Shallow D.O.F 50 Nocti or 75 Slux

[joebt]

Which one has the potential of producing the shortest Depth Of Field, the 50 Noctilux or the 75 Summilux? I have the 75 Slux, and still dream about the Noctilux. I really like the signature of the F/1 images.

I have produced images that are similar with the 90 Cron

http://www.pbase.com/image/102874645

 

[maddoc]

With both, the 75mm Summilux-M and 90mm Summicron-M a much shallower DoF compared to the Noctilux is possible. The Noctilux is not about shallow DoF, IMHO ...

 

[Rayt]

The Noctilux has a really different look than the 75mm Summilux and I don't think it is about dof. I find the 75mm much easier to focus, at least I get way more in focused keepers. And wide open at f/1.4 I get a sharp image where I focused it. With the Noctilux at f/1 I get about 50% of them right and even when it is in focus there is a softness even at the plane of focus.