For those waiting for type 120 targets there is the good news: the wait is over. 6x6 (56x56 mm)and 6x9 (56x84mm) targets are placed on the same strip of film : basically that means that every format from 6x4.5 to 6x12 is covered. Shown with Valoi type 120 holder.   The sharpness and contrast are guaranteed to be uniform  from the corner to corner at the expense of resolution which is lower (around 17 lp/mm), but for roll film scanning this is not a meaningful factor after all.  Positive version is  also available, though folks previously expressed doubt if positive version is actually needed. Leave the comments below if you are interested.

This is how 35 mm transparencies were mounted 60 years ago. Actual vintage Leitz cover glass plates, Leitz special silver binding tape, Leitz BINDOMAT were used to make the video. The only exception, instead of Leitz slide masks, the Kodak masks were used. Note that the reason why all materials - binding tape and masks -were made highly reflective was to prevent heating of the film while in projector with the very powerful incandescent bulb. Anyone who ever made slides has horror story to tell how their best slides were ruined by projector because either slide was projected for too long or projector was missing IR cutoff filter.  Anyway, given very high quality of all the materials Vlads Test Targets in 2x2 transparency format (known as LB35) are actually made exactly as shown and shipped to the customers. So called butterfly mask with the cutouts helps the scanning camera observe the corners of the targets and facilitate the film holder alignment.  https://fb.watch/9obGG33e7...

Vlads Test Targets are now available from these fine webstores in Europe. (I am not tax and custom's adviser so cannot tell you which store in which location to use. I only can say that I really want to stop shipping targets myself 😏 ). EU folks will want to buy from Finland-based VALOI Kamera Store . While there, save on the shipment and  pick up VALOI 360 Film holders suitable for both low to high through-output workflows and available in wide range of film formats.  Chaps in Great Britain would want to order from PIXL-LATR store   - again, buy pixl-latr film holder which is truly one size fits all and is very portable.