Designation

Leica Extender 1.8 x

Leica Digiscoping lens 35 mm
Device type Spotting scope Spotting scope
Order no. 41 022 (black) 42 308 (black)
For use with Leica APO-Televid and Televid HD (angled) spotting scopes with Leica zoom eyepieces with Leica APO-Televid and Televid HD (angled) spotting scopes with Leica zoom eyepieces and Leica Extender 1.8x
Scope of delivery Bayonet cap and eyepiece cap Cordura lens case
Magnification 45 x – 90 x corresponding to eyepiece combination
Lens focal length — 34.5 (35 mm format)
Exit pupil  
Televid 65 1.5 mm (45 x) to 0.73 mm (90 x) —
Televid 82 1.8 mm (45 x) to 0.91 mm (90 x)  —
Close distance  
Televid 65 3.5 m depends on spotting scope
Televid 82 3.8 m depends on spotting scope
Field of view at 1,000 yds / m 64.8 yds (45 x) to 42 ft (90 x)21.6 m (45 x) to 14 m (90 x) —
Subjective angle of view 53° (45 x) to 65° (90 x) —
Eyepiece for eyeglass wearers yes —
Eyecup with twist-and-pull action yes —

Image size (mm x mm)

Image diagonal (mm)

 —

23.6 x 15.7

28.4 (APS-C, Leica T)
Largest scale — 1:2.4 1:1.3 (with Ext.)
Smallest diagonal of object — 72.2 mm
38.0 mm (with Ext.)
Smallest field of object — 60.1 x 40.0 mm
31.6 x 21.1 mm (with Ext.)
Watertightness to a depth of 16.5 ft / 5 m to a depth of 16.5 ft / 5 m
External diameter 2.3 in / 59.05 mm 2.7 in / 68 mm
Overall length 1.61 in, 0.91 in (without bayonet)41 mm, 23 mm (without bayonet) 2.6 in / 65 mm (without T2 adapter)
Weight 3.2 oz / 92 g 8.8 oz / 250 g
Technical Data

Eyepieces 25-50x and 20-60x, Extender and Digiscoping Lens - Technical data

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