PT
Specifications:

Aperature                                             8" / 200mm
Focal lenth                              22.36 inch / 568mm
Focal ratio                                                     F/2.84
Mirrors                                        > 93% reflectivity
Mirror optics                                1/12 wave optics
Corrector                           4 element multi-coated
Focuser                     10:1 dual speed 50mm travel
Weight (OTA)                                 16.7 lbs /7.6 kg
                                Carbon model  13.6 lbs/6.2 kg
Length (OTA)                            27.55 inch / 70 cm
Optical tube                    Rolled steel enamel finish
Carbon model                   Twill woven carbon fiber
Finderscope            8x50 crosshaired with bracket
Tube rings                          Steel, hinged, felt-lined
                                                       1 year warranty
                                            (Extended 3 year warranty
                                              is available  at order time)
So...How much faster is it:

2.8-8 ED           F/4 scope           F/5.6 scope             F/8 scope
20 min.             40 min.              1 H 20 min.             2 H 40 min.
40 min.             1 H 20 min.        2 H 40 min.             5 H 20 min.
1 H 20 min.       2 H 40 min.       5 H 20 min.            10 H 40 min.
2 H 40 min.       5 H 20 min.       10 H 40 min.          21 H 20 min.
Should we say more???... Yes! Look at these details... deep in the Trifid, dark nebulous detail is crystal crisp - down to one pixel wide!
Spaces