Coupling Port Ring, 2.9" to 2.9"
back-to-back flange, Item SR29:
$69
This 2.9" back-to-back flanged coupling adapter will allow you to couple a Sidewinder, Targetron or Zerotator to a Sidewinder, Targetron or Zerotator, via the three set screws that are opposed by 120 degrees around the edge of anyone of these items. The profile of the coupling is about 1/8-inch.
Coupling Port Ring, 2.7" to 2.9"
back-to-back flange, Item MR2729:
$69
This back-to-back flanged coupling adapter will allow you to couple a MicroGlide focuser, with it's 2.7" docking format, to the output of a Sidewinder, Targetron or Zerotator (2.9" format), via the three set screws that are opposed by 120 degrees around the output of the three items above. The profile of the coupling is about 1/8-inch.
Coupling Port Ring, 3.1" to 2.9"
back-to-back flange, Item A388:
$69
This back-to-back flanged coupling adapter will allow you to couple a Sidewinder, Targetron or Zerotator to the output [moving tube] of your 3" MacroGlide ALPHA or OMEGA focuser, via the three set screws that are opposed by 120 degrees around the edge of the MacroGlide's moving tube output. The profile of the coupling is about 1/8-inch.
Extension Flange, 3" Outside Diameter
for Targetron/Sidewinder rear ports
This extension flange has a male 2.9" outside diameter circular dovetail flange on one end, and a 2.9" inside diameter on the other. It will extend the rear port of the Targetron to accommodate special reverse parfocusing requirements. Normal installations should not require this extension, but in some circumstances, this may be the only solution. It should not be used unless necessary because it extends your profile, which is a NO-NO! However, if you can spare the profile, and need this extension to address a reverse parfocusing issue, then this extension flange may be what you need.
1" Extension Flange (shown), Item EXT1: $89
2" Extension Flange, Item EXT2: $99
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