Astromania Off-Axis Guider with Micro-Focusing - for Successful Astronomy Photos Without A Guide Scope - Bundle with - Telescope Eyepiece 25mm Plossl 1.25 Inch
Premium Optical Device: Aluminum alloy material is used to make it last longer; perfect for broad-field lunar observations; medium-sized star clusters and a wide range of cloudy nebulae; obtaining better observation results during astronomical journey
50 Degree Field of View: 1.25 inch 25 mm plossl eyepiece set offers a wider 50 degree field of view and a 25 mm focal length for observing larger objects; giving the wider view field along with extra sharpness and long eye relief
Fully Muti-Coated Optical Lens: 4-Element Optical Lens; providing bright; sharp images and excellent color correction and the fully coated groups on each lens surface maximize light transmission; contrast; and image clarity
This device sits in 2 inch focuser in front of camera; small prism direct little light from telescope into separate tube where guide camera or crosshair eyepiece is attached; correct tracking errors which camera is exposing image for perfectly round star
For refractors scs maks and rc telescopes; off-axis guider only 24mm in overall length; robust yet light 5.45mm optical transmission full illumination; micro focusing especially smooth helical focusing with 0.05mm accuracy; 75mm of back focus