Quote:
Originally Posted by leon
Now that I have modded the 5D I expect that I would have to take, new flats, bias, and dark frames to suit the new filter.
Would this be correct, or can I use the ones I took prior to replacing the filter.
Thank You.
Leon 
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Hi Leon,
Don't you take new flats each time you reconnect the 5D to the scope?
The orientation changes when you re-attach it.
You need to, unless the camera is permanently on the FSQ all the time.
As for darks/bias, I don't think the mod changes the dark noise or bias noise.
I usually like to take fresh darks/flats with every session though, but that's just me.