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iOptron 8401 GoToNova Controller with 130,000 Celestial Object Database - Page 7 Questions & Answers
Serial numbers to year
Sorry, my ESP is switched off.
If you give no details of the optical equipment, how do you expect anyone to be able to answer ?
7/6/2019 2:27:14 PM •
Optics
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Answered
on Jul 06, 2019
What year is this serial number 514442913?
On what equipment ?
If it is a bicycle, 1973
If it is a motor mower or washing machine, 1982
If it is a camcorder or fishing reel, either 1997 or 2008, or some date in between.
6/25/2019 7:49:10 PM •
Optics
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Answered
on Jun 25, 2019
I just bought a Royal Navy spyglass and cannot focus it---help please
Wow ! At last, a sensible query - thank you. I have no knowledge of this equipment, but from what I can gather, it is what is known as a 'Drawtube' telescope - i.e. comprising two or more tubes which slide in and out (in the traditional 'telescope' fashion) - with me so far ? Good. The eyepiece is at the narrower end, and the 'object glass' (the bit you point towards the item you wish to see) is at the other. To focus this kind of telescope, pull all the tubes out to their fullest extent. Then, holding the instrument in both hands, put your eye to the eyepiece, and point it at the subject. It should be visible, but probably blurry. Now gently push the section with the eyepiece into the next tube, and eventually you should obtain focus. Resting the scope on a firm object will help to support it.
6/2/2019 5:35:00 PM •
Optics
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Answered
on Jun 02, 2019
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