Baader MaxBright II binocular head with hard case

MaxBright II Binocular

General presentation

The MaxBright II Binokular is an advanced accessory for astronomy enthusiasts who want to observe with both eyes, offering an immersive and comfortable visual experience. It features:

• From 27 mm prisms offering a wide field of vision.
• From multilayer coatings for maximum light transmission.
• A system ClickLock® innovative eyepiece safety system.

Main applications

The MaxBright II is designed for :

• Use on a variety of telescopes (refractors, Newton, Schmidt-Cassegrains).
• Correct optical defects such as chromatic aberration with Glaswegkorrektoren (GWK).
• Provide a sharp, bright image even at high magnifications.

Configurations and adaptations

The accessories available allow you to customize the binocular to suit your telescope and objectives:

Glaswegkorrektoren (GWK)

• 1,25x (# 2456314): Optical correction with a 20 mm gain in back-focus.
• 1,7x (# 2456316): 35 mm back-focus gain, suitable for low-aperture telescopes.
• 2,6x (# 2456317): Ideal for very high magnifications with a 65 mm gain in back-focus.
• GWK 2” Newton 1,7x (# 2456300): Specific for Newton telescopes to correct coma aberrations.

Prisms and mirrors T-2

Recommended models for minimizing optical length include :

• T-2 90° with 32 mm prism (# 2456005)
• T-2 BBHS® Zenitspiegel 36mm With BBHS® coating for improved reflectivity.

The MaxBright II can be configured in several ways to suit your telescope and your needs:

1. With T-2 prisms or mirrors:

• Recommended for minimizing optical length and ensuring easy focusing.
• Using GWK to adjust the optical path.

2. With 1.25” or 2” adapters:

• Handy if the telescope's back-focus is sufficient.

3. With telecentric systems (e.g. SunDancer II) :

• Ideal for planetary observations at high magnifications.

Choice of accessories

• Glaswegkorrektoren (GWK) Corrects aberrations introduced by prisms and extends focal length. Various correction factors are available (1.25x, 1.7x, 2.6x).
• Zenitspiegel and T-2 prisms Offer different optical lengths and are suitable for various telescopes. Examples: T-2 90° (32 mm), T-2 BBHS® for sharp images.
• Eyepieces Compatible with 1.25" eyepieces. Hyperion® and Morpheus® series are recommended. Identical eyepieces (same manufacturer and model) are essential for a balanced binocular image.

Installation and settings

• Interpupillary distance adjustment - Adapt the binocular to your eye distance for optimum field of view.
• Diopter - Adjust each eye separately to correct focus differences.
• Mounting - Options include direct use of a GWK or integration into a mirror/prism with a T-2 adapter.

Compatibility with various telescopes

The MaxBright II is compatible with :

• Newton - Often requires a specific GWK (1.7x) to compensate for weak back-focus.
• Schmidt-Cassegrains - Can be used without GWK if aperture is greater than f/10.
• Astronomical telescopes - Recommended with T-2 prisms to minimize optical length.

Specific applications

• Solar observation - Associated with Herschel Prism for exceptional details of the sun's surface. (Precautions must be taken to avoid the risks involved in observing the sun).
• Astrophotography - Specific adapters can be used to connect cameras.

Care and maintenance

• Clean prisms and lenses with suitable products.
• Make sure the adjustment mechanisms (diopter, ClickLock®) are working properly.

Benefits

• The manual offers clear explanations of the basics of optical and mechanical adjustments.
• Pre-designed configurations reduce installation complexity.
• The use of binocular eyepieces enhances comfort for long observation sessions.

Box contents

The MaxBright II Binokular is supplied with the following components:

• MaxBright II binocular (# 2456460)
• T-2 rotary adapter (pre-installed) with plastic adjustment ring
• A Zeiss-Microbayonet interface
• Wrench for mounting/dismounting T-2 and Zeiss adapters
• A rigid ABS case with compartments for accessories