Page 70 - Lenses

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EXPERIMENTERS MULTI-ELEMENT LENS ASSEMBLY

 

 

We don't have a clue what this was originally designed

 

 

 

 

for, but you can use it as is as an objective lens, or take

 

 

it apart to get six different lens elements, positive and

 

 

negative between 30 and 40mm diameter. As is, the

 

 

focal length is about 9 inches and gives a nice clear,

 

 

sharp color corrected image with an eyepiece. One of

 

 

the lens elements has what appears to be a strong

 

 

dichroic coating reflecting red on the coated side. There is a lever that

when turned moves a group of lenses up and down the barrel, but it doesn't

appear to effect the focal length. Barrel is 55mm diameter by 60mm long.

Clearly a quality piece. If you can figure out what it was made for, you

might be able to re-sell them at a profit. Unused.

L3338

$7.50

 

 

FUJI MIRRORED COPIER LENS 187MM FL, EYE/FACE INSPECTION?

 

 

 

Unused with front and rear covers. Front element has

 

 

 

 

a 55mm clear diameter. Mirrored lens easily unscrews

 

 

from the back. It's a 40mm diameter negative lens

 

 

with the rear center 20mm aluminized. The focal

 

 

length is perfect for viewing your eye, nose, teeth, etc.

 

 

Assembly is 77mm diameter by 45mm long with a

 

 

flange 90mm diameter.

L3342

$5.50

 

 

MTD 25MM FUJINON COPY LENS, 170MM FL

 

 

 

Quality coated multi-element optics made by Fujinon,

 

 

 

 

Model CP. Clear front and rear lens elements are

 

 

25mm diameter. Plastic housing is 100mm long by

 

 

24mm wide. Has two mounting holes. This would be

 

 

great for a small compact finderscope as the images

 

 

with an eyepiece are sharp and color corrected. Also

 

 

makes a great 2X wide field magnifier with a sharp,

 

 

flat color corrected image edge to edge and nice working distance of about

120mm with a 120mm diameter view. Focal length is 170mm. Unused.

L3344

$4.50 or 10 for $35.00

MTD,CTD LENS ASSY, 20MM FL, 42X

Multi-element, coated lens assembly made in Japan. Not sure what it was made for. Barrel is 35mm long by 21mm diameter. Focal length is 20mm. Marked "20MM 42X JAPAN". Does not work well as an eyepiece. Field of view is very narrow for that purpose. Does well as a sharp color corrected magnifier but not a wide field.

L3349 $3.25

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Image 72
Tasco 1575 Experimenters MULTI-ELEMENT Lens Assembly, MTD 25MM Fujinon Copy LENS, 170MM FL, MTD,CTD Lens ASSY, 20MM FL
Page 71 Page 73

1575 specifications

The Tasco 1575 is a high-quality spotting scope designed for outdoor enthusiasts, birdwatchers, and hunters who seek superior optics and performance. This versatile instrument is engineered with advanced technologies and precision manufacturing that make it a standout choice in the field of optical equipment.

One of the main features of the Tasco 1575 is its powerful 15-75x magnification capability. This wide range allows users to zoom in on distant subjects with remarkable clarity, making it ideal for observing wildlife or surveying landscapes. The scope is equipped with a superior quality objective lens, which not only enhances light transmission but also offers exceptional brightness and color fidelity. This ensures that users can enjoy crisp, detailed images even in low-light conditions.

The Tasco 1575 is also designed with a durable and robust construction. Its waterproof and fog-proof design makes it suitable for use in various weather conditions, allowing users to focus solely on their observations without worrying about equipment failure. The rubberized exterior provides a secure grip and added protection against impacts, ensuring that the scope can withstand the rigors of outdoor adventures.

In terms of portability, the Tasco 1575 is relatively lightweight, making it easy to carry during long excursions. Additionally, it comes with a comfortable tripod, providing stability for prolonged viewing sessions. This feature is particularly beneficial for spotting distant details that require steady observation.

One of the key technologies integrated into the Tasco 1575 is its multi-coated optics. This technology minimizes glare and maximizes light transmission, resulting in sharp images with minimal distortion. The eyepiece features a comfortable design that accommodates users wearing glasses, ensuring a pleasant viewing experience for all.

Overall, the Tasco 1575 combines high magnification with durable construction and advanced optics, making it an excellent choice for users seeking a reliable spotting scope for various outdoor applications. Whether for leisurely birdwatching, hunting expeditions, or nature observation, the Tasco 1575 stands out as an exceptional tool that meets the demands of avid outdoor enthusiasts. Its blend of features, technologies, and characteristics ensures that users can capture the beauty of the natural world with confidence and clarity.
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