Crazy Movements of View Cameras

[Jac@stafford.net]

A fisheye lens sees 180 degree of the subject, but behind the lens it does not project it 180 degrees.

I am not sure that is true - especially for miniature (35mm) formats.

[MAubrey]

I am not sure that is true - especially for miniature (35mm) formats.

Especially when it's a 220 degree AoV fisheye for miniature!

https://www.youtube.com/watch?v=RRxUc22xfyE

[xkaes]

I am not sure that is true - especially for miniature (35mm) formats.

I can assure you that my Minolta Rokkor-X 16mm f2.8 and 7.5mm f4 fisheyes both see 180 degrees in the front and "compress" it all to produce an image for 24x36mm film. Much like my Mamiya 37mm f4.5 fisheye sees 180 degrees in the front and "compresses" it all to produce an image for 4x5" film. I suppose I could create a fisheye for a submini, as well. Since my Minox has a 15mm lens, it would have to be about a 5mm lens. I'll think about it.

[rdenney]

I am not sure that is true - especially for miniature (35mm) formats.

A 180-degree fisheye generally illuminates a circle of diameter three times its focal length. I have several examples, including a 30mm Arsat that would make a nice full-circle fisheye on 4x5.

Rick "a fan of (full frame) fisheyes" Denney

[Jody_S]

In 25 years and thousands of images taken, I think I've used extreme movements on my B&J exactly once. But I was really happy to have a camera that twisted into a pretzel that day.

[xkaes]

A 180-degree fisheye generally illuminates a circle of diameter three times its focal length. I have several examples, including a 30mm Arsat that would make a nice full-circle fisheye on 4x5.

Rick "a fan of (full frame) fisheyes" Denney

My 37mm Mamiya Fisheye creates a circle with a diameter of 3.75" -- perfect for 4x5". I assume your 30mm creates an image of about 3.5" at infinity. That's great, too. Have you measured the diameter, by chance? What do you use as a shutter?

[xkaes]

In 25 years and thousands of images taken, I think I've used extreme movements on my B&J exactly once. But I was really happy to have a camera that twisted into a pretzel that day.

I use front standard swing and tilt often in my landscapes, frequently at the same time. Although I would never call any of these movements extreme, I'm more likely to use them with wider lenses which, in my case, the lens IC becomes the limiting factor -- not the camera's abilities. I then have to use some front rise/fall or rear (that's all I have) shift to cover the film.

[Bob Salomon]

In 25 years and thousands of images taken, I think I've used extreme movements on my B&J exactly once. But I was really happy to have a camera that twisted into a pretzel that day.

How many of those shots were product shots for catalogs or ads? The common movements used for scenery are different then the movements used when trying to capture the side, front and top of a cereal box while maintaining all of the right angles of the box. Or when shooting a table of jewelry without distortion.

[rdenney]

My 37mm Mamiya Fisheye creates a circle with a diameter of 3.75" -- perfect for 4x5". I assume your 30mm creates an image of about 3.5" at infinity. That's great, too. Have you measured the diameter, by chance? What do you use as a shutter?

It has never made it past the thought experiment, to be honest. I prefer full-frame fisheyes, and have them for several camera systems, including my Pentax 67.

Rick "no time for silly projects these days" Denney

[xkaes]

It has never made it past the thought experiment, to be honest. I prefer full-frame fisheyes, and have them for several camera systems, including my Pentax 67.

Rick "no time for silly projects these days" Denney

I sometimes prefer a full-frame fisheye, and I can still get that by cropping my 4x5" circular fisheye image down to a 70x70mm square or whatever rectangle I want. The results are still great because the Mamiya lens is great. There is an example in my article:

www.subclub.org/fujinon/gonefishin.pdf