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#1
August 23rd 03, 09:08 AM
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Stacking barlow lenses?
I have a x2 and a x3 Barlow lens, what would be the effect of stacking
them?, has anyone tried it? thanks in advance for any advice Simon 
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#2
August 23rd 03, 12:55 PM
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Stacking barlow lenses?
Simon wrote:
I have a x2 and a x3 Barlow lens, what would be the effect of stacking them?, has anyone tried it? As long as they are good quality Barlows, there is not a problem with stacking two. I don't know anyone who has tried 3 -- but assuming x2 Barlows, one would begin to question the necessity of using what is effectively a very unwieldy x8 combination (surely anyone with 3 Barlows would already have a decent range of eyepieces?!?!?!) that unnecessarily introduces more glass and potentially more aberrations. Best, Stephen -- + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Stephen Tonkin | ATM Resources; Astro-Tutorials; Astro Books + + (N51.162 E0.995) | http://www.astunit.com + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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#3
August 23rd 03, 12:55 PM
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Stacking barlow lenses?
Simon wrote:
I have a x2 and a x3 Barlow lens, what would be the effect of stacking them?, has anyone tried it? As long as they are good quality Barlows, there is not a problem with stacking two. I don't know anyone who has tried 3 -- but assuming x2 Barlows, one would begin to question the necessity of using what is effectively a very unwieldy x8 combination (surely anyone with 3 Barlows would already have a decent range of eyepieces?!?!?!) that unnecessarily introduces more glass and potentially more aberrations. Best, Stephen -- + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Stephen Tonkin | ATM Resources; Astro-Tutorials; Astro Books + + (N51.162 E0.995) | http://www.astunit.com + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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#4
August 23rd 03, 07:16 PM
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Stacking barlow lenses?
"Simon" wrote in message ...
I have a x2 and a x3 Barlow lens, what would be the effect of stacking them?, has anyone tried it? You would get approx. a 6x barlow. And yes, I've tried it. No problem. Andrea T. My Astronomy Pages at: http://www.geocities.com/andreatax/index.htm
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#5
August 23rd 03, 07:16 PM
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Stacking barlow lenses?
"Simon" wrote in message ...
I have a x2 and a x3 Barlow lens, what would be the effect of stacking them?, has anyone tried it? You would get approx. a 6x barlow. And yes, I've tried it. No problem. Andrea T. My Astronomy Pages at: http://www.geocities.com/andreatax/index.htm
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