Depth of Field Adapter on Steroids

petrochemist wrote:

fferreres wrote:

Tons o Glass 0 Class wrote:

fferreres wrote:

Quick question to thread follows, can a bellows like this be a starting point for trying out the kind of thing in this thread?

https://www.ebay.com/sch/625/i.html?_from=R40&_nkw=%28double%2C+dual%29+bellows&LH_TitleDesc=0

Of course, this is terribly expensive, but I am thinking more generically, starting with something that already has movement of rear, mid and front, and think a monorail setup could be good. I am thinking 4s5 would be best for experimenting as well.

That looks like a good way of doing it. Having bellows on both ends will allow using more than one lens (being rigid and of a fixed length, the DIY Perks rig will only work with one lens).

Similarly, Bosun Higgs mentioned putting two large format cameras back-to-back - a couple of leaky Omega 45s (patched with gaffer's tape maybe?) would be pretty attainable and worth experimenting with, but you probably won't be approaching the DIY Perks rig's DOF emulation of f/0.4 on a 4x5-based rig - you'd need a f/1.5 or f/1.6 lens for that, and I don't know that there are lenses that fast for the format, especially not cheap or readily available ones.

I missed Bosun's comment but was thinking the same thing. Maybe some monorail can be customized precisely without having to hack anything.

I've been planning on trying that, I already have a rail extension & a spare standard so mounting bellows either side of a screen should be easy.

As I mentioned elsewhere here, the Faboky project I'm writing up uses a Fresnel magnifier sheet cut to a 7" circle, giving around 290mm f/1.6 for under $3. It's a lousy lens, but what f/1.6 that covers 4x5 isn't lousy?