Horsehead with Borg paved with apo 125 7887, 15 are placed by 5 min with dark, flat and bias, again with the 40d. The collimation of the doublet is not perfect you make us your hand, it is still acceptable even if it leaves the slight reddish coloring on the edges of the brightest stars, unfortunately the focuser flexes a bit after tightening the locking screw I'll fix it .... ..
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