The only thing I knew about 3D photography was the toy-like 3D viewers you see (or used to see) in tourist stores. They typically have ten slides with the size of a thumb nail. It was interesting, but that's about it. The ones that John showed me was shot mostly in Velvia slide film in square format. Not sure what size but might be two inch square. When I looked at it the first time, I almost fell off my seat. It was simply stunning. The picture seems to jump out at you in beautiful colours, and in glorious 3D! I never knew 3D pictures could be this gorgeous. Hai Tran is a prolific and accomplished photographer. The landscape pictures of Calgary's many parks are absolutely fantastic. After looking at the 3D pictures, the ordinary pictures will look flat and lifeless. Now I can see why some people are so obsessed with this medium. It's addictive, because that's what our eyes were created to see -- in 3 dimensions.
For sure this is not a hobby for everyone. For one thing, the slides are prohibitively expensive if you shoot medium format, and I am sure it takes considerable amount of time to master through trial and error.
Roses -- NEX-5N & Kodak Cine Ektar 63mm f2. Vignette is naturally caused by the lens. Click for larger.