With an off-axis guider, perfect astrophotography is virtually in your grasp. Long exposure photos require precise tracking, which is the specialty of this guider, making it one of the necessary tools for astrophotography. You will soon have the most beautiful astronomy photos in the bag!. Exact micro-focusing with 10mm travel - for auto-guider or crosshair eyepiece: A small prism directs light into the control unit of your guider- into a 1.25-inch helical focuser. Now insert your auto-guider or a crosshair eyepiece. With the generous 10mm of travel allows you will find the optimum sharpness for your guide star. Impressive - this special helical focuser can be adjusted to 0.05mm using the super fine scale. So you can always find the precise focus point very quickly. The connections: Easy to adapt - the Astromania off-axis guider has an M48 thread on the telescope side and an additional socket for 2 inch eyepieces. The accessory has three screws and a flat M48 adapter for connecting your camera. The advantage - you can rotate your camera at any time and find the optimum orientation for the astronomical object you are exposing. The advantages: 1) lets you take beautiful astronomy photos with round stars. 2) for refractors, SCs, MAKs and RC telescopes. 3) off-axis guider only 24mm in overall length - very compact. 4) robust yet light. 5) 45mm optical transmission - full illumination, even with large chips. 6) micro-focusing - especially smooth helical focusing with 0.05mm accuracy. 7) 75mm of back focus. An off-axis guider is a brilliant invention. This device sits in the 2-inch focuser in front of the camera. A small prism directs a little light from the telescope into a separate tube - where your guide camera or crosshair eyepiece is attached. This makes it possible to instantly correcting any tracking errors during the extended period over which your camera is exposing the image - for perfectly round stars!.

Item Weight: 9.2 Ounces. Finderscope: Reflex. Focus Type: Auto Focus. Objective Lens Diameter: 45 Millimeters. Brand: Astromania. Manufacturer: Astromania. Date First Available: January 26, 2016. Is Discontinued By Manufacturer: No. Best Sellers Rank: #3,776 in Camera & Photo Products. Customer Reviews: 4.3 out of 5 stars 13 ratings 4.3 out of 5 stars. Item model number: SKU_AM_ZGHDO. : B01B2OR8QG. Item Weight: 9.2 ounces. Product Dimensions: 6.02 x 3.57 x 3.33 inches.