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Brand: Player One
Uranus-C is (IMX585) camera developed by Player One Astronomy, which adopts the newest Sony IMX585 1/1.2” format color sensor. The 2.9um pixel size accommodates a well depth of 38.8Ke with a total of 8.3MP (the resolution is 3856*2180), and the diagonal is 12.85mm.
Filter OIII 6.5nm Serie - OPTOLONG
Optolong OIII 6.5nm filter
This filter is an additional 6.5 nm narrowband OIII filter designed for observing nebulae with a wavelength centered at 500 nm and reduces the transmission of certain wavelengths of light.
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6.5nm OIII Narrow Band Filter
This filter is an additional 6.5 nm narrowband OIII designed for nebula observation with a 500 nm centered wave that matches the OIII emission lines and reduces the transmission of certain wavelengths of light, especially those produced by artificial lights including mercury vapour, both high and low pressure sodium vapor lamps and unwanted natural light caused by the emission of neutral oxygen into our atmosphere (eg Skyglow) .
The OIII emits from 495.9 nm and 500.7 nm, so it is a blue-green color filter, therefore many images of planetary nebulae and supernova remnants are only taken with H-ALPHA and OIII filters; showing superb structural details while maintaining natural colors, the image thus taken looks like an RGB image.
Main use and performance
Suitable for observing most emission nebulae, planetary nebulae and supernova remnants.
Narrowband imaging can be obtained by combining the filters of the SHO set (H-ALPHA, OIII, SII), in lunar and light pollution conditions, in this way the equipment does not remain stationary for weeks .
The OIII filter does not eliminate the effects of light pollution and does not increase the brightness of the photographed object, but rather increases the contrast between the nebula and the night sky, making image processing easier.
This 6.5nm narrowband OIII filter is designed to be used in filter wheels, in filter holder drawers or directly on the camera (not valid for those not mounted in the cell)
- Schott substrate material
- Thickness 2.0mm
- Surface quality: 60/40
- Fine optical polishing to ensure accurate 1/4 wavefront and <30 seconds parallelism on both surfaces
- OIII filter has 80% transmission, OIII line is 500 nm
- Precision out-of-band blocking
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Brand: ASKAR - Sharpstar
Brand: ASKAR - Sharpstar
A Duo band 6nm filter of the Ha and OIII line usable on Astro color cameras for taking pictures of nebulae