20mm 100 Degree FOV Eyepiece EX 

The huge 100° field of view offered by the 20mm XWA eyepieces together with excellent contrast will leave you more than impressed after first light. The excellent engineering and fully multi-coated lens surfaces are suggestive of eyepieces costing £100's more. Indeed a 21mm 100 degree eyepiece from a certain well known manufacturer would cost you over £600! Other features of the eyepiece are low chromatic aberration and excellent contrast. The lens edges and internal spacers are fully blackened allowing flaring and ghosting on high-contrast objects to be eliminated. The new Tecnosky XWA eyepieces are parfocal.

We feel this 20mm Eyepiece is well suited to viewing nebula as its huge field of view and high contrast allow large objects to be seen in detail yet viewed in context with their suroundings.

Specification

20mm Focal Length

Barrel Size 2" 

Field of View 100° Apparent

Number of elements 9

Eye Relief 15mm

Weight 860g

Field Stop 37 mm 

Length 152mm

Diameter 74mm