Guest MacT Posted May 18, 2014 Share Posted May 18, 2014 Hi guys I got my celestron Skymaster 15x70s but I cant see thru them properly. As I said in an earlier post that I am a glasses wearer with the left eye almost blind. Therefore the shut one eye and focus on a distant object then change over eyes does not work with me but the of the image I can see with the right eye focuses in sharply but what I also see is a black ecipis like I can see the walls of the eyepiece with focused image in one small quadrent. Am I being total goof? Have I missed something simple? Regards Pam Link to comment Share on other sites More sharing options...
Tweedledee Posted May 18, 2014 Share Posted May 18, 2014 I'm not sure exactly what is happening, but have a couple of simple suggestions. Firstly let's assume that there is no collimation or other problem with the bins, which there shouldn't be since they are new. 1. Are you sure you have the interocular distance correct. That is, different people's eyes are set at slightly different distances apart. You can adjust this by hinging the two barrels to get them perfectly matched so the optical axis of each barrel exactly matches the optical axis of your eyes. 2. On the Skymasters, the right eyepiece can be independently focused. First you should put the right objective lens cap on so you can't see an image from the right barrel and focus your left eye using the central focuser. Once you are satisfied with the focus in your left eye, take the lens cap off and only turn the right eyepiece until your right eye focuses as well. Give it a go and report back. Hope this helps. Link to comment Share on other sites More sharing options...
Daz Type-R Posted May 18, 2014 Share Posted May 18, 2014 Doubt that's going to work Pete as Pam says she is almost blind in her left eye. Sorry Pam but I have nothing further to add, that's a new one one on me..... Link to comment Share on other sites More sharing options...
Brantuk Posted May 19, 2014 Share Posted May 19, 2014 If you are almost blind in one eye I would suggest you are ideally suited to telescope observing with an eye piece - but unsuited to using binoculars or binoviewers. Maybe a monocular with a bit of magnification would be useful for hand held, light weight grab and go type observing. Hth Link to comment Share on other sites More sharing options...
Guest peepshow Posted May 19, 2014 Share Posted May 19, 2014 Why not just use one section of the binoculars with your good eye and ignore thw other section? Use them like a telescope. Link to comment Share on other sites More sharing options...
Guest MacT Posted May 19, 2014 Share Posted May 19, 2014 HI Guys, An update- My son called round last night to help me use the bins. He found the bins perfect but try as I may I could not overcome the problems and so have come the conclusion that my particular sight problems rules out bins. To say I am disappointed is an under statement but I'm not ready to admit defeat. I need to regroup and attend a future meet to see if using a telescope is possible. Meanwhile what magnification of monocular would you guys be reckoned to do the job? Just going now to play with bins to see if using just one side works like a telescope as Richard suggested! Thanks for the posts regards Pam Link to comment Share on other sites More sharing options...
Al.Grant Posted May 19, 2014 Share Posted May 19, 2014 My wife has similar problem with one eye and finds it best to just leave the lens cover on for the one she can't see out of properly. Seems to work for her ... but that's not to say it would work for others. Link to comment Share on other sites More sharing options...
Brantuk Posted May 19, 2014 Share Posted May 19, 2014 I've no experience with monoculars - but here's a few that look interesting on paper: http://www.scopesnskies.com/prod/bands/sprite/10x50monocular.html (Bak-4 and FMC are good - similar to binocs specs) http://www.celestron.com/browse-shop/sport-optics/monoculars And this discussion on CN might be interesting for you: http://www.cloudynights.com/ubbthreads/showflat.php/Number/4380384 Link to comment Share on other sites More sharing options...
Guest MacT Posted May 19, 2014 Share Posted May 19, 2014 Woohoo Guys great news I can see thru my new bins!!! Bear with me while I try to explain. Excuse my lack of scientific discription! I was wondering why I could see thru my Practica Sport fold up bins to watch the garden birds and not the 10x70s then realised the low mag in the Practicas did nothing to help/aid my practically blind eye but the higher mag in the 10x70 did but only enhanced light and I was seeing double images merging but obviously could not focus in the blind eye so permament double images. So I had a brain wave nipped down to local chemist, bought an eye patch and hey presto I can see thru my brilliant bins!! I am so chuffed and my Philip's Stargazing with Binoculars arrived to day so I'm all set. Thank you for all your help. Regards Pam Link to comment Share on other sites More sharing options...
Guest MacT Posted May 19, 2014 Share Posted May 19, 2014 Just a footnote I did try having the lens capped and using just one side like a telescope as suggested but for some reason nothing worked until I covered my eye completely Regards Pam Link to comment Share on other sites More sharing options...
stash Posted May 19, 2014 Share Posted May 19, 2014 Pam Just a footnote I did try having the lens capped and using just one side like a telescope as suggested but for some reason nothing worked until I covered my eye completely Regards Pam Pam , If covering one eye works then try a eye patch ( i do) and keep both eye's open - might be worth a try. I am sure I read somewhere that closing one eye distorts the other eye Link to comment Share on other sites More sharing options...
Tweedledee Posted May 19, 2014 Share Posted May 19, 2014 Glad you got it sorted Pam. Link to comment Share on other sites More sharing options...
Brantuk Posted May 20, 2014 Share Posted May 20, 2014 Glad you're happy you found a solution Pam. Link to comment Share on other sites More sharing options...
Guest Tweedledum Posted May 20, 2014 Share Posted May 20, 2014 Glad you are now ok Pam. If you have not already done so download a planetarium program, plenty out there but try Stellarium its great and will help guide you round the sky. To be found here :--- http://www.stellarium.org/ Link to comment Share on other sites More sharing options...
Guest MacT Posted May 23, 2014 Share Posted May 23, 2014 Thanks guys. Thanks Damian I have downloaded Stellarium and am trying to find my way around it. Its giving me something to do as the skies have been cloud covered since I got my bins! lol Link to comment Share on other sites More sharing options...
Teslar Posted May 24, 2014 Share Posted May 24, 2014 Would a spotting scope not be a better idea. Just as light and portable mounted on a camera tripod. I'm sure the bird watchers here could better advise!! Link to comment Share on other sites More sharing options...
Guest MacT Posted May 24, 2014 Share Posted May 24, 2014 Thanks for the idea Tom but I have the bins working for me great now so all my spare cash is going into the telescope fund! Link to comment Share on other sites More sharing options...
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