Product Name:Achromatic 203mm F/6
Item No.: AL007
Description:
In Stock ( Prompt delivery can be made after receiving payment )
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Clear Aperture
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203 mm
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Focal Length
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1218 mm
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Material
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Optical crown and flint glasses
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Structure
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Air-spaced doublet
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Color Correction
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Achromatic
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Surface Quality
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(not worse) 60-40 scratch & dig
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Surface Accuracy
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(not worse) λ/2 P-V at 632.8nm
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Coating
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Multilayer broadband Anti-reflection Coating
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Weight:
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3.95kg
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Mr. luciano who is an dedicated amateur astronomer DIY his own 40X203 big binocular with Intane Achromatic 203mm F/6
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/2281373/page/5/view/collapsed/sb/5/o/all/fpart/1
More detailed Picture
Feedback form David Simons who is form Santa Rosa, CA :
Hello Alice ,
Good to hear from you again.
Yes I have enjoyed the big achromat for viewing many large dim objects that other scopes do not show as well. Here is one of the setups I am using.
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Size:
Achromatic 80mm F/6.25
Achromatic 150mm F/8
Achromatic 180mm F/6
Achromatic 203mm F/9
Achromatic 220mm F/12
Individual and wholesale orders are welcome.
Note: special size and coating are available upon request.
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