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William Optics 50mm CCD Imaging Guide Scope with Bracket # M-GB50
| Brand | William Optics |
| Part Number | M-GB50 |
| Availability | available |
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Product Info
Manufacturer Description
New from William Optics! A unique 50mm CCD straight-through guidescope with helical focusing.
Optical Features
- Fully multi coated 50mm f/4 (focal length = 200mm) achromatic objective
- Designed for use with small-chip CCD autoguider cameras having a 1.25" nosepiece
- Can be used as an optical finder but most eyepieces will require an 0.5"-1" extension tube to reach focus. Eyepiece and extension not included
- 90-deg erecting prism diagonal with helical focusing available separately to convert guidescope into a right angle finder
Mechanical Features
- 1.25" holder features brass compression ring and 3 locking screws to securely hold your camera
- Helical focusing with 15mm (0.59") of focus travel (be careful not to exceed this or the eyepiece holder will separate from the finder)
- Holder / camera are rotatable
- White powder painted with excellent fit and finish that are the hallmark of every William Optics product
Mechanical Specifications
- Tube diameter = 54.6mm (2.15"); Dewshield diameter = 58.1mm (2.29")
- Tube weight (without eyepiece) = 15.0oz (425g)
Finder Rings / Bracket
- 6-point 50mm finder bracket with delrin tipped screws included
- Dovetail base/screw to mount bracket on all William Optics refractors included
- Bracket can also be mounted on other telescopes that use a 5mm or 6mm mounting screw; not compatible with Vixen/Synta-style base
- Bracket weight = 9.5oz (269g)
Reviews
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Jun 26, 2015
William Optics 50 mm 90-deg Finder scope.
Pros:Accurate,Strong Construction,Easy to Use,Quality Lenses,Very well made
Cons:NONE AT ALL
Comments:I needed a 90-deg finder for my refractor telescope and I wanted a quality scope. This fit the bill perfectly.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Jan 25, 2014Nice Little Finder
Pros:Accurate,Compact,Easy to Use
Cons:Difficult To Focus,Not For Guiding,No instructions
Comments:I purchased this expecting to be able to use it as both a visual finder and a guide scope. I since discovered that this was just a visual finder scope.
Bottom Line: Would you recommend this item? Yes
It is well made and matches my WO GTF-81 perfectly. The scope fits in the finder rings very well and performs well too. I use it with an illuminated reticule to ensure I line things up properly in the crosshairs. This works well when the scope and finder are properly aligned.
My niggles with this are: There were no instructions. Not a big issue, but I had to work out for myself what to do, and how to strip it down. Secondly the focuser uses the helical method which when turning the illuminated reticule it can jam on the mount rings making it difficult to focus.
As the finder has a right angle prism it means that there is not enough inwards focus travel for my CCD camera to guide with.This review was provided courtesy of AgenaAstro.com
Oct 1, 2013WO 50mm Right Angle Finder
Pros:Accurate,Strong Construction,Easy to Use,Quality Lenses
Cons: Comments:I bought this finder scopt for my C102GT refractor and it works great. It's very good optically and almost as good as my Sellarvue 9X50. I bought an Agena 20mm illuminated 70
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
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