+++ scanner test +++

[1967250s]

I decided to test my on year old practicaly unused scanner today.
It's a ACER ScanPrisa 1240 UT : flatbed with incover light source for transparencies up to 5"X7".
Max optical resolution is 1200 ppi, interpolated up to 9200 ppi.

The test : check if interpolation really works?
-First scan at maximum optical 1200 ppi
-second scan at 4600 ppi interpolation

To keep files down (for this test), the film is in grayscale.
Film : medium format 6X6cm KodakTX
camera : Yashica "D", old waist level type with two lens (payed $50cdn about 15 years ago)

Attachment : The cameo in this pic is the actual film size, the red "parallelipiped" (red box) is the blow-up part in the next post. The left is 1200ppi, the right is 4600ppi interpolated. Both have been "ajusted" (brightness/contrast) and sharpen (unsharpen mask).

[1967250s]

Buttom line? On my scanner, it seem's to work and give's me that extra working latitude.
The image was fuzzier but with the right sharpening it was superior to the 1200ppi.

ps; interpolation (4600ppi) dos not work as well on strong 45degrees dark lines (sorry not shown here)