« on: July 27, 2014, 04:59:02 PM »
I have a question: in the link posted http://petapixel.com/2012/12/24/how-to-scan-your-film-using-a-digital-camera-and-macro-lens/
the author says 4-6 shots are required for a 35mm image, but he is using a Zeiss Makro Planar, and a 1:3 magnification.
What I don't understand is, unless the magnification is greater than 1:1, why would I need to take multiple images and stitch. Can someone clarify?
The author is stitching multiple photos in order to extract the most detail from each negative/slide. The explanation:
"Using an higher reproduction ratio is more time consuming (you’ll need more shots to cover the same area), but as a result you will be able to extract the most detail from the film. Here are some examples showing my Canon setup at various reproduction ratios, compared to the results of a well-respected flatbed scanner, the Epson v700..."
The exact numbers depend on the size of the negative/slide compared to the size of the digital sensor. Using 1:1 for a 35mm negative would require stitching multiple shots on an APS-C sensor camera, or just a single shot on a full-frame digital camera.
Ah, 35mm film on an aps-c camera- that makes sense!
Thanks for the clarification