It is a mite on the healthy side + the sweet spot isn't huge before field curvature, but it handles chromatic aberration nicely, nicely. Very relaxing view for the eyes. When I view through I feel naught save an extention at 8.5X. Pan/scans w/ease for me.
Celestron M2 f/5.4 100mm ED-Manfrotto 516 fluid head w/140mm sliding plate
SLV 50* 4mm-- HD-60* 4.5mm-- UWA 82* 5.5mm-- SLV 6mm-- Luminos 82* 7mm-- MWA 100* 10mm-- Luminos 15mm--TV Nagler 50* 3mm/180X - 6mm/90X Zoom