Optec/DSI 3.5" Adapters

Spacers and Adapters for the large Optec/DSI 3.5" x 24tpi threaded spec.  Similar to the Astro-Physics 2.7" extension rings, adapters, and spacers our larger 3.5-inch standard provides a full 83mm of clear aperture.
#19910 - Optec-DSI 3.5x24tpi male thread adapter to OPTEC-2400 male dovetail.
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#19910 - Optec-DSI 3.5x24tpi male thread adapter to OPTEC-2400 male dovetail.
$95.00
#19899 - M117x1mm female to Optec-DSI 3.5x24tpi female thread adapter.
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#19899 - M117x1mm female to Optec-DSI 3.5x24tpi female thread adapter.
$95.00
#19892 - DSI 3.5 Extension - 3/4" Length
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#19892 - DSI 3.5 Extension - 3/4" Length
$65.00
#19802 - DSI 3.5x24tpi Male Thread To OPTEC-3600 Adapter
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#19802 - DSI 3.5x24tpi Male Thread To OPTEC-3600 Adapter
$100.00
#19832 - OPTEC-4300 to Male Optec/DSI 3.5"Adapter.
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#19832 - OPTEC-4300 to Male Optec/DSI 3.5"Adapter.
$135.00
#19831 - Optec/DSI 3.5" to OPTEC-4300 Adapter.
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#19831 - Optec/DSI 3.5" to OPTEC-4300 Adapter.
$135.00