![]() ![]() This particular objective is supplied with a clip adapter, to attach the lens set to the phone (see below). epoxy glue ( two components fast cure - 10 minutes ).welder helmet dark glass (shade #14) - Cut the rectangular glass in two square parts.8x magnification lens set for mobile (tele).Use a rigid aluminum case (epoxy will not hold to a rubber case) It is a 8X magnification objective ( no, I'm not associated with the lens manufacturer in any way). To remedy that I bought one of those little phone lenses. The small field angle is important for precise pointing of the instrument. ![]() Marine sextant eyepieces are more like tele objectives. This is not so good for a sextant viewfinder. The original phone camera has wide field angle. You don't need any adaption to the phone to use CamSextant app. Failing to use the proper filter may result in damage to your eye and to your phone camera. You do need the proper filter to observe the Sun.It just feels more like a real sextant image with the eyepiece. You don't need the eyepiece thing described below to use CamSextant app.So - if you want to practice celestial navigation - get yourself a marine sextant. In a rocking boat, the gyro response is even worse. While the phone gyro is a nice piece of equipment, it is not nearly as precise as a marine sextant.It is available on the Apple App Store ( links in the end of this text ) Instead of a separate eyepiece, I used the phone camera as a pointer device for observations.Īn special app - also called CamSextant - was developed to work with it, capturing altitude readings. ![]() ![]() The device described here, named CamSextant, is also an iphone sextant and is even easier to build. That device combined a telescope viewfinder with the phone and uses the phone gyro to read the altitudes. Recently I published the iphone Sextant project ( iSextant ). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |