The following is an overview of the steps needed: This Instructable provides all the details for accomplishing this. Once the camera snaps the picture, the projector automatically advances to the next slide and the process repeats itself. The slides are back illuminated with a LED white light source. The concept was to modify a standard Kodak Carousel projector to enable a digital camera to focus through the front of the projector directly onto each slide after it dropped down from the carousel tray. The goal was to "automatically" digitize over 40 boxes of slides stored in carousel trays, without having to remove the slides from the trays if possible, while maintaining close to the original slide sharpness and dynamic range. Over the last 30+ years, the slides have only been seen a few times as it requires a dark room and some setup (projector, screen, etc.) I decided it was time to convert the family slides into digital images that could be easily viewed on a PC or TV and shared with my childeren and grandchildren. The slides were organized in carousel trays holding either 80 or 140 slides. For years we would watch our travel slides projected onto a screen using a Kodak Carousel projector. I was bitten by the same bug, and have fully "documented" my travels in the 70's and 80's with 35 mm slides. This has been done before (except the maybe not the low watt bulb) by a slide to digital service which if I recall correctly is in NY.My parents were avid travellers and photographers and took thousands of 35 mm slides documenting our many trips when I was growing up. If I find a lower watt bulb that works, and build a practical mount for camera and projector alignment, I'll post the results here. Making low resolution web copies of the files would take less than an hour for all 5000 slides using photo mechanic. Keep in mind the whole point of using the projector is for the fast load and consistent lighting while allowing for fast, high resolution image capture via DSLR. I am looking for a much lower wattage bulb to lower risk the of burning up or fading the slides. By saving all the RAW files, this can be done for any of the slides and provides a good archive. Those that are interesting enough for special treatment, I can pull up the RAW file and spend time on it. using photomechanic I can quickly batch downsample and categorize images to upload to my website for roughly 1 MB screen images. I'll shoot in a fixed white balance setting in RAW files. I can see each image as captured by "tethering" the camera to avoid huge errors in focus or exposure should they occur. More resolution than that would be pointless, and I don't know of any scanner system that can operate that fast at that resolution. press project button, next slide loads, press shutter button, image captured. So with a Kodak projector I can place the slides into the carousel, use my Canon 1DX camera and shoot directly into the projector with it's lens removed getting over 5000 x 3400 pixel images with less than 3 seconds per image. He even made sure to get journalistic style photos -not stiff poses. He was an excellent photographer with good composition, focus and lighting. I have over 5000 slides from my father, chronicling family vacations, holidays, fun and events. Another reason for using the old projector is as a replacement for scanning slides.
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