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RF4 RF-55P-B52 6.5-55X Synchronous Zoom Trinocular Stereo Microscope, RF-55P-B52Specification: 1. Magnification: Continuous zoom 6. 5X to 55X 2. Head: 45 degree inclined 360 degree swiveling trinocular 3. Eyepiece: WF10X 22MM 4. Objective: 0. 65 5. 5X 5. Zoom Knob: Metal knob 7 gear zoom 6. Camera Connector: 0. 48PRO CTV (Monitor and eyepiece Synchronous zoom) 7. Accessories: 144 light dustproof lens Limit lock Leak proof eye cup Support Parameters: 1. Column Aperture: 32mm 2. Lens Aperture: 76mm 3. Center Distance: 155mm 4.
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Best in 7 days
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Best in 7 days
4.8 ★★★★★
Based on 2104 reviews
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Product Reviews
★★★★★ 5
Well written and thought-out approach to change DoD acquisition
Format: Hardcover
I'm a Navy acquisition manager and former Navy officer. I very strongly recommend this book as required reading for Pentagon (especially flag officers and SESs), congressional staffs, defense contractors and those who would be defense contractors, Silicon Valley companies, and everyone who cares about the future of the United States. The author expertly characterizes the current world situation and the issues with DoD acquisition practices. He is not brutal about it, but fair. He explains the background and history behind how we got to where we are, and identifies a path forward. I believe that following the approach recommended is very hard, but very worth while. The author worked for Senator McCain for almost ten years, and it is clear that this book benefits from his experience.
My only gripe (and it is a minor one) is that very occasionally the author allows his feelings about Trump to manifest in a negative way. This is often justified, but it shouldn't be so one-sided. Nevertheless, this book is must-read, and deserves five stars.
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Reviewed in the United States on January 2, 2021
★★★★★ 4
Very Educational
Format: Paperback
I enjoyed the book. I wish the average American would take more of an interest in these kinds of issues facing the U S in the China sea region of the world.
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Reviewed in the United States on February 7, 2024
★★★★★ 5
The Future Efficiency of Killing
Format: Hardcover
A sobering review of how to efficiently kill one another.
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Reviewed in the United States on October 21, 2025
★★★★★ 5
Must have for Officers
Format: Paperback
Very informative and easy to understand.
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Reviewed in the United States on January 14, 2026
★★★★★ 5
Should be mandatory reading for police academies and be in every cops' patrol bag
This book should be mandatory reading for police academies and be in every cops' patrol bag for quick reference. I am a police officer (8+ years) and stay on top of search and seizure case law as much as possible. This book is easy to read and gets the essential information on everything that has to do with police search and seizure. The topics are easy to find, and all are no more than 1-2 pages. Every sections cites the appropriate case law and offers tips for articulating PC for that type of incident.
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Reviewed in the United States on February 12, 2018
