2" 0.95× Coma Corrector
Category： Correctors/Reducers/Flatteners
Sharpstar 2" 0.95× coma corrector can be applied to most marketable Newtonian reflective astrographs.
leave a message now >Product introduction
Sharpstar 2" 0.95× coma corrector can be applied to most marketable Newtonian reflective astrographs.
It’s of high quality and easy to use. Sharpstar 2" 0.95× coma corrector is designed for APS-C imaging circles(28mm), suitable for Newtonian reflectors with focal ratio between f/3 and f/6, and aperture size from 150mm to 600mm.
The reduction factor is 0.95×, thus it can reduce the original f/4, f/5 and f/6 respectively to f/3.8, f/4.75 and f/5.7, effectively shortening the exposure time. Besides, it can improve the star shapes. The diameter of stars in the center of the field can be limited within 10um.
Specifications
|
Specification |
||
|
Application |
150-600mm, f/3-3/6 parabolic reflectors |
|
|
Reduction factor |
0.95× |
|
|
Image circle |
44mm(maximum), 28mm(optimal) |
|
|
Lens |
triplet structure |
|
|
Outer diameter |
50.8mm(2") |
|
|
Back focus |
56mm(starting from the field-stop-ring to the focal plane) |
|
|
Length |
79.7mm |
|
|
Coating |
full-surface multi-layer coatings |
|
|
Weight |
0.22kg |
|
Video
Images
2" 0.95× Coma Corrector
2" 0.95× Coma Corrector
Download
上一条： 2" 1× Coma Corrector
下一条： 没有了！
RELATED PRODUCTS
Contact us
WANT TO SEE THE DISTANT STARS?
Contact Us Now!
3rd Floor, Building 5, Science and Technology Innovation Center, No. 1369, Chengnan Road, Nanhu District, Jiaxing, Zhejiang
