Lenses and Optics
Digiscoping I’ve always been a bit fascinated by digiscoping. For those who are out of the loop, digiscoping involves taking images through a spotting scope rather than a camera lens. The advantages are obvious. A spotting scope provides magnification equivalent to a lens of 1,250 to 3,000mm. Who wouldn’t want that? Not to mention a […]
Other
Of course, we really couldn’t stand the idea that there was a lens somewhere that we didn’t own. So, Tyler went and got us a new telephoto, the Sigma 200-500mm f/2.8 for Canon (Available for rental, of course). It came in a rather large box today.
Other
For those who don’t visit often, this isn’t a lens review. It is simply my impression and the Imatest results for the first batch of Zeiss ZE 15mm f/2.8 lenses that we did before they got shipped out to our customers. Particularly with a very wide lens like this, Imatest results must be taken for […]
Resolution Tests
I get asked a simple question almost every day: Why do your results say this, Joe’s results say that, and Bill’s results say something different? The questions surprised me at first; I grew up in biological and medical research and took it for granted everyone expected different tests to have slightly different results. But different […]
Technical Discussions
I started this series to simply demonstrate a well-known fact; that contrast detection autofocus in Live View was more accurate than standard Phase Detection autofocus for still subjects. It ended up being a bit more than I’d bargained for just with the Canon cameras. After that series was done, I promised several people that I […]
