This publicized exploration of facts was given with the aid of the Czech Nikon representation to the Japan Nikon Corporation. Adequate solution for better cooling of the scanner interior would be also helpful. I think that this problem can be partially solved by firmware modification and will require replacement of some electronic components in the scanner. Effective cooling needs very intense air flow and relative cold air – maximally 23 degree of Celsius scale. HEPA filter protect scanner from dust scattered in the surrounding air. “Overheating grade” (level of decreasing of sharpness) is also dependent on Digital ICE utilization = on the amount of “slide pollution”.
#Nikon scan 9000 driver#
I think that failure caused by overheating is not problem of the LED driver power semiconductors, but it is caused by others elements on this board, subsequently heated by these power semiconductors. sharpness is now perfect at the whole scan area. Gives results approaching a „90%" of final quality - the fan is too low-lying and is unable to reach the margins of the board, where are heat-sensitive components. Opened scanner (the scanner case was dismounted) provides better results than closed, but still unusable. I would called it the “Software Cooling”. Overall scanning time has been increased to 60 minutes! This experiment allowed me to achieve visibly better sharpness (approx 50% better, but not fair!) of the scan. Every 4th minute of the scanning time I interrupted scanning temporarily by pressing and holding down the left mouse button for the following 4 minutes. I have had prepared 4x-supefine scan (current scanning time is about 30 minutes). This feature allowed me to make the following test: I discovered that NIKON SCAN program (version 3 and 4) has one unusual feature: holding the left mouse key interrupts scanning as long as the key is pressed. Previously I have had Nikon LS 8000 scanner and during 3 years I never registered this problem. This problem was probably the cause of the wide-spread superstition that: “Digital ICE causes decreasing of the scan sharpness”. These unsatisfactory results cause each unmodified scanner to be practically unusable for any serious work with function of the “hardware” dust and scratches removal.
#Nikon scan 9000 serial numbers#
I discovered this problem on three machines (two scanners I tested myself), serial numbers 200405 – both were absolutely new.
* This “Faster mode” in the case of scanning high density or contrast slides is illogical – it is an automatic choice of the scanner firmware that cannot be changed by the user! Only small amount of normal density slides, scanned by the faster* mode (6圆 cm on 4000dpi/4x superfine takes about 14 minutes) is a little bit better (but not good). Most of low contrast slides without deep shadows and bright highlights are scanned by the “slower mode” (6圆 cm on 4000dpi/4x superfine takes about 26 minutes) - this mode is fully affected by the problem of decreasing sharpness during scanning. In the situation that a next scan is started within a few seconds after completion of the previous scan, the following scan unsharp already from the beginning.
#Nikon scan 9000 manual#
Manual focus changes before scanning does not compensate this fault:
During the course of scanning time longer then 30 minutes (8x superfine or 16x superfine) the reached unsharpness remains without change. The degradation is beginning to appear during second minute of scanning and gradually increases up to approx. I have made number of scans with manually shifted focal plane +- 15 and +- 30 steps, however the effect was only respectively shifted. This problem is not affected by change of the focal plane. Ideal plane is within 3 – 4 focusing steps (focal sharpness tolerance is aroundġ0 steps up-and-down). Focal plane of the holder (tested without appropriate plastic mask) is excellent – variation from the Scanner Nikon LS 9000 is equipped with the glass holder FH-869g. This problem is bounded to the switched-on DIGITAL ICE function and includes both modes - normal and fine.Ĥx_superfine_no_ICE.
Particular swatches from the left to right matches position on the scanned slide:Ġ, 14, 28, 42 and 55 millimeters in the direction of the film moving. Gradual decreasing of the sharpness is caused by overheating of some of the elements inside of the film scanner NIKON LS 9000.įollow the grain sharpness, please on following examples.Īll the scans of the film grain are scanned in 4000 dpi and publicized in the 100% size. After purchasing new scanner Nikon Super Coolscan 9000 ED and performing several multipass scans with switched-on ICE cubed function I was shocked by the poor sharpness of the scanned film grain.ĭuring the course of many tests I have discovered the problem of gradual decreasing sharpness during scanning.
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