Canon 20d long ago - and Canon 5dii right now - but I don't use it for astro imaging due to all the issues I cite. The only value it has for me is the larger sensor. I will add the 5dii to my signature.
With the canon 20d I was using ImagesPlus and there was a banding problem that caused trouble for a lot of people. People blamed the sensor and bought new cameras to fix the problem - but I recognized the noise behavior they described could not be a problem in the sensor and instead had to do with how the raws were being converted.
It is described here from I guess 2009 where I am credited:
In cloudynights threads from back then I was mainly focused on getting the most from dslr's - but when I switched to astro cameras there was no reason to go back.
There is an image of m95 and m96 I did with the 20d and EdgeHD8 at f/10 - and that was quite painful and required the fixes to ImagesPlus - but it came out pretty well and is in some of the Celestron documents on EdgeHD since it was a very early dslr image with EdgeHD.
Much of what I'm describing here can be seen by inspection in a series of images with any dslr. If you see things changing - as shown above - you know a single dark master won't work without some kind of scaling or matching. And if you see gradients also changing - then you know a single dark master combined with a global scaling won't be effective.
I don't know why these concepts wouldn't be obvious - and I have no idea why people would ignore the role of noise and assume more signal is always more better.
You think these concepts are obvious?
The original poster asked if there was any consensus on the question of LENR and latest research from the ap community.
I don't see any quotations on scientific research from either side here, neither your LENR pro side, nor my anti-LENR side. I see anecdotal testimonials. Mine included. Yours included. Jon's included.
It should be pretty obvious from the posts in this thread that there isn't any consensus.
This reminds me of a zen parable:
"The student Doko came to a zen master and said: "I am seeking the truth. In what state of mind should I train myself, so as to find it?"
Said the master: "There is no mind, so you cannot put it in any state. There is no truth, so you cannot train yourself for it."
"If there is no mind to train, and no truth to find, why do you have these monks gather before you everyday to study zen and train themselves for this study?"
"But I haven't an inch of room here," said the master, "so how could the monks gather? I have no tongue, so how could I call them together to teach them?"
"Oh, how can you lie like this?" asked Doko.
"But if I have no tongue to talk to others, how can I lie to you?" said the master.
Then Doko said sadly, "I cannot follow you. I cannot understand you."
"I cannot understand myself" said the master.
I guess the best we can do is tell the original poster to try it both ways for himself and see what works with his individual camera.
Edited by Jerry Lodriguss, 03 October 2018 - 11:57 PM.