lenses in sinar db mounts

[thedeep]

hi guys, got a noob question.

I'm getting into 4x5, and I picked sinar mostly due to how the whole system works (modularity, reusability, reputation) all which should ease my frustration with the foray into large format.

so I had a question about sinar db mounts, like this (http://www.usedcamerabuyer.com/digital-camera/Kodak_ProSLR_062207_138_EH.JPG).

the reason the lens is so far front mounted is to clear the sinar auto shutter, or are there some focal node vis-a-vis the tilt axis issues I'm not aware of?

thanks!

[Armin Seeholzer]

"the reason the lens is so far front mounted is to clear the sinar auto shutter"
This is the reason and nothing else!
Armin

[Rider]

Obviously it also affects tilt. I believe (somebody correct me if I'm wrong) that Sinar has angles worked out so that tilting is very convenient even though you're tilting around the lens axis.