Hi Adrian,
I used my standard set up 1250mm FL at f6.3 approx. 53 in the stack,
unbinned (I must have left it to it and gone in for a cup of tea!)
and of course my dark sky. (I am sorry but for me here mag 17 is
quite easy I'm afraid)
I did not intend to but I had an IRB filter on as well (I had done
some mods and when I went to remove the filter, I could not get
focus. So I had to replace it. That little extra thickness of glass
made just enough difference.
Robin
--- In QCUIAG_at_yahoogroups.com, "Adrian Jones"
<universalconstant_at_h...> wrote:
<em class="quotelev1">> Noooo, Robin, I think I'm getting to like this remote-operation-
from
<em class="quotelev1">> warm-room lark too much!
<em class="quotelev1">> Thanks for your comments on the images. I was trying to emulate
your
<em class="quotelev1">> great shot of the QSO but struggled with a background/ noise level
<em class="quotelev1">> only a few counts lower than the subject, and too small an image
<em class="quotelev1">> scale. (What f/ratio were you using btw?) Some rather extreme
<em class="quotelev1">> processing and enlargement pulled them out but at the cost of
rather
<em class="quotelev1">> distorted looking star 'points'! I'm now even more impressed by
what
<em class="quotelev1">> you achieved.
<em class="quotelev1">>
<em class="quotelev1">> Adrian
<em class="quotelev1">>
<em class="quotelev1">> --- In QCUIAG_at_yahoogroups.com, "niborl2000" <robin_at_l...> wrote:
<em class="quotelev2">> > Congratualtions on the mod Adrian,
<em class="quotelev2">> >
<em class="quotelev2">> > You will have to do the USB mod now so you can go and sit out
under
<em class="quotelev2">> > the stars again;-)
<em class="quotelev2">> >
<em class="quotelev2">> > Nice separation in the double quasar.
<em class="quotelev2">> >
<em class="quotelev2">> >
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