Author Topic: Glasses and eyepieces, the best thoughts and ways to combine both  (Read 360 times)

Danny Rodriguez

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Re: Glasses and eyepieces, the best thoughts and ways to combine both
« Reply #15 on: January 26, 2018, 04:13:54 AM »
Well the OP and myself are a very close match, I manage a year more, wear glasses (short sight) and have astigmatism.
At a viewing evening, with public, 5 days ago I tended to just just leave my glasses on and all was in effect fine. If I find myself bothered then I will happily remove the glasses - find it is often more comfortable anyway. Just remembering to put glasses somewhere safe and where I can easily find them is a greater problem.

Suspect that if it is more outreach then the glasses stay on more, easier then to point things out in the sky. If it is just me then I suspect they are on/off about 50/50.

Main eyepieces have something like 16mm of eye relief, maybe 18mm depending on what I read (Paradigms) so nothing special.

Suppose I am sort of pragmatic, in that if I need say 14-15mm of eye relief and have 16-18mm, why would I go looking for 20mm, and a new set of eyepieces to get 20mm.

togoseera

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Re: Glasses and eyepieces, the best thoughts and ways to combine both
« Reply #16 on: January 30, 2018, 11:55:15 PM »
did you ever try seeing how much more detail you can see using 2-3-4x readers, I know for terestial viewing its pretty cool

byhodete

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Re: Glasses and eyepieces, the best thoughts and ways to combine both
« Reply #17 on: January 31, 2018, 12:03:39 PM »
Thanks to everyone for the replies. I've never heard of the Dioptrx before, so I'll definitely look into that. I've read a good deal about the Baader Morpheus, and those are in strong consideration. As far as glasses go, I've though about having a set of lenses put into a flip up frame--kind of like those funky sunglass things. That way they're out of the way, but close when needed. One thing, though, is in cold weather glasses are a pain in the backside for a number of reasons.

Thanks again for the replies!

scenunhadef

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Re: Glasses and eyepieces, the best thoughts and ways to combine both
« Reply #18 on: February 02, 2018, 02:49:41 PM »
Quote
Thanks to everyone for the replies. I've never heard of the Dioptrx before, so I'll definitely look into that. I've read a good deal about the Baader Morpheus, and those are in strong consideration. As far as glasses go, I've though about having a set of lenses put into a flip up frame--kind of like those funky sunglass things. That way they're out of the way, but close when needed. One thing, though, is in cold weather glasses are a pain in the backside for a number of reasons.

Thanks again for the replies!

The combination of T'4's and Dioptrx is really fantastic BTW. It's like having your young eyes back!

ilinsubesch

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Re: Glasses and eyepieces, the best thoughts and ways to combine both
« Reply #19 on: February 08, 2018, 11:13:58 PM »
Quote
Thanks to everyone for the replies. I've never heard of the Dioptrx before, so I'll definitely look into that. I've read a good deal about the Baader Morpheus, and those are in strong consideration. As far as glasses go, I've though about having a set of lenses put into a flip up frame--kind of like those funky sunglass things. That way they're out of the way, but close when needed. One thing, though, is in cold weather glasses are a pain in the backside for a number of reasons.

Thanks again for the replies!

One solution that works for me in cold weather, and hot humid weather, is small lensed glasses.
Far less condensation on them.
Easily countered when it does form, be simply waving a hand near the glasses to move some air across them.

If observing with glasses on, then the recommendations for +/- 20mm of eye relief are very good.

Easiest lenses to keep crystal clear and clean when afield or out at night, are glass lenses.
For countering their weight, choose small glass lenses, in light weight frames.
These are not for any application where eye protection applies.
But work great for astronomy.

When observing with glasses on and off, consider a strap or cord on the glasses.
To hold them up on the forehead, or around the neck, but in either case right at hand.
A dedicated upper body pocket works too.
On a table nearby or on the scope ep/tripod tray was very poor placement, for me.

If up on the head, or dangling around the neck, it is necessary to be aware that they are there, and move accordingly.

Full time 20/20 astigmatism corrected and clear clean vision, is a great way to telescope.

Jimmy Harbaugh

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Re: Glasses and eyepieces, the best thoughts and ways to combine both
« Reply #20 on: February 09, 2018, 09:12:42 AM »
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I don't like to observe with glasses on because they're progressive, and with large eye lenses, they just don't work well. Most of my eyepieces accept the Dioptrx, and that works great for me.

I've observed happily with progressive multifocals for well over 20 years, without any issues whatsoever.

I stick to frames having smaller lenses, high index lenses (1.67), with good anti reflection coatings.

I also stick with eyepieces that suit my needs like Pentax XW's, Nagler T4's and TV Delos.

Glasses on for me is an infinitely better option than a dioptrix and having to take them off at the eyepiece, then put them back on to look at the sky, charts or Argo Navis.

Cheers
I have gone through at least four pairs of progressives. They have all worked fine for me at the eyepiece. The frames are relatively small, have high index lenses and good coatings. So apparently all those factors help.

I really don't understand the problems some observers have wearing progressives while observing through telescopes. I've never had a problem, except for eyepieces with very short eye relief, such as XO's and short focal length orthos. But no eyeglasses will work well with those eyepieces.

I've also tried Dioptrx. I've tried to like them, but I still prefer keeping the eyeglasses on instead.

The problem is that Dioptrx only corrects for astigmatism. But I have astigmatism, myopia and presbyopia. I don't like having to flip my eyeglasses off and on every time I want to look at the sky or read at the telescope.

In fact, I need the eyeglasses to read the screen on my iPhone or tablet when I'm using SkySafari Pro. Very often I need to compare the view through the eyepiece with the chart on SkySafari Pro. I need to do this for star hopping. I've located and observed hundreds of DSO keeping my eyeglasses on while looking back and forth between the eyepiece and SkySafari Pro. Dioptrx just doesn't cut it. My progressive eyeglasses do.

So for me it's easier to just keep the eyeglasses on and don't use Dioptrx.

Mike