I'm looking to rent a 35mm adapter for my HVX200. A friend said he used a Letus adapter, but so far I've come across a rental only for a P+K. Has anyone had experience with either. I'm hoping to find one that has minimal light loss, like a half stop and that I can put together with the camera without a rental house technician. Any help would be appreciated.
It depends on the rig but I've yet to see one that doesn't lose at least a stop- that's just the nature of the optics on those things. I think the Letus is about the easiest to assemble. It's not exactly bolt on and go but it's definitely not something you need to be at a camera house to learn.
Yes, Jeremy, I meant the P+S Technik, which seems to be the best of the lot. But the rental house in Dallas where I'll be shooting has the Letus, says it's a half-stop of loss, is user mountable, and the price is right, so looks like what I'll try.
I own two Letus Ultimate 35mm adapters as well as the Letus B4 Pro 2/3" relay lens. I use the adapters on our HPX170, EX1 and HPX2700 and many other cameras belonging to clients. I have found that they are very sharp edge to edge, comparing favorably to the P+S Pro35.
I would say that light loss is closer to a full stop. If possible, it is best to have the rental house build the rig for you, do the back focus, and if using a 2/3" camera and relay lens, a white shading file needs to be done for the Letus system(as you would with a Pro35).
Haven't noticed white shading errors with 1/3" cameras as much as 2/3". Even if an issue, I don't know of any 1/3" cameras that offer manual or auto white shading anyway.
Make sure you run the ground glass speed at max, 99, if an Ultimate.
Don't use shutter speeds above 1/500th. Be very careful about dust on the various elements, including between the achromat and the adapter rear element.