SVBONY Cheshire Collimation Eyepiece 1.25'' for Newtonian, SCT Telescope,Astronomical Telescope Accessory SV197
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Specifications
- Brand Name
- svbony
- High-concerned chemical
- None
- Type
- -, Cheshire Collimating Eyepiece
- Barrel Size
- 1.25 inches (31.7 mm)
- Field of View
- others
- Origin
- Mainland China
- Model Number
- SV197
- Body Material and Processing
- Aluminium & CNC
- Crosshairs of Material
- Steel
- Fit
- Newtonian and SCT reflector telescopes
- Net Weight
- 156g / 5.51oz
- Dimension
- 141*41*32mm
Product Description
SVBONY SV197 Collimation Eyepiece 1.25" Cheshire Collimating Eyepiece for Newtonian Reflector Telescope
Main Features:
Make your seeing experience much better with this simple tool! Quickly and precisely align your Newtonian reflector telescope!
Stars don't come to a pinpoint focus, Planets look slightly hazy, Sometimes optics yield images that are less than perfect. To prevent this from happening, you'd better collimate your Newtonian telescope with a collimator.
The 1.25" collimator is an excellent accessory. It can take some time to get used to aligning both the secondary and primary mirrors and this short collimator can make it much easier. The short collimator for mirror (reflector) telescopes has a 45-degree plate for easier visual accuracy. Collimation is the alignment of elements inside an optical system like a telescope.
Collimating a telescope consists of adjusting the tilt and position of the mirrors and lenses to ensure that the focal point reaches optimum focus at the point from which the image will be viewed (the eyepiece or possibly a camera).
●Great for quick and precise alignment of your Newtonian reflector telescope, to get the most out of the Newtonian scope you really need to align or collimate the mirrors.
●It can take some time to get used to aligning both the secondary and primary mirrors and this short collimator can make it much easier
●The short collimator for mirror (reflector) telescopes has a 45-degree plate for easier visual accuracy
●Collimating a telescope consists of adjusting the tilt and position of the mirrors and lenses to ensure that the focal point reaches optimum focus at the point from which the image will be viewed (the eyepiece or possibly a camera)
●Black metal construction
How to use it?
Step1.
Put the Collimation Eyepiece (Short Version) into the Tube
Step 2.
Make sure the blackspot is in the center of 2 lines of collimation eyepiece.congraluationsonyou.You have Collimated Your Telescope.
Step 3.
If it is not in the center，please adjust the screws,in this way.you wilL collimate sucessfully
Pros & Cons
Pros
- Aluminium CNC body with steel crosshairs for precision
- 1.25" standard size fits most Newtonians/SCTs
- Lightweight at 156g for easy handling
- Improves focus on stars and planets quickly
Cons
- Specific to reflectors, not refractors
- Manual alignment tool, no automation
- No eyepiece cap or case included
- Learning curve for first-time collimators
Common Questions
What material and size is the SVBONY Cheshire eyepiece?
Aluminium CNC body with steel crosshairs; 1.25 inches barrel, 141x41x32mm dimensions.
Which telescopes is this collimation eyepiece compatible with?
Fits Newtonian and SCT reflector telescopes for precise alignment.
How to use the SV197 for telescope collimation?
Insert into focuser, align crosshairs with primary/secondary mirrors for sharp star focus.
What is the weight and build quality?
Net weight 156g / 5.51oz; robust aluminium and steel construction.
Shipping origin for this accessory?
Mainland China; 10-20 days delivery for improved telescope viewing.
Product information last updated on April 27, 2026