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Have to agree with you Paul. I don't have a dew heater, but I've got a dew shield. Last night I took the dew shield off to collimate and couldn't be bothered putting it back on afterwards. Half an hour later I couldn't figure out why my stars had gone all mushy. A quick flash of the torch over the corrector plate told me it was time to pack up!
After I took it inside I 'fanned' it with the dust cap till it dried up. Is that an OK thing to do?
It still amazes me why SCT (and Maks and SN's) makers still don't supply some sort of dew shield with the scopes! There aren't many refractors (NONE that I can think of!) or camera lenses sold without one! Even just a little shorty one to at least help prevent accidentally touching the corrector. It looks so precariously unprotected.
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