So here is my scan rig tuning workflow if anyone cares: Aligning camera and film holder with the  Vlads test target as generator of the test image. The picture is to grab you attention. I used to see it often on my TV when I was 7 years old and was waiting to watch my favorite animated movies which would open the broadcast at 4 o'clock Moscow time . Prepare your scanning rig - whether it's a copy stand or camera bellows with vintage film holder from Nikon, Canon, Minolta, etc. I will assume that camera and lens are able to slide forth and back in relation to a film holder. Ideally you should use micro-focusing rail. Having Arca-swiss clamp sliding on the rail is possible but you will discover that when you start tightening the clamp once focus is achieved, the image will jump by 1-2 mm - pretty significant and irritating shift given overall frame size.    Keep the film gate empty. Adjust lights, mask out stray light, optionally tether your camera to the computer and connect you

To successfully assess DSLR scanning capabilities I needed 35 mm film which would not be outresolved even by the high-end  digital camera. Of all the chart pieces the real drama happens right there - in parlance of USAF 1951 - at Group 0 (zero). Say, if Group 0 Element 5 to be resolved, the lens +film resolution should be at least 87 lp/mm (calculation are based on my USAF targets dimensions and the shooting distance/lens focal distance). Just think of it - you are in front of a chart 24x36 inches (60x90 cm) at normal viewing distance - say two feet - will you be able to see the strokes of size 0.3 - 0.5 mm ? If your vision is 20/20 you probably will, but barely. The same is true for the camera as we will see below. So what film we should use and how to get it? Even if film+lens give us say 90 lp/mm what your digital camera will be able to capture? Read on... Even half a year ago, I was not familiar at all with the films sold nowadays in American stores. In B&H and Adorama prominen

Here is another   DR;TL.  (from my post on FB ) I am thinking about publishing the series of posts describing minute technical details about how "Vlads test target" was and is actually produced. The project took roughly eight months and between hundred and two hundred hours of labor. The result adorns FB "Digitizing film with a digital camera" group title page.   Now I want to share some technical details as they might be just handy to anyone who still shoots film. I want to thank all members  of the group as they gave me the inspiration and tons of technical advice and know-how. On the   other side I am thinking about publishing these notes on some photo-website - so the audience will not be limited to this private group but whatever I learned will be available to anyone who can google. I have not contacted any particular web site yet and is actually open to suggestions which one has a wider reach. Certainly the other goal is to advertise the availability of those