I am experiencing what appears to be a reflection in my solar images when imaging close to the limb. It only becomes evident when I perform a strong stretch in PP to enhance prominences or if I crank the gain in the camera.
My imaging train: 127/1200 acro, Astronomik L3 UV/IR cut, quark Chromosphere, Apollo M-MAX (tilted to eliminate newton rings)
Here what I see:
What I tried:
- tilted the UV/IR cut
- flocked all the extender before the quark and camera nosepiece
- sealed all joints with dark electrical tape
The reflection rotates with he camera, so I am assuming it is something that is happening between the quark and the camera, or directly on the camera sensor or glass. Moreover, if I add spacing between the quark and the sensor by adding a 1.25" extra extender, the reflection changes shape like it is changing focus point , see below with an extra 2cm extender screwed in front of the camera nosepiece
Any ideas/advice?
thanks
Reflection
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Re: Reflection
Reflections are a pain in the neck, have you tried moving the camera outwards a few more centimetres. I found to remove a reflection I had to insert a 4cm distance to remove it.
Alexandra
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Re: Reflection
Try removing the silver 1.25" nosepiece off the Quark.
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Re: Reflection
Yes, did already with no luck
Correct, that helps spread the reflection so it becomes less impacting
Since the relfection is rotating with he camera I suspect it's the sensor glass that is causing it
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Re: Reflection
Have you a polarising filter you can try on the nose of the camera, that should shift it.
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Re: Reflection
As Alexandra said, reflection is really a pain...
Try tilting the Astronomik filter, try a red or Ha filter instead of the Astronomik IR/UV cut. Try changing the distance between the Astronomik and the Quark.
Try tilting the Astronomik filter, try a red or Ha filter instead of the Astronomik IR/UV cut. Try changing the distance between the Astronomik and the Quark.
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Re: Reflection
Tried all the above except the polarizing and Ha filters that I don’t have.
We are focusing on the blocking filter but the fact that the reflection is rotating with the camera makes me think it’s the camera sensor glass itself, maybe I’m wrong…
Changing the distance of the camera from the quark nosepiece appears to be the only action that affects the reflection. There is a sweet spot however, too far and it becomes intense again
We are focusing on the blocking filter but the fact that the reflection is rotating with the camera makes me think it’s the camera sensor glass itself, maybe I’m wrong…
Changing the distance of the camera from the quark nosepiece appears to be the only action that affects the reflection. There is a sweet spot however, too far and it becomes intense again