Author Topic: Projection lenses  (Read 131971 times)

Matthew Currie

  • NG Member
  • *
  • Posts: 676
  • You ARE NikonGear
Re: Projection lenses
« Reply #435 on: January 10, 2021, 04:30:10 »
This is nice! What is the maximum aperture of that Wollensak?
It's 3.5.  Originally came, by the way, from a Revere projector with no magazines, and a different lens diameter from the Sawyer projectors I actually have the trays for, so no compunction about taking a hacksaw to the barrel.

Matthew Currie

  • NG Member
  • *
  • Posts: 676
  • You ARE NikonGear
Re: Projection lenses
« Reply #436 on: January 11, 2021, 06:52:34 »
Rummaging in the commodious barns I find another, this a Bell and Howell 5 inch 2.8, from an odd combination 8mm and filmstrip projector I stored away but, since I haven't used it in over 30 years I figure it's safe to steal the lens.  This one goes in another scrap mount from a dead zoom,  and with a tiny bit of trimming will go to infinity, but since the sun rarely shines here in January I can't test for interesting outdoor highlights.  Here, however, is how it goes as a macro.  Focused on a rail, with a little contrast and sharpening in post, this one isn't likely to displace the micro Nikkors any time soon, but it might work for portraits.

Dr Klaus Schmitt

  • NG Member
  • *
  • Posts: 1005
Re: Projection lenses
« Reply #437 on: January 15, 2021, 16:35:34 »
Btw. has anyone seen or used the PRO-NIKKOR projection lenses yet?
formerly known as kds315

rosko

  • Homo erectus manualfocus
  • NG Supporter
  • **
  • Posts: 1311
  • France/Uk
Re: Projection lenses
« Reply #438 on: February 05, 2021, 16:49:50 »
I got recently the tiniest projection lens I have never held :

Carl Zeiss Jena Tessar 70mm f/3.5

Diameter :30mm;
lenght : 33mm;
Weight : 30 gr.  ???

In order to try it on my Z6, I had to machine a little adapter from acetal (POM) which is a very hard plastic stuff.

Francis Devrainne

rosko

  • Homo erectus manualfocus
  • NG Supporter
  • **
  • Posts: 1311
  • France/Uk
Re: Projection lenses
« Reply #439 on: February 05, 2021, 17:01:53 »
And few pictures :
Francis Devrainne

rosko

  • Homo erectus manualfocus
  • NG Supporter
  • **
  • Posts: 1311
  • France/Uk
Re: Projection lenses
« Reply #440 on: February 05, 2021, 17:04:41 »
One more :
Francis Devrainne

Dr Klaus Schmitt

  • NG Member
  • *
  • Posts: 1005
Re: Projection lenses
« Reply #441 on: February 25, 2021, 15:53:28 »
Angenieux f1.4/90mm projection lens does spring...





formerly known as kds315

golunvolo

  • NG Supporter
  • **
  • Posts: 6742
  • You ARE NikonGear
Re: Projection lenses
« Reply #442 on: February 25, 2021, 17:36:25 »
Beautiful. I especially like the use of the lens in the first image of the bunch.

 Thanks for sharing it!

Dr Klaus Schmitt

  • NG Member
  • *
  • Posts: 1005
Re: Projection lenses
« Reply #443 on: February 25, 2021, 21:47:18 »
Beautiful. I especially like the use of the lens in the first image of the bunch.

 Thanks for sharing it!

Thanks! Seems we have similar taste! ;-)
formerly known as kds315

rosko

  • Homo erectus manualfocus
  • NG Supporter
  • **
  • Posts: 1311
  • France/Uk
Re: Projection lenses
« Reply #444 on: February 26, 2021, 08:41:54 »
Beautiful. I especially like the use of the lens in the first image of the bunch.

I agree !

Interesting to see the difference of bokeh between image 1 and image 2.  :)

Matter of distance from the subject ? (could it be an iris in this projection lens ?)

Francis.
Francis Devrainne

Dr Klaus Schmitt

  • NG Member
  • *
  • Posts: 1005
Re: Projection lenses
« Reply #445 on: February 26, 2021, 17:40:50 »
I agree !

Interesting to see the difference of bokeh between image 1 and image 2.  :)

Matter of distance from the subject ? (could it be an iris in this projection lens ?)

Francis.

NO, there is no iris in this projection lens, hardly any such projection lenses exist with iris!
formerly known as kds315

ColinM

  • NG Member
  • *
  • Posts: 1789
  • Herefordshire, UK
    • My Pictures
Re: Projection lenses
« Reply #446 on: February 26, 2021, 22:13:45 »
Angenieux f1.4/90mm projection lens does spring...

Ahh, beautiful  Dr K

rosko

  • Homo erectus manualfocus
  • NG Supporter
  • **
  • Posts: 1311
  • France/Uk
Re: Projection lenses
« Reply #447 on: February 27, 2021, 01:12:34 »
NO, there is no iris in this projection lens, hardly any such projection lenses exist with iris!

Thanks for this info !
Francis Devrainne

Dr Klaus Schmitt

  • NG Member
  • *
  • Posts: 1005
Re: Projection lenses
« Reply #448 on: February 27, 2021, 21:01:48 »
Zeiss Ikon Ernostar f1.8 100mm





formerly known as kds315

John Geerts

  • NG Supporter
  • **
  • Posts: 9120
  • Photojournalist in Tilburg, Netherlands
    • Tilburgers
Re: Projection lenses
« Reply #449 on: February 28, 2021, 11:48:19 »
Angenieux f1.4/90mm projection lens does spring...
Lovely lens and examples. First one is most impressive.