SVBONY 50mm F3.8FMC Multi-Use Guide Scope Helical Focuser Optional 1.25"Eyepiece

Description

Multi-Use Guide Scope
For those nights when you don't plan to capture astrophoto exposures, it can double as a straight-through finder scope with an optional 1.25" eyepiece installed.
Nylon-tipped thumbscrews
Six nylon-tipped thumbscrews of Guiding Bracket aviod scratching the guide scope as the same
Fast focusing and further precise focusing design
The pull-and-focus (Stroke 30mm)design helps you quickly lock to the stars you want to see.Further precise focusing design can help you further lock the details of the stars and make your exploration of the universe smoother and easier
This solidly built 50mm Guide Scope will help guide you to capturing higher quality astrophotos. With its 50mm lens and smooth helical focuser, the versatile 50mm Multi-Use Guide Scope with Helical Focuser is an ideal addition to any astrophotographers collection of gear. What's more, you can use this handy scope as a deluxe, straight-through 50mm finder by inserting an optional 1.25" eyepiece (sold separately). A practical benefit of this is that prior to guiding, you can insert an eyepiece into the guide scope and easily align the guide scope with your main imaging telescope. Then remove the eyepiece and attach your autoguider camera.
The 50 mm Multi-Use Guide Scope with Helical Focuser features a built-in helical focuser that allows precise focus adjustments with zero flexure for rigid performance. Obtaining a clear, sharply focused view of potential guide stars is quick and easy with this sturdy scope. The fixed-orientation focuser mechanism will not rotate inserted autoguider cameras or eyepieces when focus adjustments are made. The helical focuser simply moves the attached device inwards or outwards while maintaining its orientation. This convenient feature means your field of potential guide stars will not rotate as focus is adjusted, further increasing ease of use.
The Multi-Use Guide Scope features a machined, knurled ring to make fine focus adjustments nice and easy, while a thumbscrew lets you lock-down the focuser in-place once adjustments are complete. The focuser boasts 8 mm of precise helical focus travel, plus telescoping drawtube housing provides up to 30 mm of additional back-travel if needed for your particular autoguider device. No extension tubes necessary! A compression ring fitting keeps any inserted autoguider cameras or eyepieces free of pesky scratches.
The Multi-Use Guide Scope with Helical Focuser also features male T-threads on the focuser collar for secure threaded attachment of guide cameras equipped with female T-threads.
This complete guide scope comes with two heavy-duty guide scope rings and a 3.5" long, 1.18"wide dovetail mounting bar, which is compatible with dovetail finder scope bases for easy attachment. The dovetail bar features five threaded through-sockets for versatile attachment options. The included guide scope rings feature six metal thumbscrews for precise aiming.
For those nights when you don't plan to capture astrophoto exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25" eyepiece installed. For example, inserting a 20 mm eyepiece creates a 9.5x50 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming. (Eyepieces sold separately).
For those nights when you don't plan to capture astrophoto exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25" eyepiece installed. For example, inserting a 20 mm eyepiece creates a 9.5x50 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming. (Eyepieces sold separately).
Features
:
Versatile 50mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars
Designed for use with the guider CCD astronomy camera or eyepiece
Helical focuser collar will not rotate attached autoguider devices during focus adjustments
Used as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately)
Net weighs just 21.31oz
Package Includes
50mm Primary Mirror
Guiding Bracket w/ 89mm Dovetail Plate
1.25inch Helical Focuser
6PCS Metal Thumbscrews
Model
SV106 50mm
SV106 60mm
SV165 30mm
Type of Telescope
Achromatic Refractor
Achromatic Refractor
Lens
Cemented
Cemented
Tube material
Aluminum Alloy
Aluminum Alloy
Aperture
50mm / 1.97in
60mm / 2.36in
Focal Length
190mm / 7.48in
240mm /9.45in
120 mm
Focal Ratio
F3.8
F4
F4
Coating
Fully multi-coated
Fully multi-coated
FMC
Best for imaging
Deep sky
Deep sky
Deep sky
User level
Intermediate
Intermediate
Rough Focusing Range
30mm
35mm
Focuser
Helical Focuser with 8 mm Travel
Helical Focuser with 8 mm Travel
Connection to eyepiece
1.25inch
1.25inch
1.25inch
Tube diameter
54.5mm
Dewcap diameter
61mm
Total Length
240mm
ncluded accessories:
Tube Rings and Dovetail Rail
Support interface
1.25in Or M42*0.75 mount Camera
1.25in Or M42*0.75 mount Camera
1.25in Or M42*0.75 mount Camera
Focuser Type
Front Part Focuser
Back Focus
Adjustable
Dovetail includes
1/4″ screw hole
Tube Travel
45 mm
Body Size
92x56x78mm / 3.62x2.20x3.07 in
Surface technology
Aluminum Profile
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