35mm adapter, lens, rail system FS

Dennis Wood

DVXuser Sponsor
Looks like the original didn't make the server transfer...so here it is again:

Folks, my 35mm adapter is for sale. Details including link to clips, pics, res charts etc are here.
This is the latest clip
What's included:
1. Aluminum/stainless steel rail system. It is designed to mount the camera upside down, or upright. It is completely adjustable to allow balancing on a tripod.
2. Spinning adapter similar to the M2 design. Uses a DCX condenser lens and coated high quality achromat.
3. Mounts to 72mm filter ring. I have two step down rings 72->55 + 55->43mm available.
4. A Minolta ROKKOR 45mm F2 SLR lens.
5. A set of five optical acrylic GGs. These are laser cut to .1mm tolerance and offer heavy to light diffusion. They are 1mm and 1.5mm in thickness. Changing them takes about 2 minutes.
Light loss as measured in back to back res chart tests ranges from 1.4 to 2 f/stops depending on GG attached. These tests were done with a 50mm F1.4 lens.
Two internal AA batteries are used. Expect about 12 hours continuous operation from a set. All parts are aluminum except for the center barrel section which is ABS (you can't tell looking at it).
The adapter is 5.75" in length, 3.6" wide, and 4.75" in height. The rails are 17" long. Why am I selling it? I'm working on a flip version meaning the aluminum case is too small. I'd also like to recover some of my costs on this project. Many hours, and literally hundreds of dollars have been spent poking, blasting, drilling, testing, posting footage/getting feedback and refining this adapter.
I'm am asking $440 US for the whole shebang.


These were requested by an HVX user. They are stills captured from the GS400 with the adapter attached at 2278x1728 (resized for web)
GS400 still shot 1, adapter attached.
GS400 still shot 2, adapter attached.
Note that with the 50mm f1.4 at this range, the DOF is extremely shallow...only about an inch.
 
No, not on a DVX...however I would virtually guarantee it would work right out of the box. The DVX issue is always close focus distance. In other words, with some adapters where the rear tube is very short, and the macro is too week, you can't zoom in enough. The adapter is adjustable for backfocus, and has lots of zoom room left, even with my wider GS400 16:9 CCD footprint. You'll note that my rear tube is longer than most. This allows the use of a weaker achromat and you'll see from the charts that it has none of the distortion issues of the Letus and M2.

If anything you'll get better results from the adapter than the GS400 due to the DVX's better light sensitivity.
 
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