Should you’re above a definite age, you most likely be mindful the ambience of a pre-Powerpoint 35 mm slide display. The wobbly display being unrolled, the darkened room, the comfortable hum of the projector’s fan, the moderately grainy image at the display and that unmistakable click-whoosh-clack sound because the projector loaded the following slide. In this day and age you’ll be exhausting pressed to search out any person prepared to arrange a display and darken the room simply to observe a couple of pictures, so if you happen to nonetheless have any slides mendacity round you’ll most probably need to digitize them. Should you’ve additionally saved your projector then this doesn’t even need to be that tricky, as [Scott Lawrence] displays in his newest challenge.
[Scott] made a setup to immediately attach a DLSR, on this case a Nikon D70, to a Kodak 760 slide carousel. The attachment is made via a 3D-printed adapter that matches onto the Nikon’s macro lens on one aspect and slides snugly into the carousel’s lens slot at the different. The adapter additionally holds an IR transmitter which is aimed on the digital camera’s receiver, with a purpose to cause its far off shutter unlock serve as.
The carousel’s unique mild supply used to be changed with a compact LED studio mild, which permits for actual brightness regulate and naturally stays great and funky in comparison to the unique incandescent bulb. The sunshine, digital camera and carousel motor are all managed via a central consumer interface pushed through an Arduino Leonardo which will routinely advance the carousel and instruct the digital camera to take an image, thereby taking the exhausting figure out of digitizing large stacks of slides.
[Scott] plans to make the instrument and STL information to be had on GitHub quickly, so any person can move forward and switch their projector right into a digitizer. Should you’ve out of place your projector on the other hand, a easy 3D-printed slide adapter to your digital camera additionally works for small slide decks.