Thread: Orion Stratus
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Old 14-08-2006, 12:37 PM
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janoskiss (Steve H)
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I'll second John's recommendation on getting the 8mm Stratus instead of TV plossl. The 8mm PL has painfully short eye relief. The 13mm Stratus also makes for a very nice and comfy planetary EP for a typical Dob in a good barlow (e.g., Orion Deluxe, Televue). The very similar (some say slightly better) Hyperion EPs are worth considering also. I noticed that MyAstroshop has started selling them recently.

You might also like to consider the similarly priced 8.5mm Pentax XF. Compared with Stratus you get pros: better contrast, sharpness and brightness (but the Stratus is already v. good), no astigmatism at extreme edge of FOV; cons: slightly reduced FOV and comfort (due to superior eyecup on Stratus).

The Meade 5000 Plossls (i.e., the 14mm and 26mm I compared) with a smaller 60 degree FOV exhibit somewhat more near-edge astigmatism in fast scopes than the Stratus EPs. The shorter focal lengths of the meades are nowhere near as comfortable either.
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