SVBONY Cheshire Collimation Eyepiece 1.25'' for Newtonian, SCT Telescope,Astronomical Telescope Accessory SV197
You will be redirected to AliExpress to complete your purchase
Specifications
- Brand Name
- svbony
- High-concerned chemical
- None
- Type
- Monocular, Cheshire Collimating Eyepiece
- Barrel Size
- 1.25 inches (31.7 mm)
- Field of View
- others
- Model Number
- SV197
- Origin
- Mainland China
- 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
- Choice
- yes
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
- Precise aluminum and steel construction for accurate collimation
- 1.25" standard size fits most Newtonian/SCT telescopes
- Lightweight 156g easy to handle
- Improves star focus and planetary views
Cons
- Monocular design, not for visual observing
- Requires some astronomy knowledge for use
- No illuminated crosshairs
- Limited to reflectors only
Common Questions
What materials is the SVBONY Cheshire Collimation Eyepiece made from?
Aluminium CNC body with steel crosshairs for precision.
What size and weight details?
1.25 inches barrel, dimensions 141x41x32mm, net weight 156g.
Is it compatible with specific telescopes?
Fits Newtonian and SCT reflector telescopes.
How to use for collimation?
Cheshire eyepiece for quick alignment; insert into 1.25" focuser to align mirrors.
What are the shipping and field of view details?
Ships from Mainland China, field of view others, 156g lightweight.
Product information last updated on April 29, 2026