Optec Astro-Physics 2.7x24tpi Extension Tubes

ITEM #
OP-19883

Spacer Lengths:

  • 0.5-inch
  • 0.75-inch
  • 1-inch
  • 1.5-inch
  • 3-inch
  • 4-Piece Set: 1 each of the 0.5-inch, 0.75-inch, 1-inch, and 1.5-inches
  • 5-Piece Set: 1 each of the 0.5-inch, 0.75-inch, 1-inch, 1.5-inches, and 3-inches 

 

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  • Regular price $30.00
  • $28.00
  • You save: $2.00 (6%)

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Optec Astro-Physics 2.7x24tpi Extension Tubes

These Optec extension tubes are made to fit an Astro-Physics 2.7-inch connection; these spacers will add either 0.5-inch, 0.75-inch, 1-inch, 1.5-inch, or 3-inch to your path length. 

Each spacer has a clear aperture of 2.52-inches (64 mm) and threads on with 24tpi.

 

These two sets are listed on the size tab:

- - The 4-Piece set includes 1 each of the 0.5-inch, 0.75-inch, 1-inch, and 1.5-inch spacer lengths.

- - The 5-Piece set includes 1 each of the 0.5-inch, 0.75-inch, 1-inch, 1.5-inch, and 3-inch spacer lengths. 

 

SPECIFICATIONS

Back Focus12.7mm
Back Focus19.1mm
Back Focus38.1mm
Back Focus76.2mm
Camera Side ConnectionMale 2.7x24tpi
ManufacturerOptec
Telescope Side ConnectionFemale 2.7x24tpi