Outstanding value....Our tests on both real and artificial stars revealed a near-perfect diffraction pattern....The Sky-Watcher's mount was a touch heavier & beefier....The larger 2" diagonal - unique in this test - will be invaluable if you are planning to use wide-field eyepieces....The extra eyepiece, bigger finderscope & star diagonal will lead you to the great value Sky-Watcher....You get more for your money with the Sky-Watcher. That's why it beats the Celestron....
BBC SKY AT NIGHT MAGAZINE
Sky-Watcher EVOSTAR telescopes are classic two-element, air-spaced, achromatic refractors. They are outstanding, high-performance, high-resolution instruments manufactured to high standards of optical and mechanical precision. With their long focal lengths and breathtaking, diffraction limited optical performance, they are ideal for the detailed high-power study of the Moon, Planetary Surfaces and other objects in our solar system, giving crisp contrasty images. Supplied with the EQ5 equatorial mount, which when polar aligned, will allow you to easily track objects as they move across the night sky via its slow motion controls.
- Magnifications (with eyepieces supplied): x40 & x100
- Highest Practical Power (Potential): x240
- Objective Lens Diameter: 120mm
- Telescope Focal Length: 1000mm (f/8.33)
- Eyepieces Supplied (1.25"): 10mm & 25mm
- Direct SLR Camera Connection
- 9x50 Finderscope
- Dual-Fit 1.25"/2" Focuser
- 2"/50.8mm Star Diagonal
- Multi-Coated Objective Lens
- EQ5 Deluxe Heavy-Duty Equatorial Mount
- Built-in Polar Alignment Scope Holder
- Polar Scope (as shown) not included but available separately
- 1.5" Stainless Steel Pipe Tripod with Accessory Tray
- 38% more Light Gathering than 102mm
AIR-SPACED TWO-ELEMENT ACHROMATIC REFRACTORSAn ordinary single lens brings different wavelengths of light to different focal points 
All Sky-Watcher Refractors are built with air-spaced two-element lenses, which reduce chromatic aberration more than standard doublet lenses. 
