The Celestron StarSense Autoguider is an all-in-one solution that makes using your telescope easier and more rewarding than ever. This powerful, compact device connects to your Celestron mount to provide automatic and accurate autoguiding to help you create sharp, long-exposure images with ease. Whether you're an experienced astroimager or just starting in the hobby, adding this game-changing accessory will ensure you have more quality time under the stars.Automatic Alignment: Be Ready to Observe in MinutesStarSense Autoguider aligns your telescope to the night sky in about three minutes with the press of a button-no user input is needed. Celestron's patented StarSense technology ""sees"" star patterns overhead and matches them to its internal database to automatically orient the telescope. This feature eliminates the hassle of manually aligning your telescope, so you can focus on what's important-observing and imaging.Precise GoTo: Supercharge Your Pointing AccuracyCelestron's computerized mounts are already hailed for their pointing accuracy, but your mount gets even better when you add the StarSense Autoguider. Instead of placing celestial objects within the telescope's field of view, Precise GoTo places them in the center of the field-even if you're using a high-powered eyepiece or today's small imaging sensors.Autoguiding: Create Your Celestial MasterpieceCapturing images of astronomical objects is one of the most exciting things you can do with your telescope. But to capture stunning deep-sky astroimages, you need autoguiding-the power to make tiny adjustments to the mount's tracking to keep your target locked in over long exposures. Previous autoguiding setups were complex and expensive, usually involving a separate autoguiding camera, a guidescope, and a computer. StarSense Autoguider replaces all that-so even beginners can dive head-first into the world of imaging. Your targets are crisp and detailed, while background stars look like sharp pinpoints, never oblong or streaky. Assisted Polar Alignment: Dial in the Best Alignment PossibleMany users find that adding StarSense Autoguider to their setup improves accuracy so dramatically that they no longer need to polar align their German equatorial mounts for most casual observing and imaging. But if you want to achieve the best accuracy possible, the autoguider dramatically simplifies the polar alignment process. Simply follow the on-screen instructions on the hand control or in the Cpwi software, and you can complete a full polar alignment in less than five minutes.High-quality 4-element Optical DesignThe StarSense Autoguider features a high-quality 4-element optical design devised by the famed optical designer Mark Ackermann. It's unique design delivers sharper images than other mini-guidescopes, this helps provide the most precise autoguiding performance. The optical tube is threaded to accept 2"" astronomical filters. Add an Ir-pass filter to align your mount in twilight or a neutral density filter for daytime focusing.The device also includes an onboard computer and a highly sensitive Sony IMX462-dll monochrome Cmos image sensor all working together to provide exceptional guiding accuracy. You can view a live image from the camera via your Pc if desired.new! All StarSense Autoguider units now ship with a custom dew shield. In heavy dew conditions, the shield helps prevent dew from forming on the exterior of the objective lens.