Site Content

 The All new Starfield Optics ED80 APO doublet telescope package packs a punch!
This telescope system can be used for visual applications and imaging.  The complete package includes a 20mm wide angle eyepiece, 50mm right angle finder scope, 2" diagonal, and a soft case with die cut foam to keep it all together for storage and transportation.   Along with heavy duty rings, a vixen style dovetail bar, and rack and pinion 2 speed focuser this telescope is build for users of all levels.
For photographic use this telescopes offer two possible focal lengths.  At f/7 you get the full focal length of  560mm, and if the Starfield 0.8x reducer is added the new focal length of 448mm is achieved bring the focal ration down to f/5.6.  
Features

• 80mm ED Glass Doublet
• 560 mm Focal Length f/7
• Excellent for Visual observation or imaging when used with Starfield reducers or flatteners
• Retractable Dew Shield
• Heavy Duty Rings and V Style dovetail
• 2" 2 Speed RP focuser
• 50mm Guide RA illuminated finder scope
• 2" Diagonal, 20mm WA Eyepiece and soft Carry case

Aperture:  80 mm

Focal length:  540 mm

Focal ratio:  f/7

Lens design:  2 element lens (ED doublet), air-spaced

Tube material:  Aluminum - CNC machined

Tube weight:  3.10 kg

Tube length:  460 mm

Tube diameter: 89 mm

Outer diameter dew shield:  103.6 mm

Focuser:  ball bearing mounted 2" rack and pinion focuser

Connection eyepiece side:  1.25", 2" and female M63x1 thread

Back focus:  123 mm from 2" receptacle / 161 mm from M63 thread