Prompted by a couple of other posts on here, I just thought I would share my method of photographing my family's large collection of 35mm slides (and a few 126 slides too). The method has gone through several evolutions (the history of which I won't bore you with) and I think I've reached the point where I can't improve any further without significant expenditure. Key to the set up is this small battery-powered slide viewer: http://www.amazon.co.uk/MEDALight-Viewer-SV-4-viewing-slides/dp/B009HRJGQ6/ref=sr_1_8?ie=UTF8&qid=1460400874&sr=8-8&keywords=slide+viewer It had a plastic film on the front which goes over the slide to keep it in place, but I removed that so that there was a direct view of the slide. Then I made a wooden jig to hold the viewer at the optimum distance from the camera. It is adjustable for reach and tilt and the viewer is held on tightly with an elastic band. The jig is then bound to the column of the tripod with elastic bands and velcro. See photo. The camera is a Panasonic G2 and the lens is the Olympus 60mm macro. I also use a wireless shutter release to reduce shake and speed things up a bit. Once everything is in place a certain amount of micro adjustments are needed. I set the camera to 3:2 ratio to match the slides and then frame it so that the edges of the slide mount are just visible. Slides mounts do vary a little, so some types will show more mount than others, but this is cropped out later. Time spent getting everything straight and square is important, and once done it doesn't move. I then set the white balance with no slide in the viewer, and reset it a few times during the photographing as the colour of the viewer changes a little as the batteries run down. There comes a point of course where the batteries need replacing, but one pair will do several hundred slides. I use aperture priority and f8 as this is probably about the optimum for this lens. That's it. Use a dimly lit room, put a slide in the viewer, take a photo, replace slide, take another photo. Each cycle takes around 6 seconds, some dark slides need very long exposures however. I’m sure everyone will have their own opinion and preference on post-processing, but I use RawTherapee and in most cases all that is necessary is a crop and auto white balance correction. Some slides need more work than others of course, and it's up to you how much time is spent on each one, depending on its importance. The taking process is so quick that I’ve not been selective and am photographing all the slides I have. I found it is worth photographing apparently blank slides too as it's sometimes been possible to bring up a faint image. Consulting the histogram of these show where there may be something lurking. Finally, if you are considering digitising your slides (or indeed negatives), then do it now. Even some of my relatively recent 20 year old slides are deteriorating.