60mm Multi-Use Guide Scope with Helical Focuser
60mm Multi-Use Guide Scope with Helical Focuser F4 for CCD Astronomy Camera
This solidly built 60mm Guide Scope will help guide you to capturing higher quality astrophotos. With its 60mm lens and smooth helical focuser, the versatile 60mm 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 60mm 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 60 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 35mm 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 astrophotos exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25" eyepiece installed. For example, inserting a 25 mm eyepiece creates a 9.6x60 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming. (Eyepieces sold separately).
Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide starsDesigned for use with the guider CCD astronomy camera or eyepieceHelical focuser collar will not rotate attached autoguider devices during focus adjustmentsUsed as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately)Net weighs just 31.19zSpecification:
Type of Telescope: Achromatic RefractorLens: CementedTube material: Aluminum AlloyAperture: 60mm / 2.36inFocal Length: 240mm /9.45inFocal Ratio: F4Coating: Fully multi-coatedBest for imaging: Deep skyUser level: IntermediateRough Focusing Range: 35mmFocuser: Helical Focuser with 8 mm TravelConnection to eyepiece: 1.25inchTube diameter: 66mmDewcap diameter: 69mmTotal Length: 270mmIncluded accessories: Tube Rings and Dovetail RailNet Weight: Approx. 884g / 31.18oz
60mm Primary MirrorGuiding Bracket w/ 90mm Dovetail Plate1.25inch Helical Focuser6PCS Metal Thumbscrews
- Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars
- Helical focuser collar will not rotate attached autoguider devices during focus adjustments
- Can also be used as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately)
- Weighs just 2 lbs., 0.1 oz.
- Best for imaging
- User level：Intermediate
- Optical design：Refractor
- Optical diameter：60mm
- Focal length：240mm
- Focal ratio：f/4.0 Field of view - angular：
- Coatings：Fully multi-coated
- Glass material：Crown/Flint
- Resolving power：2.30arc*sec
- Lowest useful magnification：9x
- Limiting stellar magnitude：11.5
- Finder scope：None
- Mount type：Optical Tube without Mount
- Astro-imaging capability：Lunar, planetary & long exposure
- Tube material：Aluminum
- Image orientation：Viewing angle
No Adjustable focus：Yes
- Length of optical tube:10.2 in.
- Weight, optical tube:2.0 lbs.
- Weight (oz.):32
- Additional included accessories:
Two guide scope rings, Vixen-style dovetail mounting bar w/ tapped holes, Objective lens cap, metal
- Other features
Helical focuser and sliding extension tube, Compression ring eyepiece holder, Fine gradation scale on focuser and extension tube