Page 1 of 5 123 ... LastLast
Results 1 to 10 of 47

Thread: scanning with dslr?

  1. #1

    Join Date
    May 2007
    Location
    Frankfurt, Germany
    Posts
    130

    scanning with dslr?

    hi all,
    could i scan my 5x7 negativ with a digital camera and a macro lens (canon 2.8/60mm macro)? i think yes.
    but is it possible to stich 20 digital shots to one frame?

    the idea is to put a flash opposite the fixed camera. in between a big piece of plexiglass with the mounted negativ. the plexiglass is beared on a checked surface.
    once the camera is aligned to the negativ i will have to rows each with 10 shots, after every shot the plexiglass is moved on square on the checked surface.
    all this is theory, like the idea of getting a 200mp scan of my 5x7 negativ. would this procedure anable me to get a a 24x32 inch print in a very good quality?
    theory is sweet but some real world experience would be very appreciated?
    boris

  2. #2

    Join Date
    Jan 2009
    Location
    Holland + Brazil
    Posts
    558

    Re: scanning with dslr?

    1) try a lightbox at 5400 K
    2) start with 4 shots, stitch them, print at A4 and see how it comes out
    3) if that works go larger

    You will need to put your camera on a copystand and overlap a bit, so the software can figure out where to put things where.......

    You don't need a 200Mb file to print a 24x32"

    Peter

  3. #3

    Join Date
    Jul 2007
    Location
    Austin TX
    Posts
    2,051

    Re: scanning with dslr?

    Technique such as this has been suggested by a few others and I have done a two exposure version of chromes, but not tried to stitch. I notice two things, 1. There is a considerable increase in contrast in the digital copy, and 2. using a closeup supplementary lens in a macro mode on the digital camera produces significant pincushion distortion in the digital image. The pincushion may be difficult to edge stitch. Otherwise I think the notion has merit.

    I think using a high quality DSLR with a good macro lens capable of resolving the detail in the film original is the way to proceed. A potentially tedious approach except for an occasional image capture.

    Nate Potter, Austin TX.

  4. #4

    Join Date
    May 2007
    Location
    Frankfurt, Germany
    Posts
    130

    Re: scanning with dslr?

    peter,
    i have no digital camera! it was just an idea.
    i assumed 20 shots just as an estimate. but the question is general.
    can i scan with a sdlr and obtain a drum scanner quality. it sounds to good to be true. did this somebody before ??
    boris

  5. #5

    Join Date
    Dec 2006
    Location
    Chicago, IL
    Posts
    1,424

    Re: scanning with dslr?

    This comes up every once in a while... The basic concept is okay, but you'd have to ensure that the illumination on the light table is perfectly even.

    Then you would need to use a lens and aperture that lets you easily correct the lens distortion and vignetting in post.

  6. #6
    Whatever David A. Goldfarb's Avatar
    Join Date
    Mar 2000
    Location
    Honolulu, Hawai'i
    Posts
    4,657

    Re: scanning with dslr?

    With a good macro lens or close focusing lens with low distortion (avoid zooms) at the close distances and careful alignment you can do it. For 20 tiles using Photomerge in Photoshop, you need some overlap, and you might want to do it in sections, like four strips, and then you merge the strips.

  7. #7

    Join Date
    May 2007
    Location
    Frankfurt, Germany
    Posts
    130

    Re: scanning with dslr?

    wow, sound's great.
    but why do people send their negatives away and pay good money for drum scanning??
    a mediocre dslr like the canon 450d and a very good macro lens would cost about1200$ not that much if i can dual use it..
    boris

  8. #8

    Join Date
    Oct 2005
    Location
    Santa Cruz, CA
    Posts
    2,093

    Re: scanning with dslr?

    Quote Originally Posted by boris View Post
    wow, sound's great.
    but why do people send their negatives away and pay good money for drum scanning??
    a mediocre dslr like the canon 450d and a very good macro lens would cost about1200$ not that much if i can dual use it..
    boris
    Everyone said it was ok, it can be done, etc., but they didn't say it was better than a drum scan by a professional. People go to pros when they want something that is better than what they know how to do themselves. Some people focus on shooting, scanning, and printing, some take their time on one aspect. Everyone does it differently. No one way is right for everyone.

    Lenny
    EigerStudios
    Museum Quality Drum Scanning and Printing

  9. #9
    Resident Heretic Bruce Watson's Avatar
    Join Date
    Sep 2003
    Location
    USA, North Carolina
    Posts
    3,319

    Re: scanning with dslr?

    Quote Originally Posted by boris View Post
    can i scan with a sdlr and obtain a drum scanner quality.
    Can you do it? Yes. Can you obtain drum scanner quality? Not even close.

    No need to take my word for it however. It's easy enough to prove it to yourself. Try it and see, and please report back with your results.

    Bruce Watson

  10. #10

    Join Date
    May 2007
    Location
    Frankfurt, Germany
    Posts
    130

    Re: scanning with dslr?

    exactly thatswhy i am asking. i had an idea but no real world experince. i also can't prove nothing because of the lack of equipment.
    what i have is an itching idea...

Similar Threads

  1. Scanning B+W Film
    By GSX4 in forum Digital Hardware
    Replies: 6
    Last Post: 16-Jul-2008, 13:59
  2. Using BTZS with a scanning workflow, how to?
    By Ralf-Finn Hestoft in forum Darkroom: Film, Processing & Printing
    Replies: 7
    Last Post: 28-Apr-2006, 09:18
  3. Scanning Workflow
    By neil poulsen in forum Digital Processing
    Replies: 4
    Last Post: 8-Feb-2006, 11:05
  4. Aliasing and scanning resolutions
    By Ed Richards in forum Digital Hardware
    Replies: 31
    Last Post: 20-Oct-2005, 22:35
  5. Betterlight Scanning Back for Film Scanning?
    By William Leigh in forum Digital Hardware
    Replies: 4
    Last Post: 18-Dec-2004, 13:50

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
  •