A deluxe type of extension bellows unit, double track and rack-and pinion for speedy
movements and a precision focusing device.
Focabell S
Foldable compact type with single track which is light and easy to carry.
· Pushing the lever on its right side permits the bellows to slide forward. Pulling it back locks
the bellows firmly.
· Between the two tracks is a scale giving magnification ratios and exposure factors, black
figures on one side for the 50mm lens and red figures on its reverse for the short-barrel Grimm
lens. This scale can be detached by removing a screw and re-attached to indicate the side which
matches the lens being used.
· Magnification ratio is I~Z.6 times with 50mm lens and infinity to o.6 times with short-barrel I35mm lens. The figures on the scale show
magnification ratios at top and exposure at bottom.
· The magnification ratios are read off from the position indicated by the tip of the precision focusing device.
· Erect the track and lock it in position by moving the small button on the focusing knob side.
· The focusing knob is on the right side and the locking knob which is turned clockwise for locking the track is on the left side.
· The magnification scale on the left side is for o.g~z.5 times With the 50mmSomme lens, that on the right is for infinity to o.5 tulles with
the short-barrel r35mm lens.
· The magnification ratios can be read off from the position of the tip of the track guide, which slides through the side groove of the track.
D. Extension Tubes
The standard lens of MIRANDA Sensorex gives sharp focus up to 45mm (17") (roughly 21 X
I4cm fill up the entire viewfinder field). But to shoot at closer distances, the extension tubes
become necessary. Extension tubes are available in four lengths, one AU Adapter and three
intermediate rings. The AU Adapter is equipped with a screw and bayonet mount; the rings use
the inside screw mount.
The AU Adapter has the same length as Tube No. I.
The tubes are of lengths 8mm, 16mm and 3zmm, and can be used separately or in combination to
give close-ups of O.I5~I.Z3 time magnification.
· Magnification ratios and exposure factors are shown on the next page (for 50mmSomme lens at
infinity).
· These are handy to use in copying photographs or taking pictures of insect specimens.
To Next Page
Loading...
