At 11:16 AM +1000 9-10-01, Rob Geraghty wrote:
>Does the bow in the film ever change? I know when I have showed slides
>in an autofocus slide projector, the heat of the projector often caused
>the bow in the film to reverse, requiring refocussing...
BF: I highly doubt the film curvature will change while in the scanner.
>>From what Ed has said in the past, the focus position seems to be in one
>direction only - I *think* along the length of the film.
BF: With NikonScan 3.1 on the Mac I can set a focus point anywhere on
the image and it truly seems to be a POINT not a LINE. To verify this
behavior set the focus point anywhere on the image and read the focus
value readout. Then set the focus point at various places along a
vertical line running through the original point; you'll see that the
focus value changes. The same holds occurs in the horizontal
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