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Manu72

23 Noi 2016 20:49



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In comentariile din linkul postat de tine am gasit asta (sublinierile imi apartin):

"Terry59    
Top 500 contributor
from Colorado
Age:55-65
Level of experience in astronomy:Advanced
Owned this product for:Over 1 year
Mechanical Quality 4 / 5
Usability 5 / 5
Fit 2 / 5
Value 3 / 5
I have found this to provide a perfect flat field @ 55mm of spacing with my SW120ED. It is a good alternative to the 0.85x reducers and works with any 2" focuser.
I have also found it to perform poorly with my Orion 80ED regardless of spacing used, thus my 2 rating on the fit.
Orion help us out and provide this kind of useful information!
Pros: superb with the 120ed, inexpensive compared to alternatives, works with any 2" focuser
Cons: does not work with the 80ed"

Deduc ca acest reducator nu se descurca cu focala scurta a refractorului tau (560mm) dar se comporta admirabil cu cei 900mm focala ai lui SW120ED

Solutia ar fi  sa cauti un fr/ff care sa fie proiectat pentru refractoare cu focala de 560mm

Edit: adica ceva de genul
http://www.teleskop-express.de/shop/product_info.php/info/p5239_TS-Optics-PHOTOLINE-2--0-8x-reducer---flattener-for-70mm-to-80mm-ED-Refractors.html