- 190 mm Maksutov-Newtonian
- 1000 mm (f/5.3) n Fully multi-coated Pyrex mirrors
- 2” dual-speed 10:1 Crayford focuser
- 9x50 right angle correct image finderscope
- Black V-style dovetail plate
The exciting new Mak-Newtonian from Sky-Watcher is just what astrophotographers and serious visual observers have been looking for.
The Mak-Newtonian design provides large aperture apochromatic performance with exceptional field correction in a compact, affordable package. Compared to a similarly sized Schmidt-Newtonian, the Mak-Newtonian yields a sharper image with more contrast. Naturally, the Mak-Newtonian is an excellent visual performer, too.
Optical Info |
|
Optical Design |
Mak-Newtonian |
Mirror Coatings |
94% Aluminum |
Lens Coatings |
Fully Multi-Coated |
Glass Type |
BK7/Borosilicate |
Primary Aperture (mm) |
203 |
F/Ratio |
5.3 |
Focal Length (mm) |
1000 |
Secondary Diameter |
64mm |
Secondary Obstruction (by diameter) |
34% |
Secondary Obstruction by Area |
11% |
Observational Info |
|
Dawes Limit |
0.61 |
Rayleigh Limit |
0.74 |
Limiting Mag. |
13.9 |
Minimum Magnification |
27 |
Maximum Magnification |
374 |
Light Gathering (compared to next size down) |
11% |
General Info |
|
Focuser |
2" Dual Speed Crayford |
OTA Length (Retract/Ext.) |
37.5" |
OTA Outer Diameter |
9.5" |
OTA Weight (with accessories) |
29 |
Accessories |
|
Included Finder |
8x50 RACI |
Included Diagonal |
No |
Mounting Accessories |
Rings/V-Rail |
Included Eyepieces |
None |
Included Case |
No |
Corrector |
No |