Binocular Ruby

I got BOB OPTIC 10.30*60 binoculars for star gazing.Are these suitable or should I buy others?

I have been star gazing for 15 years and have been using a 10*50 kamakura ruby quoted binoculars.
However I no longer find these satisfactory and this may be age related-I am 65.

Budget zoom binoculars are generally best avoided as they invariably suffer from significant optical defects. Things do improve when you move up into the hundreds of dollars territory but even then I would suggest they are best avoided. If they are going to be used hand held you won't want to go much above 10x anyway so you have the problems of zoom without any upside.

In what way are your current binoculars unsatisfactory? Age shouldn't really have anything to do with it. Your pupils may not dilate as much as they once did but even if the exit pupil is larger than your pupil that would only mean a certain amount of light loss. It is possible that they have been knocked out of collimation - there are simple tests you can do to check this - search online for details. If that is the case then a new pair is probably the way to go but there is nothing wrong with 10x50s for astronomy - it is actually one of the more popular sizes.




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