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dickb
Joined: 04 Apr 2008
Posts: 821
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 Posted: Wed May 07, 2008 1:54 pm Post subject: My latest Frankenstein lens experiment |
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dickb wrote:
Just a picture of my latest unusual combo:
I'll post what it is exactly later, first I'll give you an opportunity to guess. If anyone can figure it out correctly, I'll be impressed. And maybe I'll tell you to get out more - which is exactly what I'm going to do right now, hunting for subjects with the shown combination..
I'm fond of trying weird combinations. For instance, I can tell you that when you put two crt-nikkor 55/1.2 back-to-back you're rewarded with oceans of CA..
Dick |
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Flor27
Joined: 13 Sep 2007
Posts: 1195
Location: Paris, France
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| Posted: Wed May 07, 2008 1:58 pm Post subject: |
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Flor27 wrote:
Looks like for me as a reversed mount lens elements from a nght vision stuff or maybe a video camcoder...
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Switching from M42 to Minolta MD & Contax/Yashica |
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Wed May 07, 2008 4:24 pm Post subject: |
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luisalegria wrote:
As Dickb said, or possibly reversed Tair 300mm/some version of Novoflex. |
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Flor27
Joined: 13 Sep 2007
Posts: 1195
Location: Paris, France
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| Posted: Wed May 07, 2008 5:27 pm Post subject: |
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Flor27 wrote:
| luisalegria wrote: |
| As Dickb said, or possibly reversed Tair 300mm/some version of Novoflex. |
Nice catch !
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Switching from M42 to Minolta MD & Contax/Yashica |
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Farside
Joined: 01 Sep 2007
Posts: 6549
Location: Ireland
Expire: 2013-12-27
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| Posted: Wed May 07, 2008 6:01 pm Post subject: |
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Farside wrote:
It's a Pigriff-C for sure, I'd guess with some enlarging or projection lens bunged in it.
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hacksawbob
Joined: 28 Feb 2007
Posts: 1293
Location: LANCS UK
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| Posted: Wed May 07, 2008 6:58 pm Post subject: |
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hacksawbob wrote:
It lives!
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padiej
Joined: 05 Apr 2008
Posts: 244
Location: AUSTRIA - Burgenland
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| Posted: Thu May 08, 2008 10:15 am Post subject: |
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padiej wrote:
PHOTOSHOOTING AND HUNTING - PHOTOHUNTING ???
Is there a Visier inside, a cross to hit the target?
You get troubles by entering a airplane, i am sure!
regards Peter
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dickb
Joined: 04 Apr 2008
Posts: 821
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| Posted: Thu May 08, 2008 2:04 pm Post subject: |
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dickb wrote:
| Farside wrote: |
| It's a Pigriff-C for sure, I'd guess with some enlarging or projection lens bunged in it. |
Quite a few knowledgable folk around here. It's a Novoflex Pi(stolen)Griff, and normally you would mount an appropriate lens head using the bayonet mount. Internally there is a light baffle which happens to be threaded, 58mm diameter to be exact. So I reverse-mounted an enlarging lens, a Schneider-Kreuznach Apo-Componon HM 4/150 to be precise, with a male/male 55mm ring and a 58/55 stepdown ring. In this fashion the PiGriff acts like a large variable extension tube. Apart from the squeezeable focus it has a draw tube, so the total extension varies from 24 cm to 35 cm.
This configuration looks rather uzi-like, with its original lens head (a Leitz Telyt 560/6.8 in my case) it's more grenade launcher like. Both attract odd looks from the general public.. |
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dickb
Joined: 04 Apr 2008
Posts: 821
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| Posted: Fri May 09, 2008 8:04 am Post subject: |
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dickb wrote:
And here's a result from this contraption with a 30d:
The total extension is somewhat extreme to use with a 150mm lens. So next on my list is figuring out how to combine the PiGriff with my Novoflex Eos-Retro, to turn it into a giant automatic extension ring for my Sigma apo tele macro 400/5.6... |
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dickb
Joined: 04 Apr 2008
Posts: 821
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| Posted: Fri May 09, 2008 3:50 pm Post subject: |
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dickb wrote:
OK, so the combination Novoflex PiGriff and Novoflex Eos-retro is possible:
For those of you fascinated by adapter rings, the sequence of rings used is:
eos-retro (EF bayonet male - male 58mm)
female 58mm/female 58mm
58mm/52mm step down
reverse ring 52mm/m42
m42 female/m42 female
m42/T2 adapter
T2/Nikon F reverse adapter
Novoflex NikA ring
PiGriff
58mm/55mm male/male
55mm spacer
55mm/58mm step up
eos-retro (female 58mm - EF bayonet female)
In combination with a 400mm apo tele macro lens from Sigma this yields nice magnifications with extremely long working distances and considerable light loss. A quick and dirty example (not my normal style of macrophotography):
Maybe I should try it with my Nikkor-Q 400/4.5 instead..
Walking around with this combo it does resemble a heavy machine gun (mg42) - must be all the war movies this time of year.. |
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