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Lens-O-Rama
For the classroom or crafter (magnifying brooches and earrings?) or the home loupe manufacturer. You get half a hundred nice plastic DCX lenses, 19.5mm dia, 66mm focal length. They're packed in bulk, so there could be some very minor surface scratches.
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68095 DCX LENS |
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Placebo Lens
Please don't pop these little glass DCX beauties in your mouth. Sure, they're shaped like zinc tablets or miniature communion wafers - thin, 14mm dia - but they'll do you no good inside, probably even cause you harm. Instead, utilize their 48.3mm focal lengths for all classroom projects, or combine these with other lenses to build binoculars, magnifiers, microscopes and telescopes.
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27756 DCX LENS, 14MM |
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Achromatic Lens
This achromatic doublet lens (them what won't distort color or shape any more than they absolutely have to) is in an oval metal mount with a small mounting hole opposite a set of prongs. Originally a projector lens of some sort, it measures 20mm dia (approx 3/4") with a 47mm (approx 1-7/8") focal length. Despite the fact that you could mount it in its current mounting using the mounting hole, we suspect you're just going to use it as a nice 5X loupe.
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68023 ACHROMATIC LENS |
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14mm x 28mm
They may be a little dirty, but that's a small price to pay for a glass achromatic lens at this small price. Small in size but a big value at 14mm dia. x 28mm focal length.
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68019 LENS, ACH, 14 DIA 28 FL |
Protective Lens
One of those clear plastic jobs that goes over an automotive light or some such. It provides a bit of focusing to strengthen the beam and some protection, but isn't really an optical element. This one is 2-7/8" sq. x 9/16" thick. Actually, the plastic is only about 1/8" thick, but there is a rim to the rear which gives it overall depth. Good protection for outdoor lights. Could be set in the outhouse door to admit distorted light. Or flip it over and serve nuts in it.
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21648 CLEAR PROT. LENS |
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Meniscus Miscellany
Treat yourself to an assortment of our finest negative meniscus lenses in sizes between 14mm and 52mm with focus lengths between -29.7mm and -169mm. Negative meniscus lenses spread light instead of concentrating it, so they're sort of de-magnifying glasses. (Perfect for reading if your vision is too good.) You get (4) lenses in each of (5) sizes for (20) total.
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40853 ASSORTED 14-52MM MENISCUS LENSES |
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Projection TV Lens
It's a beauty, this monster RGB (red, green, blue) lens made for a big projection TV, like the ones that ruled sports bars before the flat-screen invasion. The DELTA® HD - 8, REV B lens measures 9" long x 6-3/8" dia, with adjustable 140mm F.L., magnification of 9.5X to 52X, fully color-corrected coated lenses, f/1.1 at infinity. Has (4) 1/4" mounting holes. Made for 3M® by U.S. Precision Lens, Inc. Mighty good price, too.
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40949 U.S. PRECISION RGB PROJECTION TV |
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