{ "item_title" : "DIY Optical Devices for Beginners", "item_author" : [" Morgan Reid "], "item_description" : "Build real working optical devices-using affordable parts and simple, hands-on methods.DIY Optical Devices for Beginners gives you a clear, practical path to creating telescopes, microscopes, pinhole cameras, slide viewers, and more. With step-by-step instructions, intuitive explanations, and projects designed for small workspaces, you will learn exactly how light, lenses, and mirrors work-and how to turn them into functional instruments.Starting with the essentials of rays, focal length, magnification, and image formation, you'll move through progressively more advanced builds, including: - Galilean and Keplerian refractor telescopes- Basic Newtonian reflector concepts and alignment- Macro and compound microscopes using salvaged parts- Pinhole and vintage-style cameras with exposure fundamentals- Slide viewers, camera obscura projects, and DIY focusing racksYou will also learn how to measure focal length, test alignment, control stray light, choose lenses, salvage usable optics, and set up a safe, compact workspace. Each chapter includes real-world tips, troubleshooting steps, and upgrade paths so your builds continue to improve as your skills grow.If you enjoy practical science, tinkering, crafting, or hands-on learning, this book gives you everything you need to design, build, and explore your own optical creations.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/9/79/827/622/9798276226668_b.jpg", "price_data" : { "retail_price" : "19.99", "online_price" : "19.99", "our_price" : "19.99", "club_price" : "19.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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