made. It was designed to be the best...nearly 2 years in development. The expectation has always been that a chip with resolution well beyond 1920x1080 would be used in the 2/3" format so we've therefore designed to that assumption with regard to edge-to-edge sharpness, field illumination and of course, MTF.
 
Thats an old thread for the only 2/3 camera on the DVXuser...

I wan't to announce the new web site of Motion FX and the avalability of our 2/3 B4 relay.

The GG.relay can do both frame sizes FF35 and S35 in a very competive price point and it is desinged for the moment for SGblade


For more info please visit

www.motionfx.gr
 
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