Notes for the safe
using of the modified SA-21 Adaptor
Nikon IA-20 (S)
Notes for the safe using of your modified
Congratulations for the new functions of your Adaptor.
Even if Nikon charges a very high price on my opinion there are still a
few advantages on the SA-30 Adaptor that your modified SA-21Adaptor is
Not only that it has a very high-quality “film take-up reel” that takes
the film at the end of the scanner.
I mean you can easily work without the “film take-up reel” because you
will have to support the film anyway at the front side of the scanner.
Because of this fact is an uncontrolled processing of a whole film roll
not possible without the support of the user.
You have to put the scanner on a raised position so that the film can
slip of on each side of the scanner as you can see o my demonstration
photos. Do not forget to open the little door on the back of the
scanner and attach it with tape so it will not scratch the film.
If you practise this there will be only a little help needed to support
the film at the start or the end of the scanning.
Especial for older films which roll sometimes it is better to lay the
scanner on the side. If you take a self made tray with two 38 mm
upper parts in front and behind the scanner, the film can roll by
itself on this upper parts. In this case the film slips on his side
edge. If you practise so there will be only a minimum help needed.
One very important and essential difference between the modified SA-21
Adaptor and the SA-30 Adaptor is that the original SA-30 Adaptor has a
much stronger motor that turns another gearing much slower. What
I want to say is that the motor is not the problem it is the gearing
that is in danger, if you are using the Adaptor not right.
During my testing, the motor of the modified SA-21 Adaptor has managed
easily to transport whole film rolls with 40 frames back and forwards
and I did not notice any damage or heating up of the motor in the
The very tiny cog-wheels that have to turn very fast wear out easier
than it is the case in the SA-30.
This is the reason, why I want you to keep modified SA-21 Adaptor as
dust free as possible to reduce the wearing out on a minimum. I
advertised this modified Adaptor under the view of using it
A long way moving of the film is the hardest part for the cog-wheels.
There are different varieties to scan a film, so think about a
possibility to scan the film without long and unnecessary ways.
Nikon has built the SA-21 Adaptor anyway so that it can handle
filmstrips with 6 frames continuously for a long period that means more
than x-thousand frames. Actually a roll film is not processed in a
different way. Only long and especially long and often moving of the
roll film make a difference in using and should be avoided.
I wish you a lot and long lasting joy with your SA-21(m) Adaptor.
Also these notes you can load as pdf file from my Download
Demonstration Photo for the Film transport
For questions please contact me by e-mail
But please note that my english isn't good enough for long messages
a lot of confusing technical words ;-(
(unclickable for obvious reasons)
special thanks to: Nina Faust for her help at translation!