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30mm Back Focuse
The focuser (Stroke 30mm) helps you quickly lock the stars you want to see. The focuser simply moves the attached device inwards or outwards while maintaining its orientation, which means your field of potential guide stars will not rotate as focus is adjusted, further increasing ease of use.
10mm Helical Focuser
After focusing, you can see details of the image clearer and brighter. The focusing accuracy is up to 0.1 mm. The 8 mm focusing stroke will meet your needs for viewing guides.
Metal Hoop with Dovetail & 1.25inch
The Multi-Use Guide Scope features a machined, knurled metal hoop to make fine focus adjustments nice and easy, while a thumbscrew lets you lock-down the focuser in-place once to complete adjustments. And the plastic on the endpoint keeps the scope itself free of pesky scratches.
Fully Multi-coated
Fully Multi-coated Glass means multiple coatings on all lens surfaces and all air-to-glass surfaces are anti-reflective multi-layer coated. And FMC lens has greater advantages in increasing the light transmission, delivering bright, clears and crisps images even in low-light conditions.
Stray Light Elimination
The elimination design improves the observation efficiency since less light is lost due to reflection and improves the contrast of the image by elimination of stray light.
Meticulous Design
A compression ring fitting keeps any inserted autoguider cameras or astronomy accessories free of pesky scratches. CNC machined aluminum alloy body with laser engraving letters has a long performance life.
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How to Use a Guider Scope as TelescopeTest 1: SV106 Guider Scope & 68 degree 20mm eyepieceAs the SV106 guider scope focal length is 190mm, so it works with the 20mm eyepiece, the magnification power is 8.5x. I could see the building clearly with adjust the back focus distance 30mm. the words on the building is very clear.
![]() Test 2: SV106 Guider Scope and SV105 Camera
I tested the SV105 camera with the SV106 Guider Scope, use sharpcap 3.2 on windows 10 computer. Just put the 1.25 inch camera into the SV106 scope double helical focuser hole directly, and adjust the backfocus distance, until get a clear image on the computer. I focus the SV106 scope to the outside building, and take this picture with the Mi 5, actually the picture is much clear on the computer screen, when I take this picture on my smartphone, then it is not that clear as see it directly. (I am sorry about my photography skill.)
Test 3: SV106 Guider Scope & 2x Barlow & Diagonal & Eyepiece
As I post in the facebook group, I could see image clearly through the eyepiece directly, but the image is not that clear as TEST 1 results. Because when the light reflected by the Diagonal, and go through the 2x barlow, it has been loss some. As you want to use the 90 degree diagonal with this SV106 finder scope, yes, it would work. But if you want to see the much more clear image, I don't recommend you to use the Barlow and diagonal. Thanks very much!
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