Skip to content
  • 💸 Get more for your money with 20-40% off! 💸
  • 💸 Get more for your money with 20-40% off! 💸
Telescope ShopTelescope Shop
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Telescopes
  • Eyepieces
  • Binoculars
    • Instruments
    • Accessories
  • Telescope accessories
    • Focusers
    • Alignment accessories
    • Dew shields & Ventilation
    • Prisms & Diagonal mirrors
    • Transport & storage
    • Parts & spares
    • Cables & power supplies
    • Barlow & Erecting Lenses
    • Adaptors
    • Finder
    • Straylight and glare shields
    • Binocular viewers
  • Filters
    • L-RGB Filters
    • Nebulae filters
    • Pass Filters
    • Planetary & Comet Filters
    • Filter wheels & Filter sliders
    • Other
    • Moon filters & Polarizing filters
    • Blocking Filters
  • Mountings & accessories
    • Tube clamps
    • Pole finder
    • Mountings
    • Counterweights
    • Controls
    • Mounting plates and rails
    • Miscellaneous
    • Column Stands & Extensions
    • Tripods & Mounts
    • Motor- & Goto-Upgrades
Filters
Sale!
Baader Filters OIII CMOS Ultra-Narrowband 65x65mm
Baader Filters OIII CMOS Ultra-Narrowband 65x65mm - Image 2
Baader Filters OIII CMOS Ultra-Narrowband 65x65mm - Image 3
Baader Filters OIII CMOS Ultra-Narrowband 65x65mm -Telescope Shop Baader Filters OIII CMOS Ultra Narrowband 65x65mm 1
Baader Filters OIII CMOS Ultra-Narrowband 65x65mm -Telescope Shop Baader Filters OIII CMOS Ultra Narrowband 65x65mm 2

Baader Filters OIII CMOS Ultra-Narrowband 65x65mm

$343.00 Original price was: $343.00.$97.99Current price is: $97.99.

Buy Now
SKU: YXN0C 70885 Category: Filters
  • Your satisfaction is 100% guaranteed.
  • Best price, safe shopping guarantee
  • Made of environmentally friendly materials
  • Top Quality Products
Browse
  • Binoculars
    • Accessories
    • Instruments
  • Eyepieces
  • Filters
    • Blocking Filters
    • Filter wheels & Filter sliders
    • L-RGB Filters
    • Moon filters & Polarizing filters
    • Nebulae filters
    • Other
    • Pass Filters
    • Planetary & Comet Filters
  • Mountings & accessories
    • Column Stands & Extensions
    • Controls
    • Counterweights
    • Miscellaneous
    • Motor- & Goto-Upgrades
    • Mounting plates and rails
    • Mountings
    • Pole finder
    • Tripods & Mounts
    • Tube clamps
  • Telescope accessories
    • Adaptors
    • Alignment accessories
    • Barlow & Erecting Lenses
    • Binocular viewers
    • Cables & power supplies
    • Dew shields & Ventilation
    • Finder
    • Focusers
    • Parts & spares
    • Prisms & Diagonal mirrors
    • Straylight and glare shields
    • Transport & storage
  • Telescopes
  • Uncategorized
  • Description
  • Additional information
  • Reviews (0)

Product description

More about the series Ultra-Narrowband…

OIII filtersonly allow light with a wavelength of 501 nanometres through. This corresponds with the spectrum lines fordouble ionised oxygen. These lines are emitted by planetary nebulae and some emission nebulae, so these objects remain visible whilst the rest is blocked out by the filter. This effect increases contrast and makes faint nebulae visible for the first time.

Astrophotography:These filters are best used with monochrome cameras. Ideally, images taken using these filters should be combined with images using H-alpha and SII filters. This creates an image which depicts faint nebulae clearly and with high-contrast.

