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    Nina Simone - I Put A Spell On You 1968 ...

    Nina Simone - I Put A Spell On You 1968


    https://www.youtube.com/watch?v=W7mBQhfkqHs
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    Written a full 20 years before full backside...

    Written a full 20 years before full backside progressives (base curve front surface, progressive optics/multifocal back surface) from Rodenstock/Multigresiv and Zeiss/Individual became available to...
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    True for segmented multifocals, but not for most...

    True for segmented multifocals, but not for most PALs. Darry's definition is spot on- I don't see how it can be improved on.

    Yup, it's been about 20 years since I've seen a backside Ultex (B?)....
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    The back side (concave), using the definition...

    The back side (concave), using the definition below.


    https://www.optiboard.com/forums/showthread.php/1959-Base-Curves?p=13572&viewfull=1#post13572

    More useful data from Darryl Meister in that...
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    The Camber blank will have less center thickness...

    The Camber blank will have less center thickness (reduced magnification) and a thinner profile compared to spherical blanks for hyperopic presbyopes, especially when the total power (distance + add)...
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    Loudon Wainwright - Red Guitar 2008 ...

    Loudon Wainwright - Red Guitar 2008


    https://www.youtube.com/watch?v=sNdvH92UM6g


    https://www.youtube.com/watch?v=eiKBGViXdwI
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    Melanie - Ruby Tuesday 1977 Goodbye 2019,...

    Melanie - Ruby Tuesday 1977

    Goodbye 2019, hello 2020.


    https://www.youtube.com/watch?v=vH8SVGoJzvE
  8. We'll rarely need lenticulation at this age...

    We'll rarely need lenticulation at this age because of the small eye size. Semi-finished Trivex should be considered for the best safety and low chromatic aberration. The -3.00 cyl kicks it out of...
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    Fairport Convention - Time Will Show The Wiser...

    Fairport Convention - Time Will Show The Wiser 1968


    https://www.youtube.com/watch?v=vPTI4m6KcJQ
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    Holiday Impressions

    'Twas the Night Before Christmas

    https://www.optiboard.com/forums/showthread.php/56720-Twas-the-night-before-Christmas

    Follow-up with a twist 2019

    ...
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    Jethro Tull - Songs From The Wood 1977 Best...

    Jethro Tull - Songs From The Wood 1977

    Best enjoyed after an Outlander episode.


    https://www.youtube.com/watch?v=wtxhodUlccw
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    George Harrison - Devil's Radio 1991 ...

    George Harrison - Devil's Radio 1991


    https://www.youtube.com/watch?v=4dtPHNYz5KI
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    My last invoice from Eschenbach was for a...

    My last invoice from Eschenbach was for a hand-held 3x mag (made in Germany) no tariff.

    The optional stand is made in China and carried a 9.34% tariff surcharge (section 301).

    I have adjusted...
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    Properly fabricated (shape, size, thickness,...

    Properly fabricated (shape, size, thickness, etc.), low chemical environment, no high heat, proper cleaning/very good care...four to five years on average for the best coatings.

    Absolutely. Like...
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    Like them both. Dig this. ...

    Like them both. Dig this.

    https://www.optiboard.com/forums/showthread.php/40333-Old-Tunes-on-Youtube?p=461363&viewfull=1#post461363

    May be of interest:
    ...
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    Persol PO2803 ...

    Persol PO2803

    https://glassesradar.com/frank-sheeran-robert-de-niro-glasses-the-irishman

    Bit of an odd product placement considering that De Niro's character was a sociopath.

    ...
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    Some of these articles are quite technical. ...

    Some of these articles are quite technical.

    https://app.mafo-optics.com/en/profiles/ac6fdce54d5e/editions

    Hope this helps,

    Robert Martellaro
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    Crosby, Stills & Nash - Teach Your Children...

    Crosby, Stills & Nash - Teach Your Children 1977-82?


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

    https://www.azlyrics.com/lyrics/crosbystillsnashyoung/teachyourchildren.html
  19. This may help. ...

    This may help.

    https://www.2020mag.com/ce/design-a-better-visual-experience

    From the above,



    implying that only low levels, probably no more than 1.50∆ of localized prism can be...
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    A 24 hour turnaround from seeing wonderfully, to...

    A 24 hour turnaround from seeing wonderfully, to blur and double vision makes me think of three possibilities:

    1) The eyeglasses have become mispositioned due to some mishap.
    2) An acute...
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    Dan Hicks and His Hot Licks - Where's the Money...

    Dan Hicks and His Hot Licks - Where's the Money 1989


    https://www.youtube.com/watch?v=4UBPUEXQj9c

    https://www.youtube.com/watch?v=HUgwDLNTix0
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    Welcome to OB. Mispositioning will result in...

    Welcome to OB.

    Mispositioning will result in oblique astigmatism and power error off-axis, similar to using an incorrect base curve, with the error dependent on the degree of mispositioning, lens...
  23. I wasted double that!

    I wasted double that!
  24. Replies
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    Paul Simon - American Tune 1975 ...

    Paul Simon - American Tune 1975


    https://www.youtube.com/watch?v=AE3kKUEY5WU
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    Joe Cocker - Let's Go Get Stoned 1969 ...

    Joe Cocker - Let's Go Get Stoned 1969


    https://www.youtube.com/watch?v=BPKyB3T2IwM
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