Model: 203/1420 CNC-LW II M. Wirth Version
The 203mm f/7 Apo is our new large imaging machine. Soon a matched field flattener for up to 6x7cm film format will follow. Optical again did a superlative job in designing this large color free Apo, even given the challenge of its very fast speed. LZOS did a stunning job implementing this lens within these design parameters. The image quality and color correction of this new fast model are so exceptional that you can utilize similar visual magnification as with our famous f/9 model. We recently had a wonderful first light experience with this new model. Mars was pushed up to 500x with great sharpness and contrast. The Veil Nebula was viewed with great detail under moderately light polluted sky without any nebula filter, all thanks to the great contrast. The tube rings are flat on both sides and offer five tapped 1/4-20 inch holes perpendicular to the tube line with one centered. The middle two hole's center to center spacing is 60mm (2.362") and outer two hole's spacing is 3.2" (Astro-Physics standard) This Matthias Wirth model is even lighter in weight than our CNC-LW II model. The decrease in weight was made from the focuser side, and results in a very front heavy tube. It is, however, an exceptionally transportable 8" f/7 Apo.


• Optical tube
• 3.5" Starlight focuser
• Set CNC tube rings
• 2" Extension 80 mm long
• 2"/1.25" adapter
• 50mm finder bracket

Technical Datas:
• Tube outside diameter 206 mm = 8.11 inch
• Dew shield outside diameter 272 mm = 10.71 inch
• Weight - Optical tube, 3.5" focuser, finder bracket, tube rings : 23.00 kg = 50.60 lbs
• shortest length for transportation : dew shield retracted, with focuser racked fully in: 1,220 mm = 48.03 inch
• Observing length with extendet dew shield : 1,450 mm = 57,09 inch
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