SKU: 93640058201

Full Aperture Trial Lens Set (chrome/nickel rims)

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Description

Full Aperture Trial Lens Set (chrome/nickel rims)Full Aperture Trial Lens Set 267 full aperture pieces in a plastic tray with a lockable aluminum frame carrying case. This trial lens set consists of: Plus (+) minus ( ) sperical lenses (one pair of each) ranging from 0. 25 to 20 diopters. Plus (+) minus ( ) cylindrical lenses (one pair of each) ranging from 0. 25 to 6 diopters prisms and accessories. The power of the lens is marked on both sides of the handle. The spherical lenses are mounted in a

Full Aperture Trial Lens Set 267 full aperture pieces in a plastic tray with a lockable aluminum frame carrying case.

This trial lens set consists of:  Plus (+)/minus (-) sperical lenses (one pair of each) ranging from 0.25 to 20 diopters.  Plus (+)/minus (-) cylindrical lenses (one pair of each) ranging from 0.25 to 6 diopters prisms and accessories. The power of the lens is marked on both sides of the handle. The spherical lenses are mounted in a chromic rim, while the cylindrical lenses, prisms and accessory lenses are mounted in nickel rims. The diameter of each lens is a standard 38mm. The tray can be taken out of the case and placed into a drawer.

Spherical Lenses: (plus [+]/minus [-], one pair of each) 0.25 – 6 diopters in 0.25 diopter steps (24 lenses)    6.50 – 10 diopters in 0.50 diopter steps (8 lenses)    11 – 14 diopters in 1 diopter steps (4 lenses) 16, 18 and 20 diopters (3 lenses)

Cylindrical Lenses: (plus [+]/minus [-], one pair of each) 0.25 – 4 diopters in 0.25 diopter steps (16 lenses)    4.50 – 6 diopters in 0.50 diopter steps (4 lenses)

Prismatic Lenses: 0.5, 1, 2, 3 and 4 prism diopters (1 pair of each)     5, 6, 8 and 10 prism diopters

In addition there are 2 plus (+15 D) and 2 minus (-15 D) lenses, an additional 1.0 mm slit lens, frosted lens, 0.5 D Jackson crossed cylinder.

Accessories: Green filter lens, red filter lens, clear plano lens, clear plano lens with cross, slit lens (1.5 mm), pinhole plate lens (1.0 mm), pinhole plate lens (1.5 mm), black occluder lens, clear Maddox lens, Jackson crossed cylinder (0.25 D), lens cleaning cloth (28 x 48 CM), plastic tray in aluminum case with 2 combination locks. Tray can be taken out of the briefcase and placed in a drawer. All lenses have a metal rim with the power marked on both sides of the handle. The diameter of each lens is a standard 38 mm.

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SKU: 93640058201

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Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 4
This book is great to share with friends and an excellent conversation starter ...
Format: Paperback
A quick but thoughtful read. This book is great to share with friends and an excellent conversation starter without being exactly political, in the negative sense of the word. Inspires constructive conversation regardless of your background.
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Reviewed in the United States on February 18, 2017
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CG
Carnegie, US
★★★★★ 5
Best book on the subject
Format: Paperback
Short yet concise argument for ending wars.
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Reviewed in the United States on August 31, 2022
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harel charnis
Louisville, US
★★★★★ 5
A must learn
Format: Paperback
Too important to be forgitten
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Reviewed in the United States on July 14, 2019
J
John Matlock
Dallas, US
★★★★★ 5
It's How Wars End That Become Important Afterward
Format: Paperback
The twentiety century taught us a lot about wars and how they end. World War I showed us that making strong demands on the defeated (who didn't admit defeat to their own people) set the stage for the next big war. World War II was fought until the Unconditional Surrender of the Germans and Japanese. Something that thinkers still debate as having made them fight all that harder. VietNam was fought with no clear end in sight, and "another VietNam" entered our language. The first Gulf War was ended when Colin Powell and Bush II debated how to end the war. They stopped before they had to go in and see what the Sunni's, Shiite's and Kurds made of the power vacuum left by the removal of Saddam would have created. Bush II is learning about this now. This is the second revised edition of this book, originally published in 1971 and then updated in 1991 and now 2005 to reflect happenings in new wars. Still some of the old wars had interesting insights that I didn't know before, such as how Finland, originally on Germany's side against Russia, made a peace with Russia and kicked the Germans out before they became a Russian province. Great Book.
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Reviewed in the United States on April 6, 2005
C
César González Rouco
Port Orchard, US
★★★★★ 3
Complementary readings
Format: Paperback
There are already three good reviews so I will only suggest reading the following books instead of, or in addition to, this peculiar work: a) "War in human civilization" by Azar Gat; b) "War before Civilization. The Myth of the Peaceful Savage", by Lawrence Keeley; c) "How War Began" by Keith F. Otterbein; d) "War and Peace and War: The Rise and Fall of Empires" by Peter Turchin; and e) "War and the Law of Nations: A General History" by Stephen Neff.
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Reviewed in the United States on August 8, 2009

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