There is another question about the use of blur in photography current here at the moment-
Jim Galli is a regular poster over on the Large Format Forum, Apug, and others,
and is almost single-handedly responsible for pushing the prices of antique soft focus lenses through the roof.
There is nothing like blur to polarize opinion, photographically-
some embrace the concept, many more claim that if you’ve seen one, you’ve seen ’em all-
Personally, I enjoy his exploration of optical designs of the past-
His site is an illustrated Vade Mecum of venerable old lenses-
and in my opinion, well worth clicking on every section-
In addition, he uses Pyrocat HD developer quite a bit-
something I’ll have to try myself sometime-
Most of what he was talking about was alien to me but I was interested on the strange dof where the transition was extreme. The bottom image on this page for example. In laymans terms Joseph what are the conditions to create something like this?
You managed to pick one of his more ‘normal’ lenses Alan-
The Series II Euryscope was a Rapid Rectilinear design-
so reasonably well corrected-
14″ is about 360mm; shot at f/4, you’re going to get very narrow depth of field-
These pictures were shot on 8×10″,
so in 35mm terms, each of those people’s heads would probably occupy a full 24x36mm frame-
more or less.
He might have used some tilt on the front to get the front and rear ranks in focus at the same time;
that probably helps to throw the background even more out of focus-
Again, the rectilinear lenses are corrected-
the soft focus and Petzval designs are just a bit madder-