Sky-Watcher 1.25" O-III Narrowband Filter

Sky-Watcher 1.25" O-III Narrowband Filter

Designed for observing gas and planetary nebulae
Works ideally with larger aperture telescopes 200mm and above




The O-III narrowband filter is specially designed for the observation of gas and planetary nebulae.

It distinguishes different contrasts of the wavelengths of light that pass through, giving ideal conditions for the observation of faint super nova remnants and planetary remnants.

The O-III narrow band-pass filter isolates just the two doubly ionized oxygen lines (496 and 501nm) emitted by diffuse, planetary and extremely faint nebulae. O-III filters work ideally with larger aperture telescopes in the 200mm and larger range. With larger aperture telescopes, observers will have a better opportunity to identify nebulae objects in the deep sky. It can produce near-photographic views of the Veil, Ring, Dumbbell, Orion, plus many other nebulae under dark skies.

List Price:
Price: £42.95

Sky-Watcher 2" UHC (Ultra High Contrast) Filter

Sky-Watcher 2" UHC (Ultra High Contrast) Filter

Performs well in smaller aperture instruments
Supresses light pollution
Comes with storage case



The narrowband UHC filter, like the O-III filter, isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen-beta line (486nm) emitted by planetary and most emission nebulae. This filter permits superb views of objects like the Orion, Lagoon, Swan and other extended nebulae. It performs well in smaller aperture instruments owing to its greater light transmission than the O-III, yet still suppresses light pollution well. The UHC filter is the best all-around dark-sky nebula filter. Available in two sizes, threaded to fit either standard 1.25" or 2" astronomical eyepieces. Supplied with storage case.

List Price:
Price: £71.99

Sony FDA-EP12 Eyepiece Cup for SLT-A77

Sony FDA-EP12 Eyepiece Cup for SLT-A77

Minimizes stray light entering viewfinder
More comfortable viewing
For SLT-A77



Sony FDA-EP 12 Augenmuschel

List Price:
Price: £14.61

Sky-Watcher 1.25" UHC (Ultra High Contrast) Filter

Sky-Watcher 1.25" UHC (Ultra High Contrast) Filter

Performs well in smaller aperture instruments
Supresses light pollution
Comes with storage case



The narrowband UHC filter, like the O-III filter, isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen-beta line (486nm) emitted by planetary and most emission nebulae. This filter permits superb views of objects like the Orion, Lagoon, Swan and other extended nebulae. It performs well in smaller aperture instruments owing to its greater light transmission than the O-III, yet still suppresses light pollution well. The UHC filter is the best all-around dark-sky nebula filter. Available in two sizes, threaded to fit either standard 1.25" or 2" astronomical eyepieces. Supplied with storage case.

List Price:
Price: £42.99

Sony FDA-EP10 Eyepiece Cup for NEX-7

Sony FDA-EP10 Eyepiece Cup for NEX-7

Minimizes stray light entering viewfinder
More comfortable viewing
For NEX-7 camera or FDA-EV1S viewfinder for NEX-5N



Enjoy comfortable use of your camera's eye-level viewfinder and limit interference from stray light which can reduce contrast with this replacement eyepiece cup for Sony Alpha NEX-7 and NEX-6 cameras. This eyepiece cup is also compatible with the OLED viewfinder for select Alpha NEX cameras (FDA-EV1S).

List Price:
Price: £15.76