DigitDia 4000, Silverfast Ai, iSRD, colors

[Kul]

In a former thread I mentioned iSRD affecting colors with a reflecta DigitDia 4000. While the result without iSRD is OK (if you don't count the dust dots), by invoking iSRD the colors change to the worse (a greyish-blueish-greenish haze and horizontal greenish stripes in dark areas).

Please all DD4000 users:

Has anybody a similar problem or am I the only one?

[digi_m]

Hi Kul,

after pondering about the various versions, test results by users of this and the filmscanner forum, I finally wanted to get started scanning my slides instead of conducting 1000s of test scans only.
I therefore upgraded my Ai version to Ai Studio and am quite satisfied by the results:
no system crashes,
no color hazes, stripes,
slide orientation works perfectly well (not a single miss)
iSRD set to 199 produces very good results - no artefacts
noise in dark areas still very prominent so I scan those slides with dark areas 4 times - significantly reduces noise, but in about 30 - 40% of all cases I get misaligned scans so I have to scan these again
automatic numbering of slides sometimes seems to be messed up - need to do more tests here

conclusion - above version & firmware = best results obtained so far

next steps: will try out tip indicated by another user in the filmscanner forum (i.e. use different types of slides (snow, skin tones, etc.)

Take care
digi_m

[Kul]

Newest tests seem to indicate that having other devices on other USB ports (like a not active! external hard disc) affect the performance.

[Kul]

Yes the results change, but the problems are still evident