{"product_id":"gs100-guide-scope","title":"GS100 PAPO Guide Scope","description":"\u003cdiv style=\"width: 100%; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; color: #4a5568; line-height: 1.7;\" class=\"product-description\"\u003e\n\u003cdiv style=\"text-align: center; margin-bottom: 60px; padding-top: 20px;\"\u003e\n\u003ch2 style=\"font-size: 2.2em; font-weight: bold; margin-bottom: 20px; color: #1a202c; letter-spacing: -0.5px;\"\u003eGS-100AR\/AC High-Precision Guide Scope\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.1em; max-width: 900px; margin: 0 auto 30px; color: #4a5568;\"\u003eThe GS-100AR\/AC is a compact yet powerful high-precision guide scope engineered for astrophotographers who demand portability, optical precision, and system flexibility. Featuring an upgraded 4-element PAPO apochromatic optical design, precision CNC-machined aluminum construction, and dual focuser options, the GS-100 is built for guiding, entry-level wide-field deep-sky photography, and visual observation.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,0.06);\" alt=\"GS-100AR\/AC High-Precision Guide Scope\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS100_Guide_Scope.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 60px; background: linear-gradient(145deg, #f7fafc, #edf2f7); padding: 40px; border-radius: 16px; border: 1px solid #e2e8f0; box-shadow: 0 4px 15px rgba(0,0,0,0.03);\"\u003e\n\u003ch3 style=\"font-size: 1.6em; font-weight: 600; color: #2d3748; text-align: center; margin-top: 0; margin-bottom: 30px; letter-spacing: 0.5px;\"\u003e6 Advantages\u003c\/h3\u003e\n\u003cul style=\"font-size: 1.05em; margin-bottom: 35px; color: #2d3748; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003e4-Element PAPO Optical Design:\u003c\/strong\u003e ED Low-Dispersion Glass for Pure, Sharp Stars\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003e1-Inch Flat Field Imaging:\u003c\/strong\u003e 100mm Focal Length · 25mm Aperture · f\/4 Fast Focal Ratio\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eAdvanced Anti-Reflection Coating:\u003c\/strong\u003e Broadband Multi-Coating for Higher Contrast \u0026amp; Better SNR\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eLightweight CNC Aluminum Construction:\u003c\/strong\u003e Portable Strength Without Compromise\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eDual Focuser Options:\u003c\/strong\u003e AR (Rack and Pinion) \/ AC (Crayford)\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eMulti-Scenario Expansion:\u003c\/strong\u003e Guiding, Deep-Sky, Visual Observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 10px;\" alt=\"6 Advantages\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS100_Guide_Scope_Advantages.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 60px; background: #ffffff; border: 1px solid #edf2f7; padding: 40px; border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.04);\"\u003e\n\u003ch3 style=\"font-size: 1.5em; font-weight: 600; margin-top: 0; margin-bottom: 20px; color: #1a202c; border-left: 4px solid #3182ce; padding-left: 15px;\"\u003e4-Element PAPO Optical Design with Built-in Field Flattener\u003c\/h3\u003e\n\u003cp\u003eThe GS-100AR\/AC features an upgraded 4-element, 2-group self-flattening PAPO (Planar Apochromatic) optical design, incorporating a premium ED low-dispersion glass element for superior chromatic correction. Compared with earlier GS series guide scopes, the optimized optical structure significantly reduces purple fringing around bright stars, delivering cleaner and more accurate stellar profiles.\u003c\/p\u003e\n\u003cp\u003eWith a well-corrected 1-inch flat image circle, the GS-100 produces:\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 30px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003ePinpoint stars across the field\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eExcellent edge-to-edge sharpness\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eFlat-field imaging performance\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eUniform illumination and natural star color\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"4-Element PAPO Optical Design\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS100_Guide_Scope_4-Element_PAPO_Optical_Design.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 60px; background: #ffffff; border: 1px solid #edf2f7; padding: 40px; border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.04);\"\u003e\n\u003ch3 style=\"font-size: 1.5em; font-weight: 600; margin-top: 0; margin-bottom: 20px; color: #1a202c; border-left: 4px solid #3182ce; padding-left: 15px;\"\u003eAdvanced Multi-Layer Anti-Reflection Coating\u003c\/h3\u003e\n\u003cp\u003eEvery optical surface in the GS series is treated with multi-layer broadband anti-reflection coatings to maximize light transmission and suppress internal reflections.