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Old 03-04-2017, 08:10 PM
DJT (David)
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DJT is offline
 
Join Date: Nov 2011
Location: Sydney
Posts: 1,452
STL 6303e v 11000M conundrum. Thoughts?

I am in a position where I will be able to swap my STL6303e for an STL11000 but am dithering. The intent is to put one of them on the back of the FSQ106n

The QE on the 6303 is around 40-50% higher than the 11000 which tops out around 50% but the blooming is a nuisance. I stopped RGB imaging from Sydney a while ago, focussing on NB but if I go out to the dark site the LP issues would be resolved and I will hopefully capture some of the faint stuff.

However, to get the faint stuff I would shoot longer than I would for RGB in Sydney. With the 6303 the blooming will slay me, especially on the faster scope.

I will keep the RC in Sydney and carry on with the NB but probably try a different CCD.

So, 6303e v 11000 on the back of the FSQ. What am I missing here? Both are running at an image scale of 3.5 but the 11000 would make better use of the large flat field but has a lower QE?

Any guidance would be greatfuly accepted.

Ta

Last edited by DJT; 03-04-2017 at 10:58 PM.
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