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.
DSI 3.5 Extensions #19891 - #19895
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DSI 3.5 Extensions #19891 - #19895
From $65.00 - $85.00
#19911 - Optec-DSI 3.5x24tpi to M54 camera adapter
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#19911 - Optec-DSI 3.5x24tpi to M54 camera adapter
$95.00
#19830 - OPTEC-4300 to Female Optec/DSI 3.5"Adapter.
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#19830 - OPTEC-4300 to Female Optec/DSI 3.5"Adapter.
$135.00
#19896 - Optec-DSI 3.5x24tpi (male) to AstroPhysics 2.7" female adapter
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#19896 - Optec-DSI 3.5x24tpi (male) to AstroPhysics 2.7" female adapter
$75.00
#19923 - Optec-DSI 3.5" to M68 x 1mm Adapter
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#19923 - Optec-DSI 3.5" to M68 x 1mm Adapter
$95.00
#19905 - Optec-DSI 3.5x24tpi male thread adapter to 2-inch receiver.
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#19905 - Optec-DSI 3.5x24tpi male thread adapter to 2-inch receiver.
$95.00
#19889 - DSI 3.5 Extension Tube Set, 4-piece set
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#19889 - DSI 3.5 Extension Tube Set, 4-piece set
$195.00
#19897 - DSI 3.5 Retaining Ring
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#19897 - DSI 3.5 Retaining Ring
$30.00
#19890 - DSI 3.5 Extension Tube Set, 5-piece set
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#19890 - DSI 3.5 Extension Tube Set, 5-piece set
$250.00
#19921 - Optec-DSI 3.5 x 24tpi male thread to OPTEC-3000-S
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#19921 - Optec-DSI 3.5 x 24tpi male thread to OPTEC-3000-S
$95.00
#19918 - Optec-DSI 3.5 x 24tpi male thread to M72 x 1mm female thread adapter
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#19918 - Optec-DSI 3.5 x 24tpi male thread to M72 x 1mm female thread adapter
$95.00
#19913 - Optec-DSI 3.5x24tpi male thread to male SCT 2"x24tpi thread adapter.
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#19913 - Optec-DSI 3.5x24tpi male thread to male SCT 2"x24tpi thread adapter.
$95.00
#19916 - Optec-DSI 3.5x24 male thread to M92x1mm male Takahashi thread
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#19916 - Optec-DSI 3.5x24 male thread to M92x1mm male Takahashi thread
$95.00
#19915 - Optec-DSI 3.5x24tpi male thread adapter to male 3"x24Ttpi thread standard.
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#19915 - Optec-DSI 3.5x24tpi male thread adapter to male 3"x24Ttpi thread standard.
$95.00
#19914 - Optec-DSI 3.5x24tpi male thread adapter to STL 2.156x24tpi thread.
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#19914 - Optec-DSI 3.5x24tpi male thread adapter to STL 2.156x24tpi thread.
$95.00
#19909 -
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#19909 -
$95.00
#19919 - Optec-DSI 3.5 x 24tpi male thread to ONAG XM dovetail adapter.
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#19919 - Optec-DSI 3.5 x 24tpi male thread to ONAG XM dovetail adapter.
$95.00
#19898 - M90x1mm female to Optec-DSI 3.5x24tpi
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#19898 - M90x1mm female to Optec-DSI 3.5x24tpi
$95.00