\u003c\/p\u003e\n\u003cp\u003eAdditional stray-light suppression features include:\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 20px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eBlackened lens edges\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003ePrecision-machined internal anti-reflection threading\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eMulti-stage internal light baffling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese combined light-control measures dramatically reduce scattered light interference, resulting in:\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 30px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eBrighter guide stars\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eImproved image contrast\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eCleaner stellar definition\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eExcellent guiding sensitivity and signal-to-noise performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"Multi-Layer Anti-Reflection Coating\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS100_Guide_Scope_Multi-Layer_Anti-Reflection_Coating.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 60px; background: #ffffff; border: 1px solid #edf2f7; padding: 40px; border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.04);\"\u003e\n\u003ch3 style=\"font-size: 1.5em; font-weight: 600; margin-top: 0; margin-bottom: 20px; color: #1a202c; border-left: 4px solid #3182ce; padding-left: 15px;\"\u003ePrecision CNC Aluminum Construction\u003c\/h3\u003e\n\u003cp\u003eThe GS-100AC\/AR adopts a newly optimized raised single-ring lightweight mounting design, balancing structural rigidity with reduced overall weight. The elevated ring design also helps prevent interference with surrounding equipment during installation, improving compatibility across diverse astrophotography setups.\u003c\/p\u003e\n\u003cp\u003eBuilt from CNC-machined aluminum alloy, the GS-100 offers:\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 20px; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eExcellent structural strength\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eLightweight portability\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003ePrecision mechanical stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-bottom: 30px;\"\u003eThe anodized finish provides enhanced resistance to wear and corrosion, while the fine matte-textured surface improves grip and handling in cold or humid outdoor environments.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"CNC Aluminum Construction\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS100_Guide_Scope_CNC_Aluminum_Construction.jpg?v=1780537786\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 60px; background: #ffffff; border: 1px solid #edf2f7; padding: 40px; border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.04);\"\u003e\n\u003ch3 style=\"font-size: 1.5em; font-weight: 600; margin-top: 0; margin-bottom: 20px; color: #1a202c; border-left: 4px solid #3182ce; padding-left: 15px;\"\u003eDual Precision Focuser Options\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 30px;\"\u003eThe GS-100 is available in two precision focusing configurations to suit different imaging preferences.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background: #f8fafc; padding: 20px; border-radius: 12px; border: 1px solid #f1f5f9;\"\u003e\n\u003cstrong style=\"display: block; color: #2b6cb0; margin-bottom: 8px; font-size: 1.1em;\"\u003eGS-100AC — Crayford Focuser\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 0.95em;\"\u003eSmooth, backlash-free focusing for intuitive manual adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background: #f8fafc; padding: 20px; border-radius: 12px; border: 1px solid #f1f5f9;\"\u003e\n\u003cstrong style=\"display: block; color: #2b6cb0; margin-bottom: 8px; font-size: 1.1em;\"\u003eGS-100AR — Rack-and-Pinion Focuser\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 0.95em;\"\u003eMechanical geared focusing for highly repeatable fine-focus precision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center; font-style: italic; margin-bottom: 30px; color: #718096;\"\u003eBoth systems are engineered for fast, accurate focusing during guiding and imaging sessions.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"Dual Precision Focuser Options\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS100_Guide_Scope_Dual_Precision_Focuser_Options.jpg?v=1780537786\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 60px;\"\u003e\n\u003cdiv style=\"text-align: center; margin-bottom: 40px;\"\u003e\n\u003ch3 style=\"font-size: 1.6em; font-weight: 600; color: #1a202c; margin-bottom: 15px; letter-spacing: -0.3px;\"\u003eVersatile Expansion for Multiple Astrophotography Applications\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.05em; max-width: 850px; margin: 0 auto; color: #4a5568;\"\u003eThe GS-100 is designed as a flexible optical accessory that adapts to a wide range of astronomy equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: linear-gradient(145deg, #f8fafc, #edf2f7); border: 1px solid #e2e8f0; padding: 40px; border-radius: 24px; box-shadow: 0 4px 25px rgba(0,0,0,0.02);\"\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #edf2f7; padding: 30px; border-radius: 14px; margin-bottom: 30px; box-shadow: 0 2px 12px rgba(0,0,0,0.01);\"\u003e\n\u003ch4 style=\"font-size: 1.25em; margin-top: 0; margin-bottom: 12px; color: #2b6cb0; font-weight: 600;\"\u003eGS-100 + Guide \/ Planetary Camera\u003c\/h4\u003e\n\u003cp style=\"margin-bottom: 18px; font-size: 0.95em;\"\u003eGS-100 is compatible with 1-inch and smaller guide or planetary cameras, making it ideal for precision autoguiding applications.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"Guide or Planetary Camera Setup\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100_Guide_or_Planetary_Camera.