In addition to the ones I use, I find I still have 5 SEACAM S180 viewfinders. One is brand new, one is version 2.0 (with the O-ring sealed glass covering the rear of the viewfinder to prevent flooding viewfinder in the unlikely event housing floods or it is dropped in the water), and three are the original version of the S180 viewfinder with the +/- 3 diopter correction built-in. Priced for expedient sale:
New style S180 - $1000
Version 2.0 S180 - $850
Version 1.0 S180 - $700
info@stephenfrink.com