About this product
Part Number: 10199
Features an Ohara ED doublet objective that includes an S-FPL53 ED glass element.
242 mm focal length results in a fast f/4.8 focal-ratio.
Precise non-rotating helical focuser for fine focus adjustment.
Has both a T2 thread and 1.25” socket so connecting your autoguider, camera or eyepiece is easy.
Alignment rings are provided, each with 3 nylon-tipped screws.
The bracket's mounting foot is a regular Sky-Watcher / Celestron / Vixen-style mini dovetail so fits into most finderscope shoes.
- Weight: 865g
- Length: 263mm
- Tube diameter: 56 mm
- Widest diameter (excluding rings): 60mm
NOTE: Not suitable for use with a Star Diagonal (eyepieces won't achieve focus).
- Highest practical power: x100 (Eyepieces not supplied)
- 50mm Objective
- 242 mm (f/4.8) Focal Length
- 1.25" Fine Helical Focuser
- T2 thread / 1.25” Focuser Barrel for Camera / Eyepiece Connection
- Doublet ED lens with 2 Ohara glass lenses (1 lens S-FPL53)
- Guider Rings & Bracket
- Sky-Watcher / Celestron / Vixen Style Dovetail Foot for Standard Finder Shoes
Field of View Simulator
|Average Rating (4 Reviews): |
Tuesday, 7 May 2019 | Ron.
This is an elegant and very practical little scope to facilitate
guiding your mount to capture data from your main Camera.
one big plus, is the low weight factor, which is very helpful when balancing one's imaging setup.
It can pick stars easily too, great objective despite it's 50mm. diameter.
the price in another plus factor too.
Thursday, 10 May 2018 | Wayne
The day I received this amazing bit of kit, I was out that evening testing this with a Loadstar x2 camera and WOW!!! pinpoint stars across the whole FOV. I have used many finders over the years and this one is quality and very easy to use, plus no guide camera cable getting twisted when focusing ☺☺☺
You won't be disappointed
Friday, 4 May 2018 | Robert
This finder has the looks, but the build quality and performance are where this finder shines.
Taking it out of the box it feels like a miniature telescope instead of a finder. It is beautifully made and the focuser is smooth. Connecting a guide camera is simple and feels secure. I have used it on 20 minute exposures with no issues.
There are cheaper options out there but nothing comes close to the quality of this finder. I just wish they had included a diagonal.
Monday, 19 February 2018 | David
This is just what I have been looking for - longer FL than a converted finderscope but shorter than an ST80. Better focuser than both the aforementioned and much nicer glass ! The qulaity doesnt disappoint - very nicely made, very smooth and well engineered focuser and well made rings and dovetail. As a trial I focused on a rock about a mile away and defocused in and out and the rock stayed bang in the middle of the fov. The focuser has a T2 male thread on the aft end so I fitted a T2 to C mount adapter to screw my camera on to to create a slop free system. It works superbly. Negative points = none at all.
Please fill in the form below to ask a question.
Q1. Will it achieve focus with a 1.25" prism diagonal (for example, the cheap Celestron one)?
No. Unfortunately not.
The Sky-Watcher EvoGuide 50ED will not work with a star-diagonal so is not suitable for use as a compact rich-field telescope.