@@. Posted July 23, 2010 Share Posted July 23, 2010 hello all, i have a SKYMAX-127 mak cass scope and was wondering what lens to purchase to give me the highest possible (decent) magnification, i already have a 25mm 10mm & 4mm lenses. or what other options are there if any Link to comment Share on other sites More sharing options...
brantuk Posted July 23, 2010 Share Posted July 23, 2010 You're scope has a focal length of 1500mm which with the 4mm ep will give a magnification of 375x which should be more than enough. What you see is affected by the "seeing" (astmospheric conditions) which in the UK becomes iffy much above 250-300x mag.Too high a magnification in poor seeing conditions will give not very pleasant views. I aim at about 80% of the manufacturers stated limit for my personal limit and that works well. What I advise you look for is "clarity of view". A good clear view will be a combination of good seeing, well collimated scope, quality of ep and optics. Get all those right and you'll be thrilled with whats visible.For better views a better quality ep would be a good start.Hope that helps Link to comment Share on other sites More sharing options...
Capricorn Posted July 23, 2010 Share Posted July 23, 2010 127 dia, 1500 FL = F/11.8I would say that the 4mm is completely and utterly useless to you.:eek:Smallest I suggest is 8mm, mag=187xIf there is a 7.5mm it would give the round number of 200x but I wouldn't expect either to be useable all of the time.For magnification and useability 8mm and 12mm and I will bet that the 12mm gets used more then the 8mm. Link to comment Share on other sites More sharing options...
pvaz Posted July 23, 2010 Share Posted July 23, 2010 The theoretical max for your scope is 254x so with the 4mm you already go way past that. On my 8" I never go above 300x as it dims objects too much and view quality drops.The best way to see more is to get decent conditions and to spend a good amount of time looking. Your eyes get used to the low light conditions and detect more detail after a while. Sketching is also a nice trick as you notice more details when you're trying to put it into paper. Link to comment Share on other sites More sharing options...
brantuk Posted July 23, 2010 Share Posted July 23, 2010 Lol Capricorn - I was trying to be tactful - 80% of 254 = 203x Link to comment Share on other sites More sharing options...
@@. Posted July 24, 2010 Author Share Posted July 24, 2010 thanks for the input all, i think i will maybe spend a few quid on a decent 8mm lens then Link to comment Share on other sites More sharing options...
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