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #edf2f7; padding: 30px; border-radius: 14px; margin-bottom: 30px; box-shadow: 0 2px 12px rgba(0,0,0,0.01);\"\u003e\n\u003ch4 style=\"font-size: 1.25em; margin-top: 0; margin-bottom: 12px; color: #2b6cb0; font-weight: 600;\"\u003eGS-100AR + DSO Cooled Camera + Electric Focuser\u003c\/h4\u003e\n\u003cp style=\"margin-bottom: 18px; font-size: 0.95em;\"\u003eThe rear focuser features a 1.25-inch internal diameter and M42 x 0.75 external thread. This enables direct connection to mainstream cooled astronomy cameras and seamless integration with the ToupTek Astro AAF for autofocus. For optimal performance, pairing with sensors up to 1 inch is recommended.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"DSO Cooled Camera Setup\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100AR_DSO_Cooled_Camera_Electric_Focuser.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #edf2f7; padding: 30px; border-radius: 14px; margin-bottom: 30px; box-shadow: 0 2px 12px rgba(0,0,0,0.01);\"\u003e\n\u003ch4 style=\"font-size: 1.25em; margin-top: 0; margin-bottom: 12px; color: #2b6cb0; font-weight: 600;\"\u003eGS-100 + AE676C Multi-Purpose Astronomy Camera\u003c\/h4\u003e\n\u003cp style=\"margin-bottom: 18px; font-size: 0.95em;\"\u003eUsing an M42 adapter, the GS-100 can be paired with the AE676C all-in-one astronomy camera to create a lightweight, beginner-friendly wide-field deep-sky imaging system. This setup is ideal for portable astrophotography, travel imaging, and entry-level deep-sky imaging.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"AE676C Setup\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100_AE676C_Multi-Purpose_Astronomy_Camera.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #edf2f7; padding: 30px; border-radius: 14px; margin-bottom: 30px; box-shadow: 0 2px 12px rgba(0,0,0,0.01);\"\u003e\n\u003ch4 style=\"font-size: 1.25em; margin-top: 0; margin-bottom: 12px; color: #2b6cb0; font-weight: 600;\"\u003eGS-100 + Filter \/ Filter Wheel\u003c\/h4\u003e\n\u003cp style=\"margin-bottom: 18px; font-size: 0.95em;\"\u003eThe front of the GS-100 features a standard M48 × 0.75 thread, allowing direct attachment of 2-inch filters for monochrome or color imaging. For multi-filter workflows, filter drawers and filter wheels can be mounted directly using an M54-to-M48 adapter. For visible-light imaging or guiding, using an IR-CUT filter or cameras with infrared-blocking protective glass is recommended for optimal image quality.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"Filter or Filter Wheel Setup\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100_Filter_or_Filter_Wheel.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #edf2f7; padding: 30px; border-radius: 14px; margin-bottom: 0; box-shadow: 0 2px 12px rgba(0,0,0,0.01);\"\u003e\n\u003ch4 style=\"font-size: 1.25em; margin-top: 0; margin-bottom: 12px; color: #2b6cb0; font-weight: 600;\"\u003eFlexible Mounting Interfaces\u003c\/h4\u003e\n\u003cp style=\"margin-bottom: 18px; font-size: 0.95em;\"\u003eThe included mini dovetail base features multiple M6 threaded mounting points and one 3\/8\"-16 tripod thread. This enables fast and secure mounting to tripods, Vixen-style dovetail systems and custom astrophotography rigs.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto; border-radius: 8px;\" alt=\"Flexible Mounting Interfaces\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100_Flexible_Mounting_Interfaces.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"margin-bottom: 60px;\"\u003e\n\u003ch3 style=\"font-size: 1.6em; font-weight: 600; color: #1a202c; text-align: center; margin-bottom: 15px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"width: 60px; height: 3px; background-color: #e2e8f0; margin: 0 auto 30px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto;\" alt=\"Specifications\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100_Guide_Scope_Specifications.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 60px;\"\u003e\n\u003ch3 style=\"font-size: 1.6em; font-weight: 600; color: #1a202c; text-align: center; margin-bottom: 15px;\"\u003eMechanical Dimensions\u003c\/h3\u003e\n\u003cdiv style=\"width: 60px; height: 3px; background-color: #e2e8f0; margin: 0 auto 30px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto;\" alt=\"Mechanical Dimensions\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100_Guide_Scope_Mechanical_Dimensions.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003ch3 style=\"font-size: 1.6em; font-weight: 600; color: #1a202c; text-align: center; margin-bottom: 15px;\"\u003eWhat’s In the Box\u003c\/h3\u003e\n\u003cdiv style=\"width: 60px; height: 3px; background-color: #e2e8f0; margin: 0 auto 30px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cimg style=\"width: 100%; max-width: 100%; height: auto; display: block; margin: 0 auto;\" alt=\"What's In the Box\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/ToupTek_GS-100_Guide_Scope_What_s_In_the_Box.jpg?v=1780537785\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ToupTek Astro","offers":[{"title":"GS100-AC","offer_id":52468440072504,"sku":null,"price":179.0,"currency_code":"USD","in_stock":true},{"title":"GS100-AR","offer_id":52468440105272,"sku":null,"price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/GS100_4.jpg?v=1780556521","url":"https:\/\/www.touptekastro.com\/ja-eu\/products\/gs100-guide-scope","provider":"ToupTek Astro","version":"1.0","type":"link"}