Stefan Lilge wrote:
NGC 6675 is situated in Lyra. The object being quite small I used the f/6.3
reducer with only a short distance to the camera, which gave a focal ratio
of f/9 (which also means that the "normal" focal lenght with the Baader
Steeltrack focuser installed is probably more like f/11 or f/12).

Taken from the middle of Berlin with a 10" Meade ACF at f/9 on a G11 mount,
SXV-H9 camera, 33x5 minutes.

The picture can also be found at
http://ccd-astronomy.de/temp2/6675-33x5gut.jpg

Stefan

I don't even have this one on the to-do list. So it must be small. In
any case it looks like one to pursue if I ever get 1x1 binning seeing.
Rare this time of year but not as much when Lyra is well placed in the
early fall.

Only small right now on my list are Arps. Most near the meridian right
now are too far south so in an Arp Gap from my declination. Still have
a dozen or so to process. Can't seem to get motivated. I like taking
but not processing so there's always a lag and a lot in the to process
folder.

Usually I hear if you don't get the spacing ot the reducer right it
introduces all sorts of problems. How do you avoid this? Not using one
I'm pretty ignorant here. So it becomes a tele-extender if the spacing
is small enough? f/11 would be greater than native for the ACF series.

Rick

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Third character is a zero rather than a capital "Oh".