Feedback for Aspheric 203mm F/6 from observatoire de Rocbaron ( france )
May 18th, 2009









Time: November 21,2008
Location:Yinna Mountain,Meizhou, GuangDong, China
Photographer: Wei Huang
Refractor:Intane Triplet 80mm F7 APO Refractor with Vixen 0.67x field reducer
Mount: Vixen Sphinx SXW
Camera: Canon 450D Baader IR Filter Modified, Cooling Modified
Guide: Mizar GT68(D=68mm,f=600mm)+ Vixen GA4+ Mizar Or6
Exposure: ISO800 composite of 16X8min ,4X2min,4X12sw
Processing: Deepskystacker, Photoshop CS
Weather : Clearness, Transparency fine.
Naked eye limiting magnitude: 6
Most first-time telescope users know little or nothing about the night sky, and you certainly do not need a course in astronomy to enjoy your telescope to the fullest. Begin with the objects easiest to find: the Moon, Jupiter, Saturn, Venus, Mars.
All of these are bright objects even in the midst of a big-city environment and can be located by using star maps in popular monthly magazines such as Astronomy or Sky & Telescope. For more advanced celestial listings, use Meade Star Charts or Meade Epoch 2000sk sky software. With only a little study, you will quickly be star-hopping from one object to another.
Some types of objects (e.g., nebulae and galaxies) are best observed in a dark-sky environment, although even many of these are clearly observable through small telescopes in the city. The Moon and planets, by contrast, can be studied about equally well from the city or country. The basic rule is that while observations made outside the city generally reveal more detail, particularly in deep space, there are still a great many objects within the grasp of a small telescope in urban areas.
Location:Shenzhen Convention & Exhibition Center, China
Time:September 6-9,2008 Four days
Exhibition Time:September 6-9 9:00 AM - 5:00 PM
Exhibition NO.: 9439#
Exhibition Products:
Time: At 22:00 July 23,2008
Location: Hui Dong, GuangDong, China
Photographer: Wei Huang
Refractor:Intane Triplet 80mm F7 APO Refractor with Borg 0.85x field reducer
Mount: Vixen Sphinx SXW
Camera: Canon 350D Baader IR Filter Modified, AWB,RAW
Guide: Mizar GT68(D=68mm,f=600mm)+ Vixen GA4+ Mizar Or6
Exposure: ISO1600 composite of 16*180s
Dark frames:11 frames
Processing: Aligned in Maxim DL, processed in Photoshop(Level and gamma adjust, curve adjust )
Weather : Clearness, Transparency fine.
Naked eye limiting magnitude: 6