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Hi Garry.
You only have to limit yourself to the 32mm plossl if you want to stay with a 50° apparent field of view (AFOV).
Any eyepiece with a 27mm field stop (FS), the maximum for a 1.25" eyepiece, will give you the same maximum true field of view (TFOV) in your scope but at different AFOVs and magnifications.
As an example the TV 24 Panoptic has a FS of 27mm and an AFOV of 68°.
In your F1540mm Mak this gives you a TFOV of about 1° at a magnification of 64.
The 32mm TV plossl, with the same 27mm FS, gives you the same TFOV of 1° at a magnification of 48, and a 50° AFOV.
Up to a point most people prefer a wider AFOV.
Aslo in this case X64 will give you a darker sky background than X48 which should make the view better again.
So certainly consider those 70°s
gb.
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