- added Opteka .45x High Definition Wide Angle Lens which is the same thread as my sigma lens ( 70.0-300.0 mm f/4.0-5.6) but not meant for it
Exposure:0.002 sec (1/500)
Aperture: f/11.0
Focal Length: 102 mm
ISO Speed: 250
Askar Launches N210: A 210mm f/3.4 Newtonian Telescope
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Askar has added a much larger telescope to its N-series of Newtonian
astrographs. They have launched the new Askar N210. It follows the smaller
N160...
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