From the above mentioned leaflet I can see that even though I dabble at astrophotography, this will not be useful to me, as I do a lot more nature and landscape shooting and they say, "shooting normal subjects with this camera is not recommended." The hydrogen-alpha wavelength is good for extended objects such as nebulae, but you really need to stick your camera on a telescope to get satisfactory magnification of the nebulae. So I think this is not for fellows who stick their camera on a tripod. Instead, it will be for those who mount it on the back of a telescope, which is fairly niche.
- The EOS Ra is a version of the EOS R designed for astrophotography. This camera has approximately four times
the transmittance of hydrogen-alpha light (656 nm) as the EOS R.Photographs of subjects that reflect a lot of infrared light will thereforeappear redder than they actually are. Also, as it may not be possible to obtain an appropriate color balance or uneven colors may result,shooting normal subjects with this camera is not recommended.
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