#19830 - OPTEC-4300 to Female Optec/DSI 3.5"Adapter.

$135.00

Quantity
In Stock: 15

The #19830 OPTEC-4300 to female Optec/DSI 3.5" threaded receiver allows any combination of our DSI 3.5-inch spacers to be easily installed on the camera side of the Gemini Focusing Rotator.

  • Optec/DSI 3.5" Threaded Spacers.
  • Gemini Focusing Rotator.
  • Inside Diameter: 3.5" DSI Thread
  • Outside Diameter: 4.95" (125.7mm)
  • Overall Height: 0.42" (10.7mm)
  • Clear Aperture: 3.46" (88mm)
  • Weight: 3.8 oz (110 g)
  • Back-Focus Usage: 0.1" (2.5mm)