BRESSER LER 8-24mm 1.25'' zoom eyepiece
An eyepiece for every occasion
The BRESSER zoom eyepiece covers the wide range of focal lengths from 8 to 24mm. These are also the focal lengths most commonly used with most telescopes. Specially designed for immediate observations, the zoom eyepiece is a good choice to avoid having to pack a suitcase full of eyepieces,
Always have the ideal magnification at hand
A quick twist and you have the ideal magnification set for you The adjustment is continuous from 8 to 24 mm focal length. This eliminates the need to always change eyepieces.
Comfortable viewing
The BRESSER zoom eyepiece offers a large and comfortable 20 mm eye relief all the way to the eyepiece lens (LER = long eye relief). This means comfortable viewing even during prolonged observation, a particularly important criterion for spectacle wearers. The rubber eyepiece can also be individually adjusted by a twist-and-turn movement. The apparent field of view is 40 to 56 degrees, providing a good overview.
Advanced optical design
To achieve the best possible image over the entire focal length range, a sophisticated optical design with 8 lenses in 5 groups is used. Full multi-coating of all lens surfaces also ensures maximum light transmission. To effectively suppress unwanted reflections, all lenses are carefully blackened at the edges. Thus, the image produced offers the highest possible contrast and image brightness.
Compact and solid design
The BRESSER zoom eyepiece is made entirely of black anodized aluminum. It has an extremely solid, high-quality material appearance and is very durable even under heavy use. The precise zoom mechanism can be operated safely and securely via the ribbed metal adjustment ring. A white laser engraving with focal length and pointer arrow indicates the currently set focal length, even in low light.
Magnificationsachievable with the usual telescope focal lengths
350 mm 44 - 15x
400 mm 50 - 17x
500 mm 63 - 21x
650 mm 81 - 27x
750 mm 94 - 31x
900 mm 113 - 38x
1000 mm 125 - 42x
FEATURES
- Zoom eyepiece with stepless 8 to 24 mm focal length adjustment
- One eyepiece covering a wide range of focal lengths
- Continuous adjustment to the ideal magnification
- Quick adjustment of magnifications without changing eyepieces
- Convenient 20 mm eye relief (LER = long eye relief)
- Adjustable rubber eyepiece for ideal interpupillary distance adjustment
- Also very suitable for spectacle wearers
- Compact and solid design
- Manufactured entirely of black anodized aluminum
- Very high quality material appearance
- Precise and robust zoom adjustment mechanism
- Grooved grip for zoom adjustment
- Blank laser engraving with focal length and pointer arrow
- Focal length range 8-24 mm freely adjustable
- 40 to 56 degrees apparent field of view
- Optical design: 8 objectives in 5 groups
- All objective surfaces with full multi-coating for a bright, sharp image
- Eyepiece sleeve diameter: 1.25 inch / 31.7 mm
- Filter thread on sleeve: M28 x 0.6 mm (standard 1.25'' filter thread)
- Eyepiece weight: 250 g
- Eyepiece focal length 96.2 mm
- Diameter: 47 mm
- Color: black
DELIVERY PACKAGE
