Surplus Shed 6" f/1.25 Triplet

[papah]

I recently bought one of these puppies:
http://www.surplusshed.com/pages/item/l13001.html

I mounted it on my Cambo 4x5 (with gaffer tape, no lensboard), and made some images with my Camerafusion digital back and Nikon D3. Here is one:


This is a 36mm x 70mm (approx) crop from the center. Of course, there's no iris, so this is wide open at f/1.25.

Sort of large-format...

[Toyon]

Your image is out of focus.

[BarryS]

Interesting. $250 is a big leap of faith for a surplus lens of unknown qualities. I'm not sure I see a big difference from a dollar store magnifier lens, but it has some interesting qualities.

[BrianShaw]

I LIKE IT, BRUCE; Very Nice; Thanks for sharing!

[papah]

Thanks for the comments.

Here are several more from this lens, along with a shot from my 12" Kodak Portrait Lens at 4.8, shot through my office window during a Seattle monsoon.

If I can figure out how to mount and shade that huge glass, it might produce some interesting images.

(More in the Soft Focus galleries on my website...)

[BarryS]

Those are pretty cool--it looks like the fog rolled in. It might be interesting to take advantage of the incredible speed and shoot in some low light. Some good stuff on your site and now I completely understand why you bought the achromat.

[papah]

Daniel Buck posted a picture of this lens:

http://www.largeformatphotography.in...&postcount=279

It's Large!

[Mark Sawyer]

I wonder if this was made as the positive front group of a telephoto, and is missing the negative rear element? Regardless, it's a fascinating objective. Excellent work, Bruce, and thanks for posting it!

[SteveKarr]

I think it's sharper than my 11" Verito wide open !!

[EdWorkman]

Mark wrote "I wonder if this was made as the positive front group of a telephoto, and is missing the negative rear element?

Surplus shed sez abot the 195 f1.9 "These were made for a custom camera, are slightly used, and in excellent condition. Original cost was several thousand dollars each. We have no specifics regarding the camera. Our L13003 negative achromat can be used with this to extend the triplet's focal length (came from the same camera).
AND for only $20 L13003:
"Multi-coated, cemented doublet negative achromat. Front element is 90mm diameter and back element has a clear diameter of 65mm. Focal length is -78mm.
This can be used with our L13001, 155mm diameter triplet to extend its focal length (came from the same camera)

Optics mavens please do the math for the combination?