New from William Optics! A unique 50mm CCD straight-through guidescope with helical focusing.
- 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
- 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
- Tube diameter = 54.6mm (2.15"); Dewshield diameter = 58.1mm (2.29")
- Tube weight (without eyepiece) = 15.0oz (425g)
- Not included; sold separately
Sep 25, 2015
Great Guide ScopePros:
Compact,Lightweight,Quality Lenses,Easy to UseCons: Comments:
Slightly longer focal length than the "mini" scopes, provides better guiding. High quality optics make guide stars pinpoints.
This review was provided courtesy of AgenaAstro.comFeb 7, 2014
Sturdy, but needed extension for STiPros:
Well Made,Strong ConstructionCons: Comments:
Well made little guide scope. I did need an extension (Blue Fireball 1.25" Eyepiece Extension Tube with 1" Extension # X-01) to reach focus with an SBIG ST-i, which makes it pretty long, so I use 3 rings to help eliminate flex. YMMV with different guide cameras.
This review was provided courtesy of AgenaAstro.comSep 27, 2013
Lightweight,Strong Construction,Quality LensesCons: Comments:
I've found I need to rack it out quite a bit - almost all the way - to bring my QHY5L-II to focus. For many guiders, an extension tube may be needed. Typical of WO gear, the construction is more than solid.
This review was provided courtesy of AgenaAstro.comSort by