Vuescan 8.5.07 miscounts negatives and muffs offsets with Nikon LS-50

[paulbeard]

I have been trying to scan some B&W negative strips and for some
reason Vuescan is unable to start the scan at the right place, which
screws up the offset for the whole strip, and it somehow counts 6
images when there are only 5. These are not thin or marginal negs. Ed
Hamrick and I have been around this one but we're not able to
communicate very well on this one.


Here's what I sent for my problem report, minus a zipped logfile and
sample image.

• The operating system you're using
Darwin gee5.local 9.6.0 Darwin Kernel Version 9.6.0: Mon Nov 24
17:39:01 PST 2008; root:xnu-1228.9.59~1/RELEASE_PPC Power Macintosh

• The version of VueScan you're using (must be the latest)
8.5.07

• The scanner you're using
Nikon LS-50

• A list of other USB and SCSI peripherals
USB:

USB High-Speed Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBEHCI
PCI Device ID: 0x00e0
PCI Revision ID: 0x0004
PCI Vendor ID: 0x1033
Bus Number: 0x4b

USB2.0 Hub:

Product ID: 0x0606
Vendor ID: 0x05e3 (Genesys Logic, Inc.)
Version: 7.02
Speed: Up to 480 Mb/sec
Location ID: 0x4b300000
Current Available (mA): 500
Current Required (mA): 100

LS-50 ED:

Product ID: 0x4001
Vendor ID: 0x04b0 (Nikon Corporation)
Version: 1.02
Speed: Up to 480 Mb/sec
Manufacturer: Nikon
Location ID: 0x4b340000
Current Available (mA): 500
Current Required (mA): 2

USB Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBOHCI
PCI Device ID: 0x0035
PCI Revision ID: 0x0043
PCI Vendor ID: 0x1033
Bus Number: 0x2b

DeskJet 940C:

Product ID: 0x1604
Vendor ID: 0x03f0 (Hewlett Packard)
Version: 1.00
Serial Number: MX18R6D1YQBH
Speed: Up to 12 Mb/sec
Manufacturer: Hewlett-Packard
Location ID: 0x2b100000
Current Available (mA): 500
Current Required (mA): 2

USB Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBOHCI
PCI Device ID: 0x0035
PCI Revision ID: 0x0043
PCI Vendor ID: 0x1033
Bus Number: 0x0b

Bluetooth USB Host Controller:

Product ID: 0x8207
Vendor ID: 0x05ac (Apple Inc.)
Version: 19.65
Speed: Up to 12 Mb/sec
Manufacturer: Apple Inc.
Location ID: 0x0b300000
Current Available (mA): 500
Current Required (mA): 0

Hub in Apple Pro Keyboard:

Product ID: 0x1003
Vendor ID: 0x05ac (Apple Inc.)
Version: 4.10
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Location ID: 0x0b100000
Current Available (mA): 500
Current Required (mA): 50

Apple Optical USB Mouse:

Product ID: 0x0304
Vendor ID: 0x05ac (Apple Inc.)
Version: 1.08
Speed: Up to 1.5 Mb/sec
Manufacturer: Mitsumi Electric
Location ID: 0x0b110000
Current Available (mA): 100
Current Required (mA): 100

Apple Pro Keyboard:

Product ID: 0x020b
Vendor ID: 0x05ac (Apple Inc.)
Version: 4.10
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Location ID: 0x0b130000
Current Available (mA): 250
Current Required (mA): 50

• A brief description of the problem
I get no previews on scans and the scans are incorrectly offset. I
can't address the offset w/o a preview.

• Things you've already tried to solve the problem
Trashed all preferences. Removed power from all components. tested w/
Nikon software (it works fine).

• Make sure you attach vuescan.log, preferably zipped

• Make sure you attach the exact procedure used to produce
vuescan.log, and make sure this procedure is comprehensive, detailed,
and is the simplest procedure needed to duplicate the problem

Power on scanner. launch VueScan, reset all options to defaults,
insert film, request preview, get
nothing after the usual sounds and motions from the scanner, request
blind scan, get the attached result (that is the first frame on the
strip).