Extra narrowband SII-CCD 6.5nm filter (Sulful II for CCD) is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).

Extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).

The H-ALPHA 7nm filter is the most popular narrow-band filter that allows a 7nm bandwidth centered on a 656nm wavelength.

The LRGB filter kit is designed for maximum contrast and with extremely high gradients for a clear differentiation of light colors

• Baader MaxBright® II Binoviewer with adapters to T-2 and Zeiss micro-bayonet in a padded carrying case
• 27mm prisms with 26 / 25,5mm clear aperture, for all 1,25"-eyepieces – up to focal lengths of 35mm
• Ergonomically designed ClickLock® eyepiece clamps with diopter adjustment
• Baader Astro T-2 System™ connector thread (M 42 x 0.75) and Zeiss micro-bayonet for the shortest possible connection to (almost) all existing telescope systems
• Optical tube length: 110 mm (+/- 1 mm tolerance)
• with special accessories:
• Glasspathcorrector 1:1,70 for Baader-Binoviewer with T-2 thread (MaxBright II® and MaxBright®) (#2456316, € 96,-)
• Baader Nose piece 1¼" / T-2 (T-2 part #14) (#2458105, € 24,-)

The advantage of the L-eXtreme filter is that there is no transmission between the H-beta and OIII lines, as there is no nebula emission lines there. In this case, it isn't letting light pollution come through so that maximize nebulas signal and make the sky background darker while imaging. The L-eXtreme filter should better isolate the emission lines only and better protect from light pollution.

The LRGB filter kit is designed for maximum contrast and with extremely high gradients for a clear differentiation of light colors

The LRGB filter kit is designed for maximum contrast and with extremely high gradients for a clear differentiation of light colors

Extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).

Extra narrowband SII-CCD 6.5nm filter (Sulful II for CCD) is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).

Bester H-alpha-Linienfilter für die Astrofotografie von Emissionsnebeln mit höchstem Kontrast und der Wiedergabe zartester Nebeldetails.

♦ schmalbandiger (<=7 nm) Linienfilter für wichtige Nebellinie
♦ bevorzugt für CDD-Kameras mit Full-Frame-Transfer-Technik
♦ 2 mm dick und somit homofokal mit vielen anderen Filtern von Optolong
♦ Interferenzfilter
♦ feinoptisch poliert
♦ mehrschichtig hartvergütet - reflexfrei und weitgehend kratzfest

The IMX533 is a 1-inch, 9MP CMOS image sensor in a square format with a 3.76 um pixel size, capable of producing frames at 20 frames/sec in 14bit mode.
Read out noise is as low as 1.0e which makes it comparable to SCMOS or EMCCD sensors and highly suitable for high definition, low noise imaging.

• True 5MP sensor to capture and save high-resolution images and videos of your specimens
• 5-Element IR cut high-quality glass lens ensures sharper images
• 20x to 200x powers, great for low-power observation of 3D specimens (Note: Final magnification determined by monitor size)
• Professional, adjustable height stand included for hands-free operation
• 4 foot USB 2.0 cable for easy maneuverability when viewing large surfaces
• Intuitive software with measuring features
• Windows and Mac compatible 

Artesky 70A 12V lithium battery - Ideal battery to power your equipment even outside the home

Artesky 48A 12V lithium battery - Ideal battery to power your equipment even outside the home

Artesky 35A 12V lithium battery - Ideal battery to power your equipment even outside the home