Tasco 1575 User Manual
Page 75
A. JAEGERS 58MM DIA X 85MM FL PCX ASPHERIC LENS
These are unused plano convex aspheric lenses from
the remains of A. Jaegers optics in Lynbrook, NY.
Edge thickness is 2mm, center thickness is 15mm.
Aspherics offer superior aberration correction for
light concentration that would normally require several
spherical elements. Unused beauties.
L3600 $5.00
NAVITAR 111MM FL, F/5.5 PROJECTION LENS
Here's a great vintage lens made by Navitar. Front
clear lens diameter is 28mm (barrel is 43mm), rear
clear lens diameter is 28mm (barrel is 41mm). Center
stop is about 10mm. Focal length is 111mm. The barrel
is 37mm long. Great purple anti-reflective optics!
L3604 $9.00
FRESNEL LENS 13" FOCAL LENGTH, 12-1/2" LONG X 9-7/8" WIDE
You have been asking for these for quite some time and
our last batch sold out rapidly. Quality optical acrylic
fresnel lens 1/16" thick, 318mm x 250mm with a
330mm focal length constructed of thousands of tiny
spiral microgrooves. These are commonly used in DIY
projectors in conjunction with an achromatic lens.
Fresnels were originally designed to be used in light-
house because of their light weight. Also could be used to build a solar fur-
nace. And makes a great magnifier for TV, computer screen, reading, etc..
Unused in mint condition! While supplies last!
L3606 $9.95 or 10 for $80.00
A. JAEGERS BI-CONVEX 75MM DIAMETER X 200MM FL
This is Jaegers catalog # 4042. Plate glass, edge thick-
ness is 3.5mm, center thickness is 8mm. Uncoated. May
have very minor edge chips or light scratches. Great
for experiments or as a magnifier.
L3608 $3.00 or 10 for $24.50
Lenses - Page 73
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