Re: Questions about Nikon SA-30 roll film adapter

In article <1130425927.998879.174390@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
haitao <haitao_yifei@xxxxxxxxx> writes
>Thans, Jim and Kennedy, I want to write down what I get from your posts
>and get your confirmation that if I am right.
>
>My problem: Long, uncut roll of film (40~50 frames); don't want to cut
>it; no blank space between frames; need all information on the film (so
>I may need overlapped scanning of some area).

The SA-30 is only specified for a maximum of 40 frames, which is also
the most I have in any roll. I don't know if it will take 50 frames or
not, but the specifications say it won't. It will probably only scan
the first 40 and then eject the film with an error message.
>
>1. It looks that by purely using the SA-21 manual film strip adapter
>(without modification), I have to cut my film roll into strips with at
>most 6 frames, otherwise, the scanner will not do my job (how about
>just leave some frames outside the adapter?). I don't know if the
>scanner will work for strips longer than 6 frames.

No, that won't work. The unmodified adapter will only accept the first
6 frames on the roll and never get to the rest of the frames.

> Can I first scan 6
>frames at one end, and scan other 6 frames at the other end, so the
>total will be 12 frames in one strip?

Yes, that would seem to be possible, scanning a 12 frame strip with two
insertions.

>In addition, SA-21 does not have
>the problem of scanning films without blank area.
>
I am sure this is more of an issue with software than the adapter. Using
NikonScan4 even the SA-21 may have problems without gaps between frames.
Vuescan would appear to be more suitable, with both frame offset and
position being user defined and independent of the frame borders.

It may also be possible to write your own software to control the
movement of the film using the Nikon SDK. Ed Hamrick has clearly
managed this in Vuescan, so it is feasible.

>2. With the modifications of the SA-21, I can use it as a roll film
>adapter (does it mean that the scanner will recognize it as a SA-30?).

Yes - it recognises the SA-21 as an SA-30 with the modification. In
fact, having examined both adapters, this link is the only difference
between them other than a small dust brush on the lower side of the
SA-30. I guess Nikon expect long rolls of film to pick up dust while
waiting to be scanned.

>To do this, I need a container as film receptacle and open the rear
>side clip.

Yes.

>But then I will get the problem of frame detection since
>there no blank space between frames for my case. Other scanning
>software, like Vuescan, may solve this detection problem, am I right?
>
Yes.
As an alternative you could even use an approach similar to something I
did to scan reels of 8mm movie film. I made an external transport
system with a stepper motor driven from the serial port of the PC. This
was geared down and pulled the film via its sprockets through the MA-20
manual adapter by the desired amount. That meant I could move the film
by any distance I chose, scanning between 1 and 6 frames of 8mm movie at
a time.
--
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's pissed.
Python Philosophers (replace 'nospam' with 'kennedym' when replying)
.

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