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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 29 Mar 2012 (Thursday) 17:31
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My 90mm f1.8

 
yogestee
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Apr 02, 2012 04:51 as a reply to  @ post 14192940 |  #16

Looks like a work of art Phreeky..

Good quality photocopier lenses are mostly true flat field lenses as opposed to "normal" camera lenses. Meaning they are sharp from edge to edge, corner to corner.

Could be a bit of fun playing with this one.


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ChuckingFluff
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Apr 02, 2012 11:13 |  #17

That's going to be a blast to play with, I can't wait to see what you come up with.




  
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ZoneV
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Apr 03, 2012 09:58 |  #18

tkbslc wrote in post #14182106 (external link)
Forgive my lack of enthusiasm, but with all the great 85mm primes out there that are easily adaptable or native mount - why bother? My experience is that these kind of projects are fun as projects, but result in something you use for real photography like 1 time.

For 85mm I have no answer yet.

But I found out that two <10 Euro projection lenses are simmiliar to the ~140 Euro Meyer Trioplan 100mm f/2.8 lens (see my website). They have no iris, and are not that nice looking, but for the speical bokeh this is no problem and they are very well usable.
I have the original Trioplan and the projection lenses, and use them quite often.

I doesn´t use my EF converted Som Berthiot P-Cinor 75mm f/1.8 film projection lens very often, but for those who doesn´t look for extreme sharpness this could be a good lens too.


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joeblack2022
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Apr 03, 2012 10:24 |  #19

Subscribing, I'm curious to see how this turns out! :)


Joel

  
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j-dogg
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Apr 03, 2012 11:52 as a reply to  @ joeblack2022's post |  #20

This week I'm going to start measuring everything for an adapter, the idea is a standard EOS bellows, OEM metal EOS mount and a bracket I'm going to fab up. The lens has a bracket that screws on to it with 4 mounting holes, it's very close to the standard EOS system.

All in all, I'm looking at around 75 dollars to make something that would cost about 8 times as much. The bellows is going to add roughly 35-40mm of distance right off the bat, so that will become an issue. Infinity focus isn't something I absolutely need, this will likely end up being used as a portrait lens, but I'm going to try to get it as close as possible. PRobably an inch or so of metal will have to come off the back of the lens, as well as some metal on the aperture control ring.

My biggest worry is when I cut everything of getting metal shards inside the lens, I might try to remove the elements prior to modification.


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plasticmotif
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Apr 03, 2012 15:29 |  #21

Holy aperture blades, Batman.

Can't waitto see what you come u p with.


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bpark42
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Apr 03, 2012 15:35 |  #22

That's funny, I grew up in Chagrin Falls.

Looks like a cool project.




  
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joeblack2022
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Apr 03, 2012 15:41 |  #23

plasticmotif wrote in post #14204186 (external link)
Holy aperture blades, Batman.

Have you seen the Tair-11?


Joel

  
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j-dogg
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Apr 03, 2012 16:38 |  #24

joeblack2022 wrote in post #14204258 (external link)
Have you seen the Tair-11?

I almost bought one of those for that exact reason. Don't they have like 26 or some ridiculous number of aperture blades?

You can argue about Communism all you want, the Soviets knew how to make lenses.


5D / 400d / 70-200-4LIS / 50 Mk.I / 28-70
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Graphic View I 4x5 / Schneider 180 / Meyer 135 / Ektar 127

  
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My 90mm f1.8
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
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