Hi all
I just found a pair of binoculars in a box that I have had for several years, they are Jenax 10×50. Has anybody ever heard of them before? Hopefully they will be ok i will try them out as soon as there is a clear night.
Yes a few photos , the writing on the end , the front objective lenses the eyepiece end , that kind of thing will help plenty , but most of all take them out and try them on any brighter star cluster or the moon later on tonight and report back .
Brian.
10 x 50 is a good size for astro. More important that they have a flat feild of view ie don't distort the stars near the edge of the views and have clean and clear optics.
My old 12 x 50 Zeniths have an excellent flat feild and beat my much newer Olympus 10 x 50 bins for astro. Daylight viewing is not a good test IMHO, astro work definitely pushes them if you are critical about it.
Try them and see what they can do, nothing to lose, they were 'free'..
Yes a few photos , the writing on the end , the front objective lenses the eyepiece end , that kind of thing will help plenty , but most of all take them out and try them on any brighter star cluster or the moon later on tonight and report back .
