The focal length of the 80mm 480mm and the 65mm is 386mm. To assist in getting on target, a 1.8X optical finder is provided. The series is equipped with a retractable hood to protect the objective lens from direct exposure to sunlight or dew. Ocular and objective lens dustcaps are included. All that's needed are an 841PA, 844AR and the T-system to fit a particular camera.
All optics are multi-coated and eyepieces have a quick attachment system.
In Swift Instruments 70th Anniversary year they are introducing seven new astronomical telescopes. This outstanding new line includes five refractors ranging from 50 to 90mm. There are four equatorial and three altazimuth mounts in this group. The most unusual among these is the new 868 solid brass, achromatic refracting telescope. Diameter of the objective lens is 80mm and focal length is 910 mm.