Eyeglasses and outreach...
Posted 04 September 2013 - 09:32 AM
Being an eyeglass wearer, I can well recall occasions in my early observing career where too-close familiarity with a "bare" ocular left marks on my spectacles. Thus, I take pains to assure that a similar fate does not befall my guest's eyewear.
In the time that I've been sharing views through my telescope with the public, one thing that I've always tried to do has been to use either an eyepiece with an integral eyeguard or one with an aftermarket eyecup attached. This greatly reduces the chance of any mishaps, and is one less thing to worry about during an event or an informal gathering. It's very easy for someone not acquainted with the specifics of a telescope's focuser to misjudge the distance between themselves and said focuser, especially in the dark; I'm sure that we've all seen our share of people inadvertantly striking the eyepiece when going in for a look. If a flexible eye guard isn't present when this occurs, eyeglass wearers might possibly damage either their eyeglasses, the eyepiece or both.
So, next time you invite the public to take a peek at the heavens through your instrument, please consider the eyeglass wearer if you aren't already doing so; it can help make the occasion a more pleasant one for all concerned.
Posted 04 September 2013 - 02:56 PM
Posted 07 September 2013 - 10:26 PM
Posted 08 September 2013 - 01:18 AM
Also use only ep's at out reach that have rubber tops, so no ones' glasses get scratched.
Mostly ones with long eye relief too.
I also encourage all guests at the scope to focus the image for their sharpest view.
Because it turns out peoples vision varies all over the place.
Young folks have generous visual accommodation, but often older folks do not.
Some peoples eyeglass prescriptions are not as up to par as they think they are either.
I was a few years into outreach before I became aware that not all my guests were getting their best in focus image possible.
After I started encouraging them to adjust the focus, the experience for many became better. More than I had realized.
Posted 08 September 2013 - 09:56 AM
Example the view in a cheap 32mm 2" Galileo is quite good and EASILY seen by myself with glasses on;almost as good the 25mm astroscopic.40mm 1.25" plossls are good too. Use a barlow to boost the magnification if needed.
But try to put my old glasses up to a 9mm plossl and the view is terribly vignetted and frustrating.Glasses off is fine but requires a large adjustment.
Make as certain as possible the public actually do see the objects and are not just being polite.And going away disappointed.
Posted 08 September 2013 - 05:09 PM
Posted 08 September 2013 - 07:57 PM
Posted 09 September 2013 - 04:33 PM
Posted 09 September 2013 - 04:48 PM
All of this is just one reason why I prefer to slap on my Mallincam and be done with it. I've actually never had anyone complain or say that it's like looking at pictures on the Internet. Because it's not.