I really like that first one... like a Turneresque painting and nice
geometry too.
Not crazy about the other two... looks like you're having fun :-)
ann
On 2/24/2013 11:25, Jostein Øksne wrote:
http://www.alunfoto.no/temp/heligontest/index.html
I have purchased an old optic from an X-ray machine, a Rodenstock 100mm
f/1.6.
First I tried it on the 645D, just holding it before the bayonet to see
if there was any vignetting. There wasn't! So the image circle is quite
decent. The image of the rotten plant is shot with this combo. I think
the OOF rendering is quite interesting and look forward to play more
with this setup.
Then I scavenged an old and broken Pentax-A 50mm f/1.7. I picked out all
the optical elements and mounted the Rodenstock into the focusing
helicoid using generous amounts of gaffatape. The other two images are
produced with this setup. The "jesus-light" image at f/2.8, the daisies
at f/8.
To have the iris behind all the optical elements like this is probably
all wrong from a theoretical perspective, and the true size of the
aperture is probably not as advertised. Yet I must say I like the results.
As the "jesus-light" image shows, the lens comes with an odd compliment
of internal reflections. I believe it can be used to good effect on
occasion.
Cheers,
Jostein
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