EXPLORE SCIENTIFIC 1.25" H-Alpha Nebula Filter 7nm

Product Highlights

The EXPLORE SCIENTIFIC H-Alpha filter allows photography of red glowing emission nebulae; narrow band version with 7 nm to increase contrast even in difficult urban conditions.

  • High-quality EXPLORE SCIENTIFIC H-Alpha filter
  • Only lets the emission lines of hydrogen pass
  • Absorbs all other emission lines and almost all artificial light
  • Ideal for use near the city, with heavy lightened skies
  • Band pass width: 7 nm
  • Better contrast and more details achievable for urban astrophotographers
  • Blocks almost all light from mercury and sodium vapor lamps
  • Many of the red glowing emission nebulae are only visible in full expansion on photos taken with these filters
  • In spite of the existing light pollution amazingly good image results are possible
  • Individual test certificate included to guarantee you receive a premium filter

£99.00*

% £159.00* (37.74% saved)

Available

Product number: 0310145
GTIN/EAN: 4007922072753
Product information "EXPLORE SCIENTIFIC 1.25" H-Alpha Nebula Filter 7nm"
Apart from air turbulence, the brightening of the night sky is the greatest barrier to observing faint objects beyond the solar system. Due to streetlamps and other artificial lighting the sky in urban areas is no longer properly black. As a result, the contrast and thus the perception of deep-sky objects also suffer. However, depending on the type of celestial object, it is possible to filter out some of the interfering light making it easier to photograph the objects.

The EXPLORE SCIENTIFIC H-Alpha filter uses the characteristic 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 the red glowing hydrogen. This filter blocks all other colors (and therefore almost all artificial light) and lets only the emission lines of hydrogen through. Especially the disturbing light of mercury and sodium vapor lamps is effectively blocked. The effect is amazing: Suddenly, nebulae become visible on the photos in places which appear completely empty without the filter.

The EXPLORE SCIENTIFIC H-Alpha Nebula Filter has been developed exclusively for astrophotography. Especially in heavy light-polluted skies many emission nebulae are only visible and shown in full expanse on astrophotos when using this filter. The H-Alpha nebula filters make astrophotography near the city possible and the use leads to amazingly good image results despite the existing light pollution. A must for every urban astrophotographer.

The EXPLORE SCIENTIFIC nebula filters are delivered with an individual test report - so you can be sure to get high quality filters.

This filter's narrow passband of only 7 nm bandwidth works out the faint emission nebulae or makes them visible even under difficult urban conditions.


FEATURES
  • H-Alpha filters are used exclusively for astrophotography
  • Allows photography of emission nebulae that glow in the light of red hydrogen
  • Many of these emission nebulae are only visible in their full expansion on photos taken with this filter
  • Blocks almost all artificial light, especially from mercury and sodium vapor lamps
  • Only allows the emission line of red hydrogen to pass through
  • Narrow band version for difficult urban conditions
  • Transmission bandwidth: 7 nm
  • Allows more contrast and detail for all urban astrophotographers
  • Ideal for use near cities, in heavy brightened skies
  • Individual test certificate included to guarantee you receive a premium filter

SCOPE OF DELIVERY

  • 1x 1.25'' H-Alpha Nebula Filter
Colour: black
Field of application [Telescope-filter]: Light Pollution Filter for Astrophotography
Material: Glass, Plastic
Telescope filter type: Nebula filter

