nika-of-novgorod
nika-of-novgorod
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i can help you answer (c) by using an online telescope calculator: http://www.stargazing.net/naa/scopemath.htm type in 400mm under OBJECTIVE DIAMETER in mm type in 10 under f-RATIO then try an eyepiece of 20mm focal length and VOILÁ.... …
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i can help you answer (c) by using an online telescope calculator: http://www.stargazing.net/naa/scopemath.htm type in 400mm under OBJECTIVE DIAMETER in mm type in 10 under f-RATIO then try an eyepiece of 20mm focal length and VOILÁ.... …
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i can help you answer (c) by using an online telescope calculator: http://www.stargazing.net/naa/scopemath.htm type in 400mm under OBJECTIVE DIAMETER in mm type in 10 under f-RATIO then try an eyepiece of 20mm focal length and VOILÁ.... …
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i can help you answer (c) by using an online telescope calculator: http://www.stargazing.net/naa/scopemath.htm type in 400mm under OBJECTIVE DIAMETER in mm type in 10 under f-RATIO then try an eyepiece of 20mm focal length and VOILÁ.... …
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i can help you answer (c) by using an online telescope calculator: http://www.stargazing.net/naa/scopemath.htm type in 400mm under OBJECTIVE DIAMETER in mm type in 10 under f-RATIO then try an eyepiece of 20mm focal length and VOILÁ.... …