Description

 

Cyck52-220ED Guide Scope Guiding Telescope for Sky-Watcher 150mm 200mm SKY ROVER Telescopes

Attention:
- There are some small flaws in appearance, small dust on the lens, etc. (will not affect the use effect and does not need to be cleaned) because it is assembled manually. Please make sure that you don't mind before purchasing. Thank you!
- The eyepiece or camera will move while focusing.

Features:
- It supports SLR focusing
- More excellent internal extinction
- Multi-functional: It can be used as a guide scope, a straight finderscope, a 45-degree erecting finderscope (requiring a Sirius 1.25-inch 45-degree erecting lens), an ordinary small telescope and a camera lens
- Strong rigidity: Tube rings are fixed by M6 screws made of 304 stainless steel. There is a large contact area with the telescope tube and it is extremely stable to use. 0.7 mm hard plastic sleeve can increase the contact area and avoid the small deformation caused by aluminum screw protection rubber head. With thread focuser and simple structure, there is no shaking after locking the rings
- Good optics: 52 mm diameter ED lens is used, and the effective diameter can reach about 50.2 mm as standard. Multi-layer broadband coating is used. The cylinder of the lens is all painted black, and some chromatic aberration is retained in the aberration design, which controls the spherical aberration to a good level, because the chromatic aberration has little effect on the clarity of the imaging
- Perfect optical axis: The optical axis of the system will be tested before delivery. This can at least ensure that at the level of the second image, Airy disk can be verified with a high magnification

Specifications:
- Aperture: 52mm
- Focal length: 220mm
- Spherical aberration and chromatic aberration are better than those of ordinary glass models. With higher sharpness, finer star spots, and a wider imaging range (chromatic aberration in focus is very small, and chromatic aberration will increase sharply if it is out of focus)
- Weight: 660g (with tube rings, 6 stainless steel screws and metal objective cover)

Package Included:
- 1 x Set of Guide Scope

The imaging difference between the general consumption model and the ED model:


As you can see from the pictures above, the image of ED glass version is clearer and sharper.

Star point performance of the ED version guide scope: Please add an infrared filter to the camera.