how to record a full image circle on 4x5

[wthaler]

hello,

I hope this was not coverd by now, at least I did not find anything about it.
I would like to record a full image circle on 4x5". the closest option I found by now is an Angulon 65/6,8 which has an image circle of 109mm according to the schneider website. that is unfortunatley still a bit too much for the 4x5.
5x8 inch would be too complicated for me, I would like a way to make it work for 4x5.
Has somebody any idea or experience with this type of experiment?

[Light Guru]

You will need to use a lens designed for a camera smaller then 4x5.

[David Lobato]

You will need a lens with an image circle smaller than 4 inches. Look for 6x7 or 6x9 medium format camera lenses with leaf shutters.

[Oren Grad]

Don't forget that the image circle gets proportionately larger as you focus in from infinity.

[blueribbontea]

Even the lenses from an old Kodak folder, like a 616 roll film camera would probably be too much. How about a lens and shutter from a 35mm Retina?

Bill

[sanking]

hello,

I hope this was not coverd by now, at least I did not find anything about it.
I would like to record a full image circle on 4x5". the closest option I found by now is an Angulon 65/6,8 which has an image circle of 109mm according to the schneider website. that is unfortunatley still a bit too much for the 4x5.
5x8 inch would be too complicated for me, I would like a way to make it work for 4x5.
Has somebody any idea or experience with this type of experiment?

38mm Biogon f/4.5 makes a beautiful circle on 4X5" film.

Sandy

[Carsten Wolff]

The 58mm Omegon may work (image circle about 100mm); You can also physically vignette any lens by either adding a snoot, or even a piece of cut out cardboard to the front of your lens
Using a 5x7 camera adds loads of options of course.

[jose angel]

Probably the simplest&cheapest way on a 4x5" is to use an enlarging lens. Maybe you can attach a L39 medium format one (75-105mm) on a #1 lens board in any way.

[Jim Noel]

A 101mm Ektar will produce a full circle image which barely touches the 4" width of 4x5 at infinity. Something in the 75-80mm range off a roll film camera will enable focusing closer and stil have the full circle. You do not want a wide angle designed lens. Perhaps a 120-135 telephoto meant for 6x9cm would also work. Haunt the local thrift shops.

[Jac@stafford.net]

38mm Biogon f/4.5 makes a beautiful circle on 4X5" film.

A virtue of the 38mm Biogon is that apparent coverage (or rather light distribution) does not change as it is stopped down.