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LE eyepieces

A range of versatile eyepieces
Description

The LE range of eyepieces are the most versatile eyepieces at Takahashi. They cover a very wide focal length range, from 5 mm for planetary observation to 50 mm for deep sky observation on instruments with a long native focal length. The range is particularly suitable for telescopes with focal ratios between 7 and 10. The LE40mm and LE50mm models are rather intended for Takahashi Dall-Kirkham telescopes, such as Mewlons, especially those equipped with the CRS field corrector (Mewlon-250CRS and Mewlon-300CRS). Indeed, these 2 eyepieces have been optimised in order to offer a flat image even at the edge of the field when associated with this corrector.

LE eyepieces have an apparent field of view of 52° and their optical design consists of 5 lenses divided into 3 groups.

The LE5mm and LE7.5mm models have the particularity of having a removable 31.75mm barrel, offering a possible assembly to the old Japanese 24.5mm diameter. Models LE40mm and LE50mm have a 50.8 mm barrel.

Characteristics
Main characteristics
Item number TATKA00520
Focal length 5 mm
Apparent field of view 52 degrees
Eye relief 10 mm
Barrel 1.25" (31.75 mm) or 0.965" (24.5 mm)
Diameter -
Height -
Weight 130 g
Main characteristics
Item number TATKA00521
Focal length 7.5 mm
Apparent field of view 52 degrees
Eye relief 10 mm
Barrel 1.25" (31.75 mm) and 0.965" (24.5 mm)
Diameter -
Height -
Weight 115 g
Main characteristics
Item number TATKA00528
Focal length 10 mm
Apparent field of view 52 degrees
Eye relief 6.2 mm
Barrel 1.25" (31.75 mm)
Diameter -
Height -
Weight 90 g
Main characteristics
item number TATKA00522
Focal length 12.5 mm
Apparent field of view 52 degrees
Eye relief 9 mm
Barrel 1.25" (31.75 mm)
Diameter -
Height -
Weight 100 g
Main characteristics
Item number TATKA00523
Focal length 18 mm
Apparent field of view 52 degrees
Eye relief 13 mm
Barrel 1.25" (31.75 mm)
Diameter -
Height -
Weight 125 g
Main characteristics
Item number TATKA00524
Focal length 24 mm
Apparent field of view 52 degrees
Eye relief 17 mm
Barrel 1.25" (31.75 mm)
Diameter -
Height -
Weight 150 g
Main characteristics
Item number TATKA00525
Focal length 30 mm
Apparent field of view 52 degrees
Eye relief 20 mm
Barrel 1.25" (31.75 mm)
Diameter -
Height -
Weight 170 g
Main characteristics
Item number TATKA00529
Focal length 40 mm
Apparent field of view 52 degrees
Eye relief 40 mm
Barrel 2" (50.8 mm)
Diameter 58 mm
Height 128 mm
Weight 400 g
Main characteristics
Item number TATKA00531
Focal length 50 mm
Apparent field of view 52 degrees
Eye relief 40 mm
Barrel 2" (50.8 mm)
Diameter 63 mm
Height 151 mm
Weight 530 g
Eyepiece LE 5 mm
Eyepiece LE 5 mm
Eyepiece LE 7.5 mm
Eyepiece LE 7.5 mm
Eyepiece LE 12.5 mm
Eyepiece LE 12.5 mm
Eyepiece LE 18 mm
Eyepiece LE 18 mm
Eyepiece LE 24 mm
Eyepiece LE 24 mm
Eyepiece LE 30 mm
Eyepiece LE 30 mm
Eyepiece LE 10 mm
Eyepiece LE 10 mm
Eyepiece LE 40 mm
Eyepiece LE 40 mm
Eyepiece new LE 50 mm
Eyepiece new LE 50 mm