Manual object tracking in camcorders/cameras with high optical zoom
Posted originally on 03/20/14
If the camcorder that is used have an eyepiece viewfinder that is one of the best options. Now if the camcorder used only have that little screen viewfinder on one side, that is really of not much use in a clear day under the sun when tracking an small object in the sky.
There are several options available to improve that situation:
1- You can use the standard video or HDMI output from the camcorder and connect a small monitor to it, that will give you a better view
of the camcorder FOV, if you place that monitor inside of an enclosure with its walls painted black that will improve even more contrast.
2- Using the video output with the camcorder you can connect that to a small video eyepieceviewfinder that you can build out of an old
camcorder like in here: http://www.youtube.com/watch?v=pV3mwfUbcVM, or buy one from ebay like this one:http://www.ebay.com/…/Personal-Video-Viewer-52…/160995670139. Even if your camcorder have an eyepiece viewfinderthis option is still good for that because it allow you to have a certain distance from your camcorder sometimes having your eye glued to your camcorder is not very comfortable and may limit the freedom of movement from the camcorder.
3- You can attach a small finder scope to your camcorder, like it is done in a telescope, like this one on Ebay: http://www.ebay.com/…/Meade-5x24mm-5x24-crossh…/231182971986, then align the camcorder FOV and the finder scope view and center them, that way any object placed in the finder scope center will be in your camcorder field of view, you can record it then with confidence.