Astrodon MegaMOAG 3" to 4" Off-Axis Guider 2 ports

The MegaMOAG takes the design of the MonsterMOAG and adapts it for telescope systems with larger optical openings. It comes with the same camera-side adapter as the MonsterMOAG but it has a 4" opening on the scope side and comes with a 4 1/16" - 24 male adapter to connect to larger extension tubes found on the back of many larger telescopes. The body is larger and the pick-off prism is further from center. It has the same 1.25" body thickness as the MonsterMOAG. It comes with either a single guide port (MeMOAG-1) or two ports (MegaMOAG-2), as shown in the picture. As with the MonstermOAG, a black metal plate will cover the unused port for a MeMOAG-1. A second port assembly can be added at a later time with the MonsterMOAG Extra Port Assembly (MMOAG-PORT) .

Specification:

For largest CCDs (KAF16803, KAF9000)Small backfocus 1.25" of the body
Total backfocus with both provided adapters is 1.45"
Solid body to hold large camera, filter wheel, filters
Large central opening of 2.55"Guide in front of your filtersMore and brighter guide stars with unfiltered lightGuide in the main optical beam
Avoid differential flexure of guide scopeFixed guider position for automated data acquisitionHelical focuser for precision focusing of guide camera
Shorter 1.25" manual holder for guide camera also provided if the helical focuser is too tall to reach focus
Male 2.7"-24 scope-side adapter (0.1" thick) includedFemale 2.7"-24 / Male 3"-24 camera-side adapter (0.1" thick) includedAdapters have dovetail connections to prevent tiltAdapters can be rotated and locked to align with telescope and cameraWide variety of adapters and different backfocusAdditional guide port assemblies come with prism, prism spacers, oval holder, helical focuser and 1.25" manual holder