QUALITY ASSURANCE NOTE: It has come to my attention that others use less than adequate couplings on their products that induce flexure. They look very similar to VSI's exclusive docking/coupling systems. They are NOT! VSI's exclusive docking/couplings are not like any other flimsy, flexure-ridden connections used on other products. A good analogy would be a comparison between a (less than) $50 and a $300 (and up) rifle scope. The lesser rifle scopes looks identical to the more expensive ones but, in operation, the differences are very apparent, optically and [especially] mechanically. Let the buyer beware, you receive quality and functionality only when you are willing to expend an appropriate dollar amount. VSI's proprietary flared flange (circular dovetail) docking inserts have extremely thick-wall construction and are locked in place by three set screws opposed by 120 degrees. When you tighten these set screws against this special [angled] flange, it not only pushes directly against the insert ring, but it also pushes laterally to compress the ring inwards against external and internal shoulders, which locks it in place like a good weld - rock-solid! - PVS
2" format Output Reducer with Quad-Lock feature, Item A312R (right ): This 3.1" diameter by 1.5" deep reducer slips in the top of the ALPHA/OMEGA's moving tube and is secured by 3 set screws opposed by 120 degrees. This reducer also has a 15 degree flange cut in the perimeter to secure the reducer into the moving tube. With our exclusive Quad-Lock feature, you can secure an 2" barrel-nose adapter into the focuser like it was welded in place. No other focuser offers this degree of security and rigidity.
2" format Output Reducer w/Quad-Lock, for ALPHA/OMEGA only, Item A312R: $99
Threaded Output Ring Adapters (right): Designed to adapt your ALPHA/OMEGA's moving tube output to large-format threaded couplings on the following refractors. They are similar to the A312R above, incorporating the 15 degree flanged ring, but fit flush with the top of the focuser's moving tube and protrude into the moving tube only 0.5 inches. Threads are available in three formats, AstroPhysics 2.7"-24tpi, Meade 2.7"-16tpi and Takahashi 72mm-1mm. Hint, screw the ring onto the component first. Then insert the ring into the focuser's moving tube and tighten the three set screws (do not overtighten). This method will allow the ring to be locked into the threads by compression. Remove by loosening the set screws first.
Threaded Output Ring Adapter for AstroPhysics, 2.7"-24tpi, Item A3124: $89
Threaded Output Ring Adapter for Meade, 2.7"-16tpi, Item A3116: $89
Threaded Output Ring Adapter for Takahashi, 72mm-1mm, Item A3172: $89
Standard Output Ring Adapter for 42mm-0.75mm T-thread CCD Cameras, Item A42ST (right): This standard purpose adapter is threaded for most of the standard CCD cameras on the market using the 42mm-0.75mm thread pitch. It is also similar to the above adapters, incorporating the 15 degree flanged ring, and fits flush with the top of the MacroGlide focuser's moving tube, except for the male 42mm thread which protrudes outward 0.2 inches. In other words, this is another zero-profile designed adapter that, when installed, consumes no profile.
Standard Male Output Adapter for 42mm-0.75mm T-thread, Item A42ST: $99
Special Output Ring Adapter for SBIG's STL 11 Megapixel CCD Camera, Item A31ST (right): This special purpose adapter is threaded for the proprietary SBIG 2.156"-24tpi format. It is also similar to the above adapters, incorporating the 15 degree flanged ring, and fits flush with the top of the MacroGlide focuser's moving tube, except for the male 2.156"-24tpi thread which protrudes outward 0.25 inches.
Special Male Output Adapter for SBIG STL, 2.156"-24tpi, Item A31ST: $99
3.1" Flange to 3.25"-16tpi Male Output Ring Adapter, Hex 2 to MacroGlide focuser, Item A325 (right): This special output adapter will allow you to dock any Meade 3.25"-16tpi large-format accessory to the output [moving tube] of your MacroGlide ALPHA or OMEGA focuser. However, it's main purpose is to dock our Giant Hexagonal 2 turret to the moving tube output of our 3" MacroGlide focusers.
3.1" Flange to 3.25"-16tpi Output Ring, Hex 2 to MacroGlide Focuser, Item A325: $99
3.1" Flange to 2.9" Flange Coupling Ring Adapter, Sidewinder/Targetron/Zerotator to MacroGlide focuser, Item A388 (right): 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.
Coupling Port Ring, 3.1" to 2.9" Back-to-back flange, Item A388: $69
![[return to home]](bareturn.jpg)
![[top of the page]](topage.jpg)