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mzsupa5
Joined: 11 Nov 2014 Posts: 11
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Posted: Wed Nov 12, 2014 8:55 am Post subject: Home made body cap lens for m43 |
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mzsupa5 wrote:
A while back I had a bit of a play with a 28mm FL lens unit rescued from a film compact. A diaphragm was cut from some dark coloured food packaging and all assembled using double sided tape into a body cap with a suitable hole carved in it. Some experimentation was necessary to come up with a compromise focus setting to produce samples like.
http://www.blipfoto.com/entry/3304431
I've since dismantled the components aiming to one day reassemble in permanent form which may become a reality soon as I'm joining a community group with access to CNC machines, 3d printers and laser cutters. Being able to make a simple mechanism adjust for zone focus would be good.
Tony |
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philslizzy
Joined: 07 Aug 2012 Posts: 4747 Location: Cheshire, England
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Posted: Wed Nov 12, 2014 9:44 am Post subject: |
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philslizzy wrote:
I love doing stiff like that, I've converted many. show us a pic of it. _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
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Lloydy
Joined: 02 Sep 2009 Posts: 7776 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Wed Nov 12, 2014 10:11 am Post subject: |
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Lloydy wrote:
Great picture from it, I'm with Phil on this subject and have no problems sacrificing old compacts to get a lens. _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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mzsupa5
Joined: 11 Nov 2014 Posts: 11
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Posted: Wed Nov 12, 2014 12:48 pm Post subject: |
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mzsupa5 wrote:
philslizzy wrote: |
I love doing stiff like that, I've converted many. show us a pic of it. |
No longer exists as such but mk2 well on the way this morning as I eviscerated a Canon Advantix T570 APS film compact for its 28mm f3.5 Ektanar All Glass Lens (impressive? .
https://www.kodak.com/global/en/service/advantix/t570/ownerManual/toc.shtml
I discovered that the lens cell sits in a nice long helical mounting tube, For lens retraction as well as focussing I think. After dremelling a suitable hole in a body cap, the shoulders of the tube sit at just the right distance to allow the lens cell to be turned to focus between infinity and pretty close. The lens cell has an integral shutter which I jammed open. A nice round aperture is formed by the open shutter. I've taken some pics of the components, just getting out the Araldite. The helix is a little sloppy so I will experiment with a little plumbers tape to add some resistance to turning.
Tony |
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philslizzy
Joined: 07 Aug 2012 Posts: 4747 Location: Cheshire, England
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Posted: Wed Nov 12, 2014 4:31 pm Post subject: |
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philslizzy wrote:
I used the cap and neck from a shampoo bottle once to make a focusing helix. It worked quite well. Plumbers plastic couplings are good too, a little lubrication on the threads make focusing smooth.
_________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
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mzsupa5
Joined: 11 Nov 2014 Posts: 11
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Posted: Wed Nov 12, 2014 4:44 pm Post subject: |
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mzsupa5 wrote:
Components, finished article and some samples. Finishing touch was to add a small screw as a movement limiter stopping the lens from falling into the body if screwed in too far. Focus is available from a bit past infinity to a macro ratio of about 1.1, meaning about 40mm of a scale rule across the frame of a pic is possible but not much helix left. This is more than twice as close as my 20mm f1.7 can achieve so a useful pocketable macro for flowers etc.
Tony |
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Lloydy
Joined: 02 Sep 2009 Posts: 7776 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Wed Nov 12, 2014 6:08 pm Post subject: |
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Lloydy wrote:
You can't argue with that ! Great results. _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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mzsupa5
Joined: 11 Nov 2014 Posts: 11
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Posted: Wed Nov 12, 2014 7:17 pm Post subject: |
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mzsupa5 wrote:
Thanks, I am quite pleased with the results. I just bought another Kodak from Ebay perhaps to try out an idea of a fixed tilt lens. Shoot right way up for "toy" effect or upside down for increased DOF.
Tony |
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Jesito
Joined: 24 Aug 2007 Posts: 5745 Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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Posted: Wed Nov 12, 2014 10:00 pm Post subject: |
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Jesito wrote:
Congrats, very imaginative solution!.
Thanks for sharing. _________________ Jesito, Moderator
Jesito's backsack:
Zooms Sigma 70-300, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro, 35-70, 35-80, Vivitar 70-210 KA, Tamron 70-250.
Fixed Industar-50, , Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Pancolar 50mm, Volna-3, many Exakta lenses
DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
TLR/6x6/645 YashicaMat, Petri 6x45, Nettar, Franka Solida, Brilliant
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S, Ricoh, Contax, Konica TC-X , Minolta 5000, 7000i, 3Sxi, EOS 500 and CX
Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
Compact Film Konica C35V, Voigtlander Vitorets, Canon Prima Super 105, Olympus XA2 and XA3
Compact Digital Olympus C-5050, Aiptek Slim 3000, Canon Powershot A540, Nikon 5200, SIGMA DP1s, Polaroid X530, IXUS55, Kodak 6490, Powershot G9 and G10
CSCCanon EOS-M, Samsung NX100 and NX210, Lumix G5, NEX-F3 |
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SVP
Joined: 15 Jan 2009 Posts: 665 Location: Greece
Expire: 2017-12-17
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Posted: Thu Nov 13, 2014 6:50 am Post subject: |
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SVP wrote:
Very ingenious, full marks! |
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philslizzy
Joined: 07 Aug 2012 Posts: 4747 Location: Cheshire, England
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Posted: Fri Nov 14, 2014 11:14 am Post subject: |
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philslizzy wrote:
Impressive results and a neat conversion.
I too have toyed with the idea of a tilt lens exactly the same as you. The problem I have encountered is sensor distance, which is too short with compact camera lenses allowing little room for the purpose. The image circle on these short focus lenses is quite small, especially the APS lenses. lenses from a 35mm cam are probably better.
let us know how you get on.
What is the helical from? _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
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mzsupa5
Joined: 11 Nov 2014 Posts: 11
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Posted: Fri Nov 14, 2014 5:25 pm Post subject: |
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mzsupa5 wrote:
Helix and lens are a set from a little Kodak Advantix. I have a tilt adapter for M43 which works ok with an Ensinor 24mm.
http://www.blipfoto.com/entry/3330198
Not many options for going wider (tilt zenitar fisheye |
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