The high-quality Explore Scientific H-beta filter allows the observation of low-light deep sky objects
- High-quality Explore Scientific H-beta Filter
- Observation of low-light deep sky objects
- Absorbs disturbing light from street lamps etc.
Product number:
10928
Former product no.:
0310235
Note: Our item numbers have been updated.
You can continue to search for products using either the previous or the new item number.
EAN:
4007922004532
WEEE-Reg.-Nr.:
DE 34323861
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FAQ - Frequently Asked Questions
That is normal. Finder scopes are only used to make objects easy to locate. The image orientation does not matter for observation.
- Alt-azimuth: easy to use, moves horizontally and vertically
- Equatorial: enables precise tracking of objects with only one axis – ideal for high magnifications and astrophotography
- Moon: from 30 mm
- Planets: from 100 mm
- Deep sky: from 150 mm
Product information "EXPLORE SCIENTIFIC 1.25" H-Beta Nebula Filter"
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects bejond the solar systems enourmously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artifical light. The Explore Scientific H-beta filter uses a characteristic property of the so called emmission nebulae. Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements - in this case hydrogen. The Explore Scientific H-beta nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the emmission line of the hydrogen can pass the filter. The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the horsehead nebula is almost not visible with a 300mm telescope. By using this filter you can see the nebula and its structures without problems. A must for every visual observer.
The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
| Colour: | black |
|---|---|
| Extended warranty (years): | 10 |
| Eyepiece Barrel Diameter (mm): | 31.7 |
| Field of application [Telescope-filter]: | Filter for Deep-Sky Observing and Astrophotography |
| Filter thread size (mm): | 31.75 |
| Material: | Glass , Plastic |
| Telescope filter type: | Nebula Filter |
Product and safety instructions
Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede
Contact:
www.bresser.de
www.bresser.de
Warning notes
- General safety instructions DANGER Risk of eye injuries! Never look directly at the sun or near the sun through this device. There is a risk of blindness! Children should only use the device under supervision. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a risk of suffocation! FIRE HAZARD! Do not expose the device especially the lenses to direct sunlight! The light concentration could cause fires. RISK of material damage! Do not dismantle the device! In case of a defect, please contact your dealer. They will contact the service center and may send the device in for repair. Do not expose the device to temperatures above 60°C!
- Never look at the sun through an eyepiece/telescope without a certified protection filter. A moon filter can never be used for solar observation. The moon filter is only suitable for moon observation. The solar filter must be mounted in front of the telescope opening, not at the eyepiece. Otherwise, the concentrated light beam through the optics will immediately destroy the filter foil, leading to severe eye damage, including permanent blindness.
- Never leave the optics unattended. Children and inexperienced adults could point the telescope at the sun without proper precautions and lose their eyesight.
- Do not expose the device to high temperatures.
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CHARACTERISTICS OPTIC
Optical design: reflector telescopeMirror diameter: 130 mm / focal length: 1000 mm / F/7.7Maximum recommended magnification: 260xTelescope for night and solar observation
Collects 345x more light than the human eye
Pure colour reproduction of the objects
Handle for easy tronsportation and integrated piggyback camera holder (1/4 thread)
Smartphone adapter for sky navigation included
Dovetail plate with stainless steel rail
T2 thread for DSLR cameras (T2-adapter ring for your camera is needed)
50,8mm (2) to 31,7mm (1,25) adapter with integrated T2 thread (T2-adapter ring for your camera is needed)
CHARACTERISTICS MOUNT
Stable parallactic mount with fine drive in both axes
Circular bubble level for easy horizontal alignment
Stable height-adjustable stainless steel tripod
Retrofittable with a tracking motor for the right ascension axis
Pole height scale for setting the latitude
Scaled graduated circular rings for easier finding of objects by means of star atlas or planetarium software
Tripod weight: 4.7 kg
Mount weight: 4 kg (without counterweight)
Total weight incl. counterweight: 13.2 kg
SCOPE OF DELIVERY
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Tube rings with dovetail plate, handle and camera holder
Equatorial mount EXOS-1
Steel tripod with tripod spider and eyepiece holders
26mm SuperPlössl eyepiece (31.7mm / 1.25")
Integrated 31.7mm and T2 adapter
Adapter for 50.8mm (2") eyepieces
Aperture Solar-filter
6x30 straight viewfinder
Smartphone adapter for celestial navigation
Astronomy Software Stellarium (via Download )
1 x 4.5 kg counterweight
Rotatable star map
Pre-order
EXPLORE SCIENTIFIC 2" UHC Nebula Filter
£83.00*
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar system enormously. Depending on the type of the celestial object, it is possible to dramatically increase the contrast by blocking annoying artificial light. The EXPLORE SCIENTIFIC UHC filter "zeros in" on the wavelengths of so-called emission nebulae. Those objects glow in special colours - their emission lines. Those emission lines are linked to chemical elements - in this case hydrogen at 486nm and 656nm, plus oxygen at 496nm and 501nm. The EXPLORE SCIENTIFIC UHC nebula filter blocks all other colour wavelengths (and thereby nearly all of artificial light) and only the emission line of the hydrogen and oxygen can pass the filter. The result is astonishing: suddenly nebulae are visible at locations that were completely invisible from, without filters. In suburban skies, for example the Owl-nebula M97, the Veil-nebula NGC 6992 or even the bright Dumbell-nebula M27 are not clearly visible. Using this filter allows you to see nebulae and their structures in much finer detail. A must for every visual observer.
The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
Currently unavailable
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EXPLORE SCIENTIFIC 1.25" S-II Nebula Filter 12nm
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One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar system enormously. Depending on the type of celestial object, it is possible to increase the contrast dramatically by blocking the interfering artificial light.
The EXPLORE SCIENTIFIC S-II filter uses the property of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case ionized sulfur. The EXPLORE SCIENTIFIC S-II nebula filter blocks all other colors (and thus almost all artificial light) and lets only the emission lines of ionized sulfur at 672 nm through. The effect is amazing: suddenly, nebulae become visible in places that appear completely empty without the filter. In slightly brightened skies many planetary nebulae, emission nebulae and supernova remnants can be seen without any difficulties when using this filter. A must for every visual observer and for astrophotography.
EXPLORE SCIENTIFIC nebula filters come with an individual test report - so you can be sure to get high quality filters.
FEATURES
Simplifies the observation of planetary nebulae, emission nebulae and supernova remnants
Blocks almost all artificial light
Lets only the emission lines of ionized sulfur at 672 nm pass
Transmission bandwidth: 12 nm
Allows for more contrast in faint deep sky objects
Ideal for use near cities, in slightly brightened skies
Individual test certificate included to guarantee you receive a premium filter
SCOPE OF DELIVERY
1x 1.25'' S-II nebula filter
Available
