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User Manual
13.0 ACCESSORIES
13.1 Accessories
Type 110 & Type 135 Close-up Lenses
Type 110 (L-110) and Type 135 (L-135) close-up lenses enable the Wahl
DHS520/520B to focus on targets at distances that are too close to measure
with the standard lens.
The Type 110 (L-110) lens has a fixed focus at 215mm/8.5in, with a
minimum target size of 0.4mm/0.016in. A typical application for this lens is
hot filament/wire observation.
The Type 135 (L-135) lens has a focus range of 450mm/17.7in to
620mm/24.4in, with a minimum target size of 1.8mm/0.07in. A typical
application for this lens is calibration on small aperture furnaces.
Fig. 28 Type 110 and Type 135 close-up lenses
Wahl DHS520
315028
Page 41
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