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Allman Brothers - Every Hungry Woman 1970


https://www.youtube.com/watch?v=MHXC644k0iM

Low res excerpt from 16mm film and 16 track audio.

About 9 months before Fillmore East.

Atlanta...

The near point blur is due to power, position, or both. Strongly recommend standard corridors for task glasses, confirm that add power is not too strong, verify that the distance PD was used for the...

The +1.50 is the old add? Distance the same? Might just be that the wearer became used to a longer work distance at near and the stronger add is blurring that distance.

I saw a lot of folks with...

I observed no difference on the two people I tested under unfiltered summer sun (43˚ latitude), brown polarized, AR coated sunglasses, with a very good light seal, and clear AR coated eyeglasses.

Fun, if you enjoy "jerking away in the sand". See Robin Williams explaination of the game below (language).

https://www.youtube.com/watch?v=14NQIq4SrmY&t=104s

Postmodern Jukebox - Barbie Girl 2015


https://www.youtube.com/watch?v=4ReSV3CCRzg

Your welcome.

Yes.
Titrating the prism might be the only solution if they won't allow a more appropriate frame size/shape/lens design.

Hope this helps,

Robert Martellaro

Base in prism should cause slanting down to the right and left. It takes about 5 to 10 days for the brain to remap the image, with adaptation occurring almost overnight.

Fitting closer reduces...

https://www.youtube.com/watch?v=FuXpD3xDwvU

Freddie King - Ain't No Sunshine 1973


https://www.youtube.com/watch?v=2uVhgeTUQRo

Remove your solar glasses (ISO 12312-2) so that the corona becomes visible. Do not look at the event during totality with the solar glasses or filters in place- you will see nothing.
...

https://www.youtube.com/watch?v=Cczqpb421So

Fox reports the United Nations building is leaning to the right, MSNBC to the left.

Previously posted. https://www.optiboard.com/forums/showthread.php/40333-Old-Tunes-on-Youtube?p=566323&viewfull=1#post566323

Big Skynard fan though, especially when Steve Gaines joined the group....

Trombone Shorty - St. James Infirmary 2012


https://www.youtube.com/watch?v=FSbP6ZhfPs0

Barefoot Jerry - You Can't Get Off With Your Shoes On 1975


https://www.youtube.com/watch?v=3ICsXSjU17E

Scroll down to "Puzzle" and the differences between virtual and real images.

https://www.eophtha.com/posts/fun-with-prisms-in-ophthalmology

Muddy Waters - Can't Get No Grindin' 1973

Guitars- Hollywood Fats (age19), Bob Margolin, Calvin "Fuzz" Jones
Drums- Willie 'Big Eyes' Smith
Keys- Pinetop Perkins
Mississippi Sax- Mojo...

https://www.youtube.com/watch?v=9hNIX7V21pU

Looks like the B&L I have. Yes, it rotates, that's how you find the degree of astigmatism, if any, and the axis. I remember one that had a drum that was hard to turn- lubrication fixed it, but I...

Neighborhood Picnic Band - Shine On You Crazy Diamond 2019


https://www.youtube.com/watch?v=Xoq7LrfqKk8

https://www.youtube.com/watch?v=cXT8JgdvCHc

By means of prismatic spectacles, the visual field can be reversed or distorted (e.g., switching top and bottom, or left and right). Visuomotor skills recovered to near-baseline levels after long...

John Prine - Hello in There 1978?


https://www.youtube.com/watch?v=5-zYNPdT1a4

A friend in the radio biz in the mid-70's made a cassette mix-tape with many powerful songs that were new to me,...

Prentice Pro 9000,

Corrected curve theory/best form breaks down over plus eight or nine diopters, where only aspheric/atoric surfaces are capable of reducing marginal astigmatism. So yes,...

There you go. Maybe irregular astigmatism, probably higher order aberrations (coma etc.), becoming more noticeable with the stronger add. You could try a different PAL design, but ultimately...