HighNorth
Well-known member
I think all designs part from the idea that the index finger is used to turn the focus wheel. The typical open bridge designs from Swaro or others require to space the index finger a little from the other fingers that are wrapped around the barrels, while the new Zeiss HT or SF reduce this spacing (see this pic here). If this really matters, I don't know, but anyway all designs let you focus with the index finger.
More classical designs with a larger bridge, like Leica Ultravid, Nikon EDG or Swaro SLC require you to place one or more fingers on the bridge while the index is placed on the focus wheel. The Leica Ultravid has a very large focus wheel that lets you use the index and the middle finger alternativly, which is good for quick focussing from close to far. I like the Leica focus (I use the Ultravid), but I imagine that the SF system is also very comfortable.
Hi Florian! Thanks for clearing that up!