Nikon 35MM Film Scanner LS-10E - Manual (Page 72)

Fig. 4.15a
lj
:
' t
1.5 mm
3 mm
The mount type
Plastic, cardboard and glass mounts are commonly used
to frame film. Typically, the plastic and cardboard
mounts center the film in an open window. Thus, the
light passes through the air on both sides of the film and
through the film. When the film is mounted in glass,
there is a thin piece of glass sandwiching the film as
shown in Figure 4.15.
Fig. 4.15a Cardboard or piastic slide mount
[a] Mounted 35 mm film (air-film-air)
[b] Film
Fig. 4.15b Glass Slide Mount
[c] Sandwiched 35 mm film (air-glass-film-glass-air)
[d] Fiim
[e] Qiass
In the case of a glass mount, light must pass through
the air, film and both sides of the glass. This will require
manuai focus control.
The film location in a mount
In rare cases, the film will not be mounted in the center
of the mount. Due to the self adjusting centering
mechanism mentioned above, focus control will be
necessary to accommodate these mount variations.
Emulsion side of the film
The two surfaces of the film are not the same. One side
is called the emulsion side. The emulsion side of the
film is shown in Figure 4.2. in order to achieve
maximum focus, the emulsion side needs to be face
down when put into the scanner.
[d] . [e]
Fig. 4.15 Slide mounts
Montures de diapositives
Diarähmchen
72