I have been very fortunate to obtain a complete Nikonos V set with a 15mm lens.
The viewfinder that came with this set is a very big beautiful piece of glass that has to be "clamped" to the back of the camera.
As such is a very solid construction but it covers the viewfinder. So its impossible to read the exposure.
The set came with the Sekonic underwater light-meter, so I am able to measure the light manually.
My problem is that everything is very bulky. Since I want to use Nikonos V with 15mm to take ambient light B&W images of the reef while free-diving having a slime lined set-up is important.
I wander what other "Hot-Shoe" mounted viewfinders might be a good alternative. Please keep in mind that I don't have a lot of time to peek though a small viewfinder. Witch is also my concern regarding measuring the light. Using the internal TTL meter or good old fashioned manual light-metering?