Thank you yarrellii. I love hearing and learning from other members.I'm a huge fan of Porro prism binoculars, and I use them on a daily basis. I have several on the most common configurations (8x30, 10x42, 7x50) and have had other flavours in the past. I love the grip, the wide body and the view. However, coming back to the OP question, I realise my binos are not classic or vintage, but some of the latest contemporary Porro prism binocular (Nikon EII, SE, Vixen Foresta and Ultima, Kowa YF, etc.). Over the years I've bought several nice examples of classic binoculars from CZJ, Swift and other brands (mainly Japanese from the golden era), and I've loved their construction, the way it feels as if they could withstand a couple of centuries in perfect operation, and then be serviced and go on for another couple of centuries without much problem. Nevertheless, I've always felt that optically I wasn't getting what I expected. This might sound weird. I'm aware that coatings have come a long way (although in terms of build quality many modern devices lag ages behind), but many times the overall view is not enough to compensate for the lovely feeling and sense of owning a part of history. I don't know if I'm alone in this feeling or if this is something others have experienced.
As a background, I don't have a "past or a history" with binoculars, I've started appreciating and eventually loving them in the second decade of the 21st century, so my "education in optics" is basically fully multi-coated contemporary devices. When using vintage ones I usually miss some sparkle on the view, it's hard to express (maybe it's like demanding a classic car from the 60's the performance of a current Ford Fiesta ST). There's a voice inside that tells me to love them, but then when I compare them to other binos I have, I feel the need so simply pass them on (I'm not a collector, so if I feel I'm not using a device long enough to justify owning it, I simply sell it).
Anyway, there is one Zeiss that keeps catching my eye, the so called "glass of the century", a wide angle 10x50 that looks wide and comfy. It usually appears on the 2nd hand market (usually at pretty hefty prices), and I've been very tempted, but I fear I might find the view underwhelming. What are your thoughts on that one? Some time I go I read Holger Merlitz's review and got really curious about it.