Page 52 - Filters

To Order, call toll free: 1-877-7SURPLUS

MTD 30MM THREADED YELLOW FILTER

Glass yellow filter with 30mm clear diameter. Mounting is 38mm diameter with 36mm diameter threads. Has threaded retaining ring to hold the filter in place.

M1603 $1.75

50MM DIA SHADE 5 DARK FILTER

These were made to be cut for eyeglasses for some fil- ter application. Dark optical glass polished on both sides. Master box indicates "shade 5". 50mm diame- ter by 3mm thick. Might make a nice moon filter for 2" eyepieces.One of our customers advises that these "are replacement inserts for brazing (or welding) gog- gles. They are used behind clear glass protective (and

replaceable) covers of the same diameter." Thanks Jerry

M2067 $0.50 or 10 for $4.00

RECTANGULAR GOLD CTD FILTER/BEAMSPLITTER

4.25" X 2" X 0.06" thick. Master box is marked "GOLD/CR". Not sure what the original application was but it acts almost like a beamsplitter. One side reflects about 75% while transmitting about 25%. The other side transmits about the same but with very lit- tle reflection.. Looks like a fun piece to experiment with.One of our customers was able to do an analysis of

its composition. Here's his findings: "180 Angstroms of gold deposited over 30 angstroms of chromium on glass containing tin oxide"

M2068 $0.75 or 10 for $5.50

ND WINDOW, 4.3" X 2" X .3" THICK

Neutral density window. Optical glass, marked on the side ND320. Not sure what the 320 refers to. Appears to be medium density. Has arrow on side pointing to one surface. Made by Perkin Elmer for some precision specialty application.

M2083 $5.25

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Tasco 1575 manual MTD 30MM Threaded Yellow Filter, 50MM DIA Shade 5 Dark Filter, Rectangular Gold CTD FILTER/BEAMSPLITTER

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.