Hi Bondo, thanks for the reply.
I thought that might be the case but I was hoping I could get rid of it all together and only have it appear when half pressing the shutter to take a light reading. Oh well. The split prism is in fact wide enough to allow for slightly off center framing and the frenzel (sp?) is very useful as its 13mm in diameter and easy to use. I'm impressed with the screen overall, though I am disappointed about the not being able to get rid of the focus patch.
But... The Frenzel doesn't seem to be anywhere near accurate. I don't know if this is a shim issue or, even worse, a decentered lens?
Brightscreen actually sent me the wrong screen, which I only found out after having it installed. I wanted 8x10 crop etchings but instead was sent a basic grid. Also, and this concerns me more, but I'm not sure if the manual focus was calibrated properly in the first place as it seems on distances further than 1.5 meters I'm getting significant back focus issues. The problem is that I'm pretty sure I was getting the same problem with the stock screen. I thought it must have been my eyes so I was relying on the electronic focus confirmation, which vastly improved things and seemed accurate enough for me not to worry.
On the other side of things, I'm wondering if it could be a lens issue. The only MF lens I have is the Zeiss ZF 35mm and it seems, when reading off the distance scale on the lens when focused, it isn't accurate at all. It reads further than the intended point of focus is.
Anyway, so I'm returning the screen (if they accept it) and getting it changed for the 8x10 mask I wanted. The Frenzel patch doesn't seem accurate and I'm getting bad back focus...
Help!:deadhorse: