EXPLORE SCIENTIFIC Dark-Sky Filter 77mm Slim
Dark-Sky Filter 77mm Slim
- Dark-Sky Filter
- Contrast enhancer for Aurora- and Deep-Sky imaging
- Wide field imaging of the milky-way, time lapse and landscape
- Lightpollution damping filter
- Ellimintates the yellow light which can´t be done by any imaging processing software
- Black anodized filter housing
- 77mm filter thgread for foto lens
- flat design of only 4mm height (slim) - no vignetting
- Ideal also for use with wide field foto lens
- Made from optical glass with Neodymoxid
Product number:
0310260
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FAQ - Frequently Asked Questions
That is normal. Finder scopes are only used to make objects easy to locate. The image orientation does not matter for observation.
- Alt-azimuth: easy to use, moves horizontally and vertically
- Equatorial: enables precise tracking of objects with only one axis – ideal for high magnifications and astrophotography
- Moon: from 30 mm
- Planets: from 100 mm
- Deep sky: from 150 mm
Product information "EXPLORE SCIENTIFIC Dark-Sky Filter 77mm Slim "
Universal Dark-Sky Filter with 77mm thread for photo lens. Contrast enhancing filter for Aurora- and Deep-Sky imaging.
Especially during Aurora imaging the most important wavelength of 550nm (green) and 630nm (red) this filter let pass by 90%.
In comparrision to CLS filters, the Explore Scientific Dark-Sky Filter is blocking also the yellow Sodium (Na) wave at 590nm which elliminates Sodium-lamp street illumination from your picture.
This is very useful because the yellow light is always a partially mix of green and red light. Removing the yellow wave-length with any image processing software will always damping also the green and red coloring. For Aurory imaging this is of course not wanted.
At these days of increasing light pollution, the Explore Scientific Dark-Sky Filter is absolutely recommended in order to take pictures also from urban conditions.
Finally the slim housing design enables its use also with wide-field photo lens and doesn´t cause any vignetting.
Pictures at night taken by Bernd Pröschold - www.sternstunden.net
Test report: http://www.sternstunden.net/filter-testing.html
FEATURES
Especially during Aurora imaging the most important wavelength of 550nm (green) and 630nm (red) this filter let pass by 90%.
In comparrision to CLS filters, the Explore Scientific Dark-Sky Filter is blocking also the yellow Sodium (Na) wave at 590nm which elliminates Sodium-lamp street illumination from your picture.
This is very useful because the yellow light is always a partially mix of green and red light. Removing the yellow wave-length with any image processing software will always damping also the green and red coloring. For Aurory imaging this is of course not wanted.
At these days of increasing light pollution, the Explore Scientific Dark-Sky Filter is absolutely recommended in order to take pictures also from urban conditions.
Finally the slim housing design enables its use also with wide-field photo lens and doesn´t cause any vignetting.
Pictures at night taken by Bernd Pröschold - www.sternstunden.net
Test report: http://www.sternstunden.net/filter-testing.html
FEATURES
- Deep Sky Filter
- Contrast enhancer for Aurora- and Deep-Sky imaging
- Wide field imaging of the milky-way, time lapse and landscape
- Lightpollution damping filter
- Ellimintates the yellow light which can´t be done by any imaging processing software
- Black anodized filter housing
- 77mm filter thgread for foto lens
- flat design of only 4mm height (slim) - no vignetting
- Ideal also for wide field foto lens
- Made from optical glass with Neodymoxid
- Deep Sky Filter 77mm
- Dust protection case
| Batteries required: | false |
|---|---|
| Colour: | black |
| Extended warranty (years): | 10 |
| Field of application [Telescope-filter]: | Light Pollution Filter for Astrophotography |
| Filter thread size (mm): | 77 |
| Material: | Glass, Plastic |
| Net weight (without access.) (g): | 25 |
| Telescope filter type: | Nebula Filter |
| Total height (mm): | 4 |
| Total length (mm): | 79 |
| Total width (mm): | 79 |