Even better performance for astro-photography and visual use can be achieved when used in combination with Sky-Watchers Newtonian coma corrector (Prod.Code 20233)
Magnifications (with eyepieces supplied) x53.5
Highest Practical Power (Potential) x610
Diameter of Primary Mirror 305mm
Telescope Focal Length 1500mm (f/4.9)
Eyepieces Supplied 28mm LET (2"/50.8mm)
Parabolic Primary Mirror
2" (50.8mm) Dual-Speed 10:1 Crayford Focuser
0.5mm Ultra-Thin Secondary Mirror Supports
Supplied with Tube Rings and Losmandy type dovetail bar
44% more Light-Gathering than 250mm
Compared to our own 250mm f/5 Newtonian reflector, the extra light gathered by the Explorer-300P was obvious. We got impressive views of a wide range of celestial objects. Galaxies such as M65 & M66 in Leo were wonderful, with strong hints of subtle detail along their spiral discs. The nearby galaxy NGC 3628 also stood out well. Nebulae shone against the background sky. M1, the Crab Nebula, showed varying degrees of mottling and scalloped edges very satisfying indeed. The Orion Nebula, M42-43, was awash with nebulosity and we found we could easily get lost amongst the detail.. At its centre, the Trapezium group of stars sparkled and, at the highest magnifications , we spotted several of its fainter mag. +10 stars, even though the atmosphere wasnt as steady as we would have liked for such high-magnification views. Detail Explosion: Late into the night we selected the globular cluster M13 from the hand-controller. As it swung into the field of view it was breathtaking, with swarms of stars looking like bees around a honey pot. The view was so good that we noticed a dark feature, commonly known as the Propeller, superimposed on one side of the cluster. It was easily the best view of the cluster weve ever had
.For crystal clear views of deep space, this is hard to beat!
BBC Sky At Night Magazine (Review of Explorer-300P single-speed version with same mirror set)
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