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The small a stands for astromodified: This camera is usually equipped with a filter that attenuates the red spectral range so that the sensor comes close to the human perception of color during daytime vision. For use in astronomy, this is a problem because the important H-alpha line, in which astronomical gas nebulae glow, also lies in range. This filter will be removed for the astromodification. The astromodified version of the DSLR therefore has a higher red sensitivity in the range of H-alpha or SII than the original version. This makes gas nebulae in the sky accessible for photography. Since these regions are often particularly extensive, the astromodified DSLRs can fully exploit their large sensor.
The many advantages of astromodified DSLR for astrophotography:
- Ideal for extended nebulae, thanks to large chip and high sensitivity in the H-alpha range.
- Built-in computer: You don't need a laptop or an external power supply - no cable clutter!
- Lots of accessories and versatile applications.
- Monitor with LiveView
The astromodification is being carried out by the company AstroHobby in Italy by replacing the original Canon filter. The following different versions of astromodification are available:
Baader Astromodification: The Baader Planetarium BCF filter, specially developed for this purpose in Germany, allows light with wavelengths of 420-680 nm to reach the sensor. This means a 4 times higher sensitivity for H-alpha than an unmodified camera.
Super UV/IR-Cut Astromodification: The Super UV/IR-Cut Filter works like the Baader Filter. However, the transmitted spectral range is further enlarged: From 400-700 nm all visible light is collected by your camera.
Full Range Astromodification: The camera becomes sensitive to light in the ultraviolet, visible and infrared ranges (starting at 300 nm). It is therefore ideal if you want to remain flexible. With additional filters, this camera can be used for normal daylight photography, pure infrared imaging or demanding astrophotography.
The scope of delivery of the astromodified camera is the same as that of the camera manufacturer: camera body, battery, charger, USB cable, manual.
Please note: For astromodification, the original packaging of the cameras is opened and photos are taken for testing purposes so that the counter is no longer zero. However, the cameras are of course not used. Used goods are expressly marked as such in our shop.