With the high-quality EXPLORE SCIENTIFIC O-III fog filter, observing low-light deep sky objects is much easier
  • High-quality EXPLORE SCIENTIFIC O-III Fog Filter
  • Only lets pass the emission lines of oxygen
  • Absorbs all remaining colors and almost all artificial light
  • Individual test report included

Bresser EXPLORE SCIENTIFIC 1.25 O-III Nebula Filter

Product code: 46799
66,45 tax incl.

Pre-order. Delivery time from 3 weeks.

Delivery options
Delivery Instore
possibly after 26.12.2025
Pickup in store
Free
Delivery
possibly after 28.12.2025
Courier (Omniva, DPD)
from 10 €
Delivery Bycicle
possibly after 26.12.2025
Bike delivery (in Riga only)
from 9 €
SKU: 46799
Ean: 4007922000046
Manufacturer: Bresser

Condition: New product

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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 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 O-III 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 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 astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the veil nebula NGC 6992 is almost not visible with a 200mm 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.

FEATURES
  • 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

SCOPE OF DELIVERY
  • 1x 1,25" O-III nebula filter
Type of ProductTelescope acsessories
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Bresser EXPLORE SCIENTIFIC 1.25 O-III Nebula Filter

Bresser EXPLORE SCIENTIFIC 1.25 O-III Nebula Filter

With the high-quality EXPLORE SCIENTIFIC O-III fog filter, observing low-light deep sky objects is much easier
  • High-quality EXPLORE SCIENTIFIC O-III Fog Filter
  • Only lets pass the emission lines of oxygen
  • Absorbs all remaining colors and almost all artificial light
  • Individual test report included

Write a review