I have apparently
lost my CV 21 viewfinder.

So, I've been looking at what's out their for replacing it.
The simple choice will be to just get another one from Stephen but things are a bit tight money-wise right now.
For the moment, I have made a VF from one of my two Konica Wai Wai cameras. Not ideal as the VF was made for 17mm and it is a cheap plastic distortion filled wonder. But it works, sort of.
While looking at ebay, I did see those $20 ones referenced up thread and after reading what folks had to say about 'em, I think I will pass.
BUT. I also came across several DF-12 20mm finders Nikon made for the Nikonos. About $50 and I would expect the quality to be pretty good.
Would the fact that these are designed for underwater use affect the field of view when used above water?
Does any one know how big they are or if they are "high eye point" finders?
Thanks!
Rob