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BRESSER Nebula 5 EQ/AZ Wifi-Network Mount
The new BRESSER Nebula 5 EQ/AZ Wifi-Network Mount is a precise and quiet telescope mount – ideal for astrophotography. The controller box offers numerous central connectivity options for various accessories such as cameras, filter wheels, and motor focusers via USB (2.0/3.0), simplifying the setup of a professional astrophotography machine. BRESSER has relied on innovation coupled with quality Made in Italy for this top-notch product. The manufacturer's long experience in mount construction guarantees a high-end device with first-class functionality and utmost reliability. Additionally, the in-house development team in Italy ensures quick response times in technical support and the adaptation of new device drivers. Truly, "Professionals at work!" The mount is controlled via pre-installed web-app software, accessible via WIFI and Ethernet cable connection. The philosophy behind the Nebula GoTo system is to provide the user with a control system independent of a standard PC, which can be remotely controlled via a smart device such as a mobile phone or tablet. However, this does not exclude the traditional use of computers of all types and brands, which can be connected to the system either wired or wirelessly. The BRESSER Nebula GoTo System Controller is a Raspberry Pi 4 microcomputer, which allows complete control of the setup (mount, camera, etc...) without the need for any other external device. The BRESSER Nebula GoTo system comes equipped with all Linux-based applications required for performing all astrophotographic functions.The existing INDI environment allows for the control of almost all devices (cameras, filter wheels, rotators, etc., including observatory domes) needed for local or remote astrophotography sessions. The system also offers high flexibility for users who prefer to use traditional computer client applications such as Cart du Ciel (Star Chart), TheSkyX, SkySafari, Stellarium, and other planetarium programs as well as SGP, Nina, CCD Ciel, and other astrophotography tools. This complete compatibility is ensured through the adoption of the Alpaca communication protocol, which allows for the use of traditional ASCOM platform drivers for native INDI devices.State-of-the-art mount construction The BRESSER Nebula mounts are CNC-manufactured from stainless steel and aluminium. The sleek and functional design is courtesy of a renowned Italian mount manufacturer, who has licensed the design and now manufactures these fine BRESSER products 100%. So, look forward to a stable yet easily portable mount, which despite its light weight of only 13 kg (incl. tripod), allows for a high load capacity of up to 20 kg.Visual Observation For visual observation and direct use, control the mount with the hand control box included in the package. Alternatively, connect the Nebula 5 via WLAN directly to your smartphone or tablet and use the virtual hand control box. Of course, all adjustment parameters can also be set via the web application. The user interface is deliberately simple and clear to ensure intuitive operation.Astrophotography Here, the Nebula mount shows its full strength. Whether mobile or stationary, the capability for remote operation is crucial. Connect your laptop or PC either via WLAN or with an Ethernet cable (recommended for faster data transmission) directly to the Raspberry-Pi control unit of the mount. Then use the pre-installed Kstars/EKOS software to control the mount and all external devices such as cameras, motor focus, filter wheel, etc. Alternatively, you can also directly control the unit with your own software. Applications such as Cart du Ciel (Star Chart), TheSkyX, SkySafari, Stellarium, and other planetarium programs as well as SGP, Nina, CCD Ciel, and other astrophotography tools can be used without any issues.2-in-1 Mount with EQ and AZ Mode If required, the Nebula can be switched from the equatorial mode to the azimuthal mode. This is particularly advantageous for observing nature or tracking satellites. Thus, the mount can be used for various applications and is not limited to astronomy.Attachment of up to two optics Would you like to adapt multiple optics? No problem. Simply use the option to replace the counterweight bar with another telescope. Use the second optic as a counterweight to the main telescope. Set the Nebula 5 to azimuthal mode, remove the counterweight bar, and screw a suitable second telescope clamp directly onto the mount. FEATURES Precise and quiet telescope mount – ideal for astrophotography Extensive connectivity options for various accessories via USB Integrated web app software enables central control of all components Integrated Raspberry Pi with USB-3 ports and Ethernet port Compatible with client applications such as Cart du Ciel (Star Chart), TheSkyX, SkySafari, Stellarium Compatible with SGP, Nina, CCD Ciel, and other astrophotography tools Virtual hand control box and settings menu for smartphones and tablets PC control – ASCOM and INDI compatible USB ports for cameras, motors, filter wheels, etc. Conversion from parallactic to azimuthal mode possible Small hand box for basic functions included High load capacity and yet lightweight Mount CNC-manufactured from stainless steel and aluminium Tooth belt drive for precise and quiet tracking Load capacity: 15 kg in EQ mode and 20 kg in AZ mode Dual prism clamping for Vixen GP and Losmandy Weight of the mount: 8 kg Weight of the tripod: 5 kg SCOPE OF DELIVERY Nebula 5 EQ/AZ Mount Field tripod Central control unit with Raspberry Pi Counterweight: 6 kg (1 piece) Basic hand box Connection cables Power supply 230V/12V/3A

£2,495.00*
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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.

£50.00* £99.00* (49.49% saved)
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EXPLORE SCIENTIFIC 1.25" O-III Nebula Filter 6.5nm
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lighting, 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 O-III filter uses a characteristic property of the so-called emmission nebulae. Those objects glow in special colors, the so-called emmission lines. Those emmission lines are linked to chemical elements - in this case oxygen. The EXPLORE SCIENTIFIC O-III nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the two emmission lines of the oxygen can pass the filter. The result is astonishing: suddenly, nebulae are visible in locations that were completely empty without using filters. In suburban skies, for example, the veil nebula NGC 6992 is almost invisible with a 200 mm telescope. By using this filter you can see the nebula and its structures without any difficulties. A must for every visual observer and for astrophotography. The EXPLORE SCIENTIFIC nebula filters come with an individual test certificate - your guarantee for receiving a premium filter.This filter's narrow passband of only 6.5 nm bandwidth highlights the faint emission nebulae or makes them visible even under difficult urban conditions. FEATURESenables the observation of so-called emmission nebulaeblocks almost the entire artificial lightonly the two emmission lines of the oxygen passes the filterband pass width: 6.5 nmnarrow band version for difficult urban conditionsallows more contrast for faint deep sky objectsideal for use near cities, in heavy brightened skiesindividual test certificate included to guarantee you receive a premium filterSCOPE OF DELIVERY1x 1.25" O-III nebula filter

£80.00* £159.00* (49.69% saved)