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bird watching
These Universal Lens Filters fold up into cup to cover front of camera lenses and scopes of the size 65-89mm in diameter
The Quark contains a custom Daystar Instruments 4
These filters require additional quality control steps and additional fabrication and testing time
C-mount adapter or 2" drawtube adapters are optionally available
Upgrade Daystar ATM/University Filter to Quantum solar astronomy bird watchingUpgrade repair of older Daystar ATM, University housing to new style Quantum Electronic Control housing. Older style Daystar ATM or UNI housings date back to as early as 1973. Original housings were 110VAC or 220 VAC and required a sine wave electrical current so they previously could not be used with 12VDC power from an inverter. Electronic components in the older ATM housing style became obsolete in the mid 1990's. Daystar Filters no longer services
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