Item Number: 3030344
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Magnifier, Hastings Triplet 10X for printers and photo engravers
Unique three-element design provides the ultimate in distortion free, color-correct viewing, facilitating reduction or elimination of "pin cushion" distortion and chromatic and spherical aberrations. Two concave meniscus elements are cemented to a double convex lens, then mounted with threaded retaining rings in a machined black anodized metal cell which swing into a protective case. The case doubles as a handle for viewing.
We caution buyers that laws of physics dictate that both the diameter and working distance of a magnifier must decline as power increases. Accordingly, the 20X system, while an excellent high-power magnifier, is relatively small and has a short working distance. The next step from the 20X Hastings is a full microscope.
Lens Diameter: 15mm / 19/32"
Field of View: 20mm / 13/16"
Focal Length: 25mm / 1"
Working Distance: 22mm / 7/8"
Case Dimensions: 3/4" H x 1 1/2" L