Imagon again

[Mark Sawyer]

I've used it both ways, and it's nice both ways. The softness from the little holes is subtle, even with the 5.8/7.7 disc with the little holes open. I like it best with just a touch of the conventional iris closed. It's also nice wide open, but very soft.

[Armin Seeholzer]

I've used it both ways, and it's nice both ways. The softness from the little holes is subtle, even with the 5.8/7.7 disc with the little holes open. I like it best with just a touch of the conventional iris closed. It's also nice wide open, but very soft.

Same here in Switzerland to!
Bob want they do it the hard way, which is really not needed, I just revered to what standing in my german booklet to the lens! And I read better german then writing in english;--))) Bob is revering to older written user guides which I also know, but which are deadly unpractically! But if someone like it the hard way, just do it!

Cheers Armin

[Old-N-Feeble]

I've never like the effect of the "little holes" on the disks. I DO like the overall effect, in the right context, as controlled by the center holes of the discs. I truly HATE what the little holes do to bright highlights.

[lee nadel]

200mm imagon no strainers f/8

[David Brunell]

200mm imagon no strainers f/8

Nice Lee, do you have any more examples with this lens?

By "no strainers f/8" do you mean you closed the iris down to that f stop? or Did you use the disk with the strainers closed?

[lee nadel]

f/8 with iris no disks

[David Brunell]

Intersting, how did you determine it was f/8? I have a copal #3 and it is unmarked.

[lee nadel]

i measured the diameter of lens divided into focal length. around f/8 with diffuser disk

[Mark Sawyer]

Okay, I was curious, so went to Seth's site and read Heinrich Kuhn's booklet on the Imagon. (Kuhn designed the Imagon, so I figured he'd know...)

http://cameraeccentric.com/html/info/imagon_2.html

Middle of page 4: "The following may be helpful to simplify correct focussing on the ground glass: with the small holes of the rotary diagram totally closed, thereby using only the central rays, not the slightest difficulty in focussing should be experienced..." He goes on from there for a while in more detail.

[eddie]

Intersting, how did you determine it was f/8? I have a copal #3 and it is unmarked.

measure the iris opening and divide......

easiest to use a metric measuring device to measure the opening. 250mm lens. 31.25mm opening. = f8.