This lot contains the cards that have already been in use for a long time to measure the focus and resolution of photographic lenses.
This concerns the set of four paper focus test cards by C.J. Trion (published by the magazine Focus) with user instructions and tips.
The paper has somewhat yellowed due to age.
Besides that, a set of ten 9 x 18 cm synthetic ‘lens testing charts’ (focus measuring cards) published by EPP (European Photo Press) with instruction booklet and three colour foils (red, green and blue).
The cards are put on a wall and photographed, after which the recordings can be judged in terms of how focal distribution and the resolution of photographic lenses perform in reality.
The photos are part of the description.
The lot weighs less than 350 grams and will be sent ad letterbox mail with insurance and registration.
- Multiple main devices
- EPP en Tirion
- Model/ type nr
- Scherpte meet kaarten + manual
- Object/device type
- Good (used & in working condition with visible signs of use)
- No. of main devices
- In working order