"UNIVERSAL" Medium Format 120mm Negative Scanner for use with light table

cults3d

UPDATE 8/29/2019 - added untested 35mm top plate UPDATE 3/29/2019 - added missing base plate files One of my resolutions for this year is to finally digitize all my old medium format film negatives. Commercially available film scanners that support 120mm film are either expensive or low-resolution. I designed this film scanner as a way to use a regular digital camera to capture the negatives, so they can be inverted in Photoshop. This is a series of plates and a camera hood for scanning 120mm medium format negatives using a digital camera and a light table. The bottom plate requires a sheet of 0.093-inch thick acrylic. I got mine from Home Depot for less than $5. This should work for any camera, with only the lens hood needing adjusted for your model. The included lens hood is for a Canon SX40HS point-and-shoot digital camera and sits just inside the lens against the plastic that surrounds the lens element. Using the SX40 in manual shooting mode, I set focus to about 1.5 inches, ISO to 100, aperture at 2.8, and adjust exposure by changing shutter speed. I also use the self-timer at 2 seconds to avoid shaking the camera when capturing the image. The attached photos were scanned in this manner. The original scans are much better quality than seen here, with easily distinguishable film grain. Also included is a parametric model of the lens hood that can be customized in SCAD for using a different camera. This is now a universal film scanner for medium format film! You can download the latest build of SCAD and enable the customizer or edit the first few variables yourself - it's easy! The lens hood has been updated to sit outside the lens, with 15-20mm clearance between the rim of the lens and the small ring surrounding the lens housing. This will stabilize the camera and help block light.