Central wavelength(nm)

500,7

Half-value width(nm)

4

Frame

Frames

Mount material

Aluminium

Coating of optical system

Reflex-Blockerâ„¢

Appropriate for...

f/10 – f/3.5

filter thickness(mm)

2

Filter Size(mm)

65 x 65

Type

Filters Filters No matter whether they are for observing or for astrophotography, filters are very important accessories.Click to read more…

Type of build

line filter Line filter Filters that allow only light in a specific spectral line to pass through.Click to read more…

Series

Ultra-Narrowband Ultra-Narrowband Emission line filter with a very narrow full width at half maximumClick to read more…

Useful for photographs

yes

Visually useful

no

Twin stars

no

Moon & Planets

no

Nebulae & galaxies

yes

Reviews

There are no reviews yet.

Be the first to review “Baader Filters OIII CMOS Ultra-Narrowband 65x65mm” Cancel reply

Related products

Sale!
Astrodon Filters 49.7 Mm Dia. Unmounted Johnson/Cousins V Edge-blackened
Quick View

Filters

Astrodon Filters 49.7 Mm Dia. Unmounted Johnson/Cousins V Edge-blackened

$339.00 Original price was: $339.00.$97.99Current price is: $97.99.
Sale!
Astrodon Filters Tru-Balance LRGB2 E50R 50mm Filter, Unmounted
Quick View

Filters

Astrodon Filters Tru-Balance LRGB2 E50R 50mm Filter, Unmounted

$320.00 Original price was: $320.00.$97.99Current price is: $97.99.
Sale!
Astronomik Filters DeepSky 1.25" RGB Filter Set
Quick View

Filters

Astronomik Filters DeepSky 1.25″ RGB Filter Set

$311.00 Original price was: $311.00.$97.99Current price is: $97.99.
Sale!
Astronomik Filters OIII 6nm CCD MaxFR Clip Sony Alpha 7
Quick View

Filters

Astronomik Filters OIII 6nm CCD MaxFR Clip Sony Alpha 7

$318.00 Original price was: $318.00.$98.99Current price is: $98.99.
Sale!
Astronomik Filters UHC 1.25"
Quick View

Filters

Astronomik Filters UHC 1.25″

$107.00 Original price was: $107.00.$74.90Current price is: $74.90.
Sale!
Astronomik Filters OIII 6nm CCD MaxFR Clip Nikon XL
Quick View

Filters

Astronomik Filters OIII 6nm CCD MaxFR Clip Nikon XL

$359.00 Original price was: $359.00.$96.99Current price is: $96.99.
Sale!
Explore Scientific Filters Filter UHC 2"
Quick View

Filters

Explore Scientific Filters Filter UHC 2″

$90.00 Original price was: $90.00.$63.00Current price is: $63.00.
Sale!
Astronomik Filters SII 12nm 27mm CCD Filter, Unmounted
Quick View

Filters

Astronomik Filters SII 12nm 27mm CCD Filter, Unmounted

$139.00 Original price was: $139.00.$99.99Current price is: $99.99.
MY ACCOUNT
  • Cart
  • Checkout
  • My account
  • Wishlist
ABOUT US
  • About Us
  • FAQ
  • Returns & Exchanges
  • Delivery
  • Contact Us
LEGAL
  • Privacy Policy
  • Payment Method
  • Shipping & Returns
  • Term and Conditions
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © www.telescopeexperts.com
    • Telescopes
    • Eyepieces
    • Binoculars
      • Instruments
      • Accessories
    • Telescope accessories
      • Focusers
      • Alignment accessories
      • Dew shields & Ventilation
      • Prisms & Diagonal mirrors
      • Transport & storage
      • Parts & spares
      • Cables & power supplies
      • Barlow & Erecting Lenses
      • Adaptors
      • Finder
      • Straylight and glare shields
      • Binocular viewers
    • Filters
      • L-RGB Filters
      • Nebulae filters
      • Pass Filters
      • Planetary & Comet Filters
      • Filter wheels & Filter sliders
      • Other
      • Moon filters & Polarizing filters
      • Blocking Filters
    • Mountings & accessories
      • Tube clamps
      • Pole finder
      • Mountings
      • Counterweights
      • Controls
      • Mounting plates and rails
      • Miscellaneous
      • Column Stands & Extensions
      • Tripods & Mounts
      • Motor- & Goto-Upgrades
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.