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Basics of Photography: Fundamental Concepts Everyone Should Know
What is focal length, shutter speed, aperture, depth of field, ISO, white balance, RAW, and JPEG — simple explanations of important concepts
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Aperture, aperture, maximum relative aperture - in simple words about the main thing
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A set of five best lenses for Nikon full-frame mirrorless cameras
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A simple and inexpensive solution with a large memory capacity that will breathe new life into old computer equipment.
Types, bases and markings of car lamps
Understanding the principles of marking car bulbs
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A bike lock is a simple and effective mechanism for protecting your bike from theft.
How to Choose the Right Cable for Your Smartphone, Tablet, and Laptop
Connectors, power, bandwidth and other criteria for choosing a cable for gadgets

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How E-Catalog works
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