The ferrotype and how to make it - The Grian Press
The ferrotype and how to make it - The Grian Press
The ferrotype and how to make it - The Grian Press
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160 THE P^ERROTYPE.<br />
Figure 2 s<strong>how</strong>s the prism screwed <strong>to</strong> the tube<br />
<strong>and</strong> the cover resting on the box. This view ex-<br />
plains the method of using the prism. <strong>The</strong> from<br />
of the prism being turned <strong>to</strong>ward the s<strong>it</strong>ter, pre-<br />
sents the side of the box, <strong>and</strong> brings the ground<br />
glass <strong>and</strong> plate-holder at right angles w<strong>it</strong>h the<br />
s<strong>it</strong>ter. 'Jlie pos<strong>it</strong>ion is strange at first, but one<br />
easily becomes accus<strong>to</strong>med <strong>to</strong> <strong>it</strong>.<br />
Another method of -mounting the prism for<br />
use w<strong>it</strong>h the wing multiplier, is <strong>to</strong> set the tube<br />
well back in the box, <strong>and</strong> have the prism perma-<br />
nently f<strong>it</strong>ted <strong>to</strong> an extra front, which may be slid<br />
in<strong>to</strong> the front grooves of the box. By this<br />
method the lens is entirely hid from view, <strong>and</strong><br />
a novel impression is conveyed by the appearance<br />
of the apparatus. This last method is only pos-<br />
sible w<strong>it</strong>h the wiu^ a^imera ; the box-like front<br />
of which affords a»^^Ue space for a tube as large<br />
ag the box is intended for.
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