Quote:
Originally Posted by Emuhead
So heres an interesting question:
https://www.baader-planetarium.com/e...stian-voltmer/
This shows an image taken with a Fuji XT3 on the front of a RASA 8, but if you look closely there are 90 degree diffraction spikes in the image... which made me question if this could have been taken with the Fuji? I thought those kind of diffraction spikes are created with dedicated astro camera power cables split at 90 degress, and not a fully self contained mirrorless camera body. Odd right? |
Light will diffract at the edges/corners of the camera if it protrudes in to the field of view. Since the central obstruction of the RASA-8 is 93mm in diameter, anything larger, like the 133mm wide Fuji XT-2 or XT-3 could create such issues, although I am a little surprised how sharp and symmetrical the spikes appear.