The EXPLORE SCIENTIFIC O-III filter allows the accurate observation of low-light deep sky objects; narrow band version with 6.5 nm to increase contrast even in difficult urban conditions.
- High-quality EXPLORE SCIENTIFIC O-III filter
- Only lets the emission lines of oxygen pass
- Absorbs all other emission lines and almost all artificial light
- Band pass width: 6.5 nm
- Narrow band version for difficult urban conditions
- Allows more contrast for faint deep sky objects
- Individual test certificate included to guarantee you receive a premium filter
Product number:
12565
Former product no.:
0310105
Note: Our item numbers have been updated.
You can continue to search for products using either the previous or the new item number.
EAN:
4007922072661
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" 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.
FEATURES
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.
- enables the observation of so-called emmission nebulae
- blocks almost the entire artificial light
- only the two emmission lines of the oxygen passes the filter
- band pass width: 6.5 nm
- narrow band version for difficult urban conditions
- allows more contrast for faint deep sky objects
- 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" O-III nebula filter
| Batteries required: | No |
|---|---|
| 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 |
| Net weight (without access.) (g): | 10 |
| 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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EXPLORE SCIENTIFIC 1.25" H-Alpha Nebula Filter 7nm
£150.00*
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. FEATURESH-Alpha filters are used exclusively for astrophotographyAllows photography of emission nebulae that glow in the light of red hydrogenMany of these emission nebulae are only visible in their full expansion on photos taken with this filterBlocks almost all artificial light, especially from mercury and sodium vapor lampsOnly allows the emission line of red hydrogen to pass throughNarrow band version for difficult urban conditionsTransmission bandwidth: 7 nmAllows more contrast and detail for all urban astrophotographersIdeal for use near cities, in heavy brightened skiesIndividual test certificate included to guarantee you receive a premium filterSCOPE OF DELIVERY1x 1.25'' H-Alpha Nebula Filter
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