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Planetary Imaging Shutter Speed setting not working


gfunkernator
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I use a Canon EOS Ra and while in planetary imaging mode the planets are over-exposed.  Changing the shutter speed and/or ISO speed have no affect.  If I change the shutter speed to 1/20 while already at 5x zoom, the zoom resets back to full or native frame, still over-exposed.  Recording an avi+jpg combo at a set shutter speed of 1/20 the planet is still over exposed.  I even tried to disable max sensitivity in settings to no avail.  Please advise.

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Canon have what is called exposure simulation. It only works with TV mode, not BULB. I'm not sure if the mirrorless Canon have the ability to turn this option on/off but it's worth going through the camera menu to see if you see an "exposure simulation" option.

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I didn't try manually going into Tv mode on the camera.  Max sensitivity was disabled.  I usually go from frame and focus (from all night DSO imaging) to planetary just before the sun comes up.  I'll try setting Tv mode and see if it helps.  I did see the expsim appear in EOS Utility but never gave it thought.  

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