Quote:
Originally Posted by WattleHill
Varangian, Do you use a coma corrector on your setup? I have experienced this "sea gulling" effect on the extreme FOV prior to installing a CC. I also used to get this effect on earlier scopes (10" and 12" GSO dobs)
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Hi John, I have a CC and it does fix the majority of the problem I had with the ES 82 14 mm. My advice was based on use of the 14 mm 82 without a CC however. There are plenty of EPs out there around 14 mm that you can use on a fast newt without a CC - even though many Dob owners will not use much above this FL without one.
My original advice was based on my personal experience of the ES 82 14 mm with a fast newt. I purchased it under the assumption that the entire 82 ES line was very good but when I tried it in the 4.9 not only did I see sea gulling across the outer 25% but also blurred vision. At first as suggested I thought it was my scope so I collimated about 3 times and tried again - same problem. Then I started to panic about my eyes! I jumpoed on line and found a plethora of reviews on this EP in fast newts and 95% of them recommended to stay away.