Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Cheap lens for 16x20in

  1. #1

    Cheap lens for 16x20in

    Hi,

    I am looking for a cheap or/and easy to find lens for 16x20in? It would be for photography on paper. Can anybody help?

  2. #2

    Join Date
    Mar 2006
    Location
    Sullivan, IL
    Posts
    763

    Re: Cheap lens for 16x20in

    Kodak Anastigmat 21 1/4" is one of the lesser expensive lenses, I've had good experiences with a 19" RD Artar, a 360 Componon and a 210 6.8 Angulon as well (for contact printing purposes, at least)

  3. #3

    Join Date
    May 2010
    Location
    BANNED in the USA!
    Posts
    455

    Re: Cheap lens for 16x20in

    use one of your existing shutters from another lens (copal 3 or BIGGEST shutter you got) and +1 diopter close up lens/meniscus...give you 1000 mm lens which should cover pretty good...just no "corrections"..but maybe none needed....

    stop it down if you still get some shutter vignetting0--and to sharpen the image nicer...it works....hey--at least something to play with and get a feel for it, you know?

  4. #4

    Join Date
    Dec 2000
    Location
    Tonopah, Nevada, USA
    Posts
    5,773

    Re: Cheap lens for 16x20in

    Protar VII f12.5 23 1/8" focal length will cover 18X22 at smaller apertures with full correction and sharpness. These are usually sold combined with another Series VII lens to give a faster (f6.3 f7, f7.7) shorter focus lens. So if you buy a Protar VIIa that includes a 23 1/8" f12.5 element or a 27" element, you'd be good to go.

    http://www.cameraeccentric.com/html/...schlomb_8.html
    He is no fool who gives what he cannot keep..to gain that which he cannot lose. Jim Elliot, 1949

  5. #5

    Join Date
    Dec 2000
    Location
    Tonopah, Nevada, USA
    Posts
    5,773

    Re: Cheap lens for 16x20in

    Even cheaper. 26" or 28" element from a Turner Reich 8X10 triple convertible. Not as good as the Protar, but cheap cheap cheap.
    He is no fool who gives what he cannot keep..to gain that which he cannot lose. Jim Elliot, 1949

  6. #6

    Join Date
    Feb 2009
    Location
    Bloomington, IN, USA
    Posts
    441

    Re: Cheap lens for 16x20in

    I've used a Zeiss APO-Tessar 450mm f/9 on my 16x20 with good results.

  7. #7

    Re: Cheap lens for 16x20in

    Quote Originally Posted by johnielvis View Post
    use one of your existing shutters from another lens (copal 3 or BIGGEST shutter you got) and +1 diopter close up lens/meniscus...give you 1000 mm lens which should cover pretty good...just no "corrections"..but maybe none needed....

    stop it down if you still get some shutter vignetting0--and to sharpen the image nicer...it works....hey--at least something to play with and get a feel for it, you know?

    Interesting, but will it work? I could order to make an achromatic doublet, but what parameter should it have?

  8. #8

    Join Date
    May 2010
    Location
    BANNED in the USA!
    Posts
    455

    Re: Cheap lens for 16x20in

    ha HAAAAA...do I know the audience here or what?

    just start with a regular diopter---walgreens cheaters if thy got them big enough lenses...tape to the back of a shutter and play...

    doublets in long focal lengths start to get EXPENSIVE and small...better off getting a proper lens in that case....

    anything you need will need LONG focal lengths and will, of course, necessarialy be slow

    like i said...biggest shutter you got--or no shutter---just longest lens you can find, which is probably a diopter....if you stop it down enough it can surprise you....if you want to start getting sharper, I suggest a proper lens--no sense in re-inventing the wheel--you'll waste time and money and end up buying a proper lens anyways--besides--if it dont work out, you can always sell it--you'll have a hard time selling a homemade piece of crap...only one person I know of can do that.....

  9. #9

    Join Date
    Feb 2006
    Posts
    3,116

    Re: Cheap lens for 16x20in

    Quote Originally Posted by Łukasz Owsianka View Post
    Interesting, but will it work? I could order to make an achromatic doublet, but what parameter should it have?
    You could take two achromats, say telescope achromats, and make your own Rapid Rectilinear. RRs perform well, you'd be able to make stellar contact prints.

    Surplus Shed and Edmund Optical are two sources.
    One man's Mede is another man's Persian.

  10. #10
    funkadelic
    Join Date
    Sep 2008
    Location
    Nashville, TN
    Posts
    1,297

    Re: Cheap lens for 16x20in

    Quote Originally Posted by E. von Hoegh View Post
    You could take two achromats, say telescope achromats, and make your own Rapid Rectilinear. RRs perform well, you'd be able to make stellar contact prints.

    Surplus Shed and Edmund Optical are two sources.
    Be careful what you buy. I noticed some of them have different and limited ranges of the spectrum.

Similar Threads

  1. Lens design & glass types
    By IanG in forum Lenses & Lens Accessories
    Replies: 21
    Last Post: 31-Mar-2009, 17:20
  2. Cheap lens with huge coverage--does it exist?
    By BarryS in forum Lenses & Lens Accessories
    Replies: 19
    Last Post: 19-Apr-2008, 12:38
  3. Lens viewing angles
    By swmcl in forum Lenses & Lens Accessories
    Replies: 23
    Last Post: 6-Nov-2006, 14:01

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •