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The more I use my two Panoptics, the 19 and 27mm, the more dissatisfied I get about the off-axis astigmatism I see them display in my f/5 Dob. The 24mm has an unconfirmed reputation for being the odd one out from the otherwise scaled design Panoptic series, and having better edge correction than the rest. I have no idea if this is true. I would not buy another Panoptic unless one came up for a good price 2nd hand. In f/6 and f/5 Newts I much preferred the 22mm LVW to the 19 and 22mm Panoptics I compared it with.
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