That's gotta be a joke. There's no internal glass element onto which the 35mm lens can be focused. Note the last comment on the page. Besides, if in fact, you could achieve some degree of focus, it would be incredibly tedious.
The Letus does have a vibrating or rotating frosted
"glass" onto which the image is focused. I understand that film schools use these adapters with DV cameras to teach film shooting without the cost of film.
It adds up really quickly (about $3300 total):
Canon HV20 - $650
LetusMini - $1150
Cavision rails - $120
Ikan HD monitor - $750
XLR box (not pictured) - $140
Monitor arm (different then the one in the pic) - $120
2x long-lasting battery - 2x $130
Lenses were "free" because they were purchased for still photo camera
Pros:
-- the rig is small and can be used hand-held
-- the images are still HD (though not as sharp as camera without the lenses, obviously)
-- you use the blurry background to generate abstract shapes rather then worry of what it means (no more worry about over exposing bg!)
Cons:
-- light hungry (as all mini35 adapters) - be prepared to pour tons of light at your subject/scene
-- both camera and the rig has its own quirks that you need to know before becoming really profficient
the only way I can imagine that working is if the light comes through the 35 lens, and then goes into the camera's lens and re-reverses back to to be flipped going onto the sensor, and if the focal lengths are exactly right, they could create a focused image - certainly not worth the hassle IMO, and it would likely create a DOF so shallow that it might not be worth anything, not to mention the fact that it might only be useable in macro work period.
The way it works is that the image is reflected on a Ground Glass Screen and your cam films off this screen. The image will be up-sidedown but you fix this in post production.
I totally agree with you. you definitly need a larger preview screen when using DOF adapter stuff. I am inpressed with you rig setup. Please tell me what screen you are using and cable connections as well. I am doing a shoot in a weeks time and am looking at some preview options. I think your Canon has a firewire port, am I right?