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The text below changes depending on your selections

#SkyTrackerOrSkyGuiderPro

This adapter is designed to fit the:

iOptron SkyTracker Pro, or the iOptron SkyGuider Pro
Neewer 1.25x-2.5x Right Angle Viewfinder (It may also fit similar copies)

The internal diameter is 30.3mm. The depth is 17mm.

The mounting flange width is 22mm x 15.5mm. The depth (undercut) is 1.65mm, and the flange thickness is: 1.35mm.

#SkyWatcherOrMSM

This adapter is designed to fit the:

Move Shoot Move Polar Scope or Sky Watcher HEQ5
Neewer 1.25x-2.5x Right Angle Viewfinder or similar copies.

The Internal diameter is 30.3mm. The depth is 23mm.

#Cannon

Larger 26.5x20.5 flange
See drawing

#LensCap

This lens cap is designed to fit the:

Neewer 1.25x-2.5x Right Angle Viewfinder (It may also fit similar copies)

The cap has a snug fit, and uses the rubber eye cup grip to hold in place.

Design:

#SkyTrackerOrSkyGuiderPro #SkyWatcherOrMSM

It may also fit other polar scopes, measure your scope to find out.

The adapter fits directly to the scope, there is no need to use a second adapter.
It secures to the polar scope using either three M3 x 6mm or #4 x 1/4" screws. (Not included)

I recommend using the 6mm thumbscrews that are normally sold for use with computer cases.

The easy way to install the screws is to drive them using a power drill, the spinning of the drill will heat the screw due to friction, and once heated they will self-tap the nylon plastic.

Each screw tightens up against a special internal nylon tab. This prevents metal-on metal contact or damage to the polar scope finish.

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