yet another question about the 65mm choice for Horseman 6x9 entendable to 4x5

[Bernice Loui]

There is also a physical size trade off that is a given for a Retrofocus lens design -vs- "Biogon_ish" lens designs.

Those who venture into LF often discover it is a very different world of optics that are designed and used with LF cameras. IMO, this is part of the reason why those venturing into LF for the first time tend to be camera centric instead of what lenses can be used on a given camera to achieve the image goal centric.

Camera brand and model choice often dictates what lenses from that camera brand can be used. While this has changed with the introduction of mirrorless digital cameras and easily available adapters, this often is limited to manual focus lenses on the modern mirrorless digitals. In the LF camera example, they have always been essentially independent of any lens brand due to their essentially light tight box that is flexi in the center.


Bernice

[landstrykere]

btw about the LF optical specificities, I see now that a common set of command line graphical tools that we use on Unix/BSD/Linux, "netpbm", has an addon "pnmctrfilt", supposed to emulate in software what center filters do optically:
https://www.fourmilab.ch/netpbm/pnmctrfilt/
of course this is for people who don't print to paper...