8 x 10, 240mm lens

[TheFlyingCamera]

I have a 250mm f/6.7 Fujinon W as well as a 240mm f/9 Germinar W in Copal 1. Is that the Germinar you're referring to, or do you really have a 240mm Apo-Germinar? According to Arne Croell's article

http://www.arnecroell.com/docter.pdf​

even the Docter infinity image circle specification (which he questions with respect to whether it's sharpness- or merely illlumination-based) of 280mm for a 240mm Apo-Germinar wouldn't cover 8x10.

My pristine sample of the Fujinon is, of course, brighter for composing/focusing, but the Docter Germinar W has similar coverage when stopped down to f/32 or smaller, and it's sharper than the Fujinon. Usual caveats about sample variation apply.

I thought I replied to this earlier but I don't see my response, so I'll reply again. I have the 240 Germinar-W. I can say from personal experience that I've used it on my Canham 5x12 and applied significant front rise without running out of useable image circle.

 

[Ian Grant]

I thought I replied to this earlier but I don't see my response, so I'll reply again. I have the 240 Germinar-W. I can say from personal experience that I've used it on my Canham 5x12 and applied significant front rise without running out of useable image circle.

Post #9 you said it was the "Holy Grail" but it's a bit later you say you use one.

The other lens being missed is the 240mm f9 Apo Ronar, I have one missing the front cell (I bought it for the Copal #1 shutter).

Ian

 

[TheFlyingCamera]

Post #9 you said it was the "Holy Grail" but it's a bit later you say you use one.

The other lens being missed is the 240mm f9 Apo Ronar, I have one missing the front cell (I bought it for the Copal #1 shutter).

Ian

The post that went missing was the one where I responded to Sal's query about which version I have. I had originally called it an Apo-Germinar, but in fact the lens I have is a Germinar-W.

 

[awty]

Thanks for all the good advise. Should be helpfull for any one else looking for such sized lens.
The posty chick brought me a nice shiny 250mm f/6.7 Fujinon W this morning. Have to make a lens board and give it a whirl.