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Important Shipping Info
  • Orders ship from Torrance, California.
  • Orders placed after 12:00 PM Pacific Time will be shipped the next business day.
  • Orders placed over the weekend will be shipped on the following Monday.

DUE TO EXTREMELY HIGH DEMAND, WE WILL NOT BE TAKING NEW ORDERS UNTIL MONDAY, DECEMBER 14.

Optical Specification Calculator

Highest Useful Magnification
Limiting Stellar Magnitude
Light Gathering Power
Resolution Rayleigh
Resolution Dawes