Page 1 of 3 123 LastLast
Results 1 to 10 of 23

Thread: How to bring 4x5 and 6x17 slides on to 6x4,5 film

  1. #1

    Join Date
    Mar 2014
    Location
    Hemmingen, Germany
    Posts
    165

    How to bring 4x5 and 6x17 slides on to 6x4,5 film

    Hey folks!

    Is there a viable solution to bring LF and 6x17 slides into a smaller format for projection?
    I know there are film Recorders but this business seems to be nearly dead and the services that are left are extremely pricey.
    So could you imagine a solution of copiying with a macro on a lighttable?

    Best regards,

    Sebastian (Germany)

  2. #2
    M.A. Wikstrom
    Join Date
    Jul 2016
    Location
    Albuquerque
    Posts
    69

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    I guess you could try copying them into a 6x4.5 camera using a light box and macro lens, or normal lens with an extension tube. Mask around the original to prevent flare.

  3. #3
    Daniel Stone's Avatar
    Join Date
    Nov 2009
    Location
    Los Angeles area
    Posts
    2,135

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    I would go with the "duplicate with film" option. Problem is, you will need a low contrast film, which are pretty much non-existent these days unless you're willing to purchase past-date film stock. Ektachrome 100(EPN), Ektachrome 64(EPR) or Fuji Astia 100F would all be suitable candidates. Having proper rear illumination for the film to be copied, however, will be the tricky part. You do not just have to worry about how "even" it is, but also the color temperature of the light source. Even 200 degrees Kelvin(or even less, depending how discerning your eye is) can see a change in color balance(which can also be good, if you want to warm up the entire shot, for instance, or cool it down).

    Are you intending to display(as in an analog slide projector) these 6x4.5 frames? If so, have you considered scanning the desired frames, then printing them via inkjet onto clear mylar, then mounting them in the slide frames? I've never done this, but thought about it just now. Not sure if it'd work, just a thought.

    But yes, a "light box" consisting of a piece of milk-white plexiglass, then a black "frame"(I'd use 4 or 8-ply matboard for this) to mask out the errant light. Make sure to have a good lenshood as well. Bracketing a test roll will be helpful.

    Personally, I'd rather use a strobe head as my source of illumination than a traditional lightbox.

    You can also over-expose and "pull" process the film being used to copy the originals. Experimentation for proper density/contrast to match the originals is recommended of course.

    -Dan

  4. #4

    Join Date
    Jun 2014
    Posts
    1,879

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    have you considered scanning the desired frames, then printing them via inkjet onto clear mylar, then mounting them in the slide frames?
    I'm afraid that will yield very poor image quality. Imagine inkjet dots enlarged 100 times. It won't be a pretty sight, although it may be a plan B especially if the projection size is tiny or viewing distances are huge.

  5. #5
    Moderator
    Join Date
    Apr 2009
    Location
    Northern Virginia
    Posts
    5,538

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    You can reduce contrast by flashing the film. The old Bowens Illumitran slide duplicator had a contrast control unit that flashed white light onto a piece of glass at 45 degrees, while the slide original was projected through it.

    Rick "who would scan it and project it digitally with a 4K projector" Denney

  6. #6
    Tin Can's Avatar
    Join Date
    Dec 2011
    Posts
    18,943

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    I run daily digital slide shows on my HD TV and on a much less than 4K digital projector. The 16 year old DLP still looks good in a darkened room. I run custom slide shows for visitors. No sound just images changing on a screen. The screens are on walls like frames and without seating areas. Folding chairs.

    Some are recent film scans. Most are my entire image library dating back 60 years.

    I use Chromecast to access my drives and sometimes I see an image I totally forgot.

    Quote Originally Posted by rdenney View Post
    You can reduce contrast by flashing the film. The old Bowens Illumitran slide duplicator had a contrast control unit that flashed white light onto a piece of glass at 45 degrees, while the slide original was projected through it.

    Rick "who would scan it and project it digitally with a 4K projector" Denney
    Tin Can

  7. #7

    Join Date
    Oct 2013
    Location
    Maryland
    Posts
    1,364

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    If you are projecting them anyway, why not just scan them into image files and project them from a computer with an LCD projector?

  8. #8
    bob carnie's Avatar
    Join Date
    Jan 2004
    Location
    Toronto, Ontario,
    Posts
    4,718

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    my thoughts as well
    Quote Originally Posted by djdister View Post
    If you are projecting them anyway, why not just scan them into image files and project them from a computer with an LCD projector?

  9. #9

    Join Date
    Jul 2016
    Posts
    4,565

    Re: How to bring 4x5 and 6x17 slides on to 6x4,5 film

    Quote Originally Posted by sdzsdz View Post
    Hey folks!

    Is there a viable solution to bring LF and 6x17 slides into a smaller format for projection?
    I know there are film Recorders but this business seems to be nearly dead and the services that are left are extremely pricey.
    So could you imagine a solution of copiying with a macro on a lighttable?

    Best regards,

    Sebastian (Germany)

    Let me suggest a different aproach:


    Go straight and just project the 4x5 slides !!!! Full ressolution : )

    Just use a 4x5 view camera for it, using a common good LF lens to conserve image quality, you'll need a condenser type strong light source (LED, less heat) to illuminate the slide that has to be placed in place of the ground glass.

    At the beginning photographers were using view cameras as enlargers.


    Another way it's an overhead transparency projector, less quality... but a good start.

    http://www.ebay.com/itm/DUKANE-622A-...3D182203475448


    Best Regards

    Pere (Catalonia, Spain)

  10. #10
    Moderator
    Join Date
    Apr 2009
    Location
    Northern Virginia
    Posts
    5,538

    How to bring 4x5 and 6x17 slides on to 6x4,5 film

    If you are tempted by the overhead projector, mount the slides in opaque masks that completely cover the glass plate of the projector. The big problem with those is that they spray stray light all over the room.

    Getting enough light through a view camera is really going to be a challenge. A condenser head from an enlarger is a starting point, but projection images are subject to the inverse square law, and the viewing space will never be as dark as a darkroom.

    Rick "sorta liking the overhead projector idea" Denney

Similar Threads

  1. Shooting 6x17 - using a roll film back vs split/cropped 5x7 sheet film
    By djdister in forum Cameras & Camera Accessories
    Replies: 28
    Last Post: 13-Dec-2014, 00:01
  2. Freestyle to bring back Ortho/Litho Film
    By Jim Fitzgerald in forum Announcements
    Replies: 5
    Last Post: 12-Jul-2012, 10:37
  3. How many holders and film do you bring when shooting away from home ?
    By chopsteeks in forum Darkroom: Film, Processing & Printing
    Replies: 40
    Last Post: 14-Jun-2012, 17:38
  4. Best film for negatives from slides
    By novaphoto in forum Darkroom: Film, Processing & Printing
    Replies: 3
    Last Post: 30-Dec-2008, 08:27

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
  •