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Posts Made By: Paulo martin

October 8, 2007 09:20 PM Forum: Equipment Talk

SC 10" vs. 6" newtonian.

Posted By Paulo martin
Hello,

A simple question: for planetary visual observations is the SC 10" best that the 6" newtonian reflector, there is very muchdifference in the image?

Thanks,

October 15, 2007 02:36 PM Forum: Equipment Talk

Cooling fan essential.

Posted By Paulo martin
Hello,
You think that a cooling fan is essential in a Maksutov-Cassegrain of 5.5" or 6" ?

Thanks,
Paulo

October 16, 2007 10:24 AM Forum: Maksutovs

Same price-5.5" vs. 6".

Posted By Paulo martin
Hello,
I am again!Decission..Decission..

For the same price(aprox.)I have a 5.5" OMC-140 F/14 of Orion Optics in UK standard version, Gregory variant, and a 6" F/15 standard version Intes Micro Rumak desing, the two without fan cooling. In this case 6" is best ?

Thanks,
paulo




November 2, 2007 03:59 PM Forum: Refractors

opinion on a good wide-field refractor.

Posted By Paulo martin
Hello,

I am searching a good wide angle refractor telescope.For wide vistas of deep sky.Any advice or opinion are welcome.

Thanks,
paulo


November 4, 2007 10:52 PM Forum: Reflectors

LB 16".

Posted By Paulo martin
Hello,

My question is if the LightBrige 16" is a good telecope for visual astronomy, planets and DSO, if it have good contrast and a optical quality .
Thanks,
Paulo

November 7, 2007 10:00 PM Forum: Deep Sky Observing

Minimun aperture and optimal magnification for vie

Posted By Paulo martin
Hello,

I like know which is the minimun aperture and optimal magnification for viewing the Merope Nebula in the Pleiades.
Thanks,
Paulo

November 14, 2007 09:45 PM Forum: Eyepieces

A good wide angle eyepiece.

Posted By Paulo martin
hello,
I like know a good wide angle eyepiece of 30mm focal aprox.Thanks,
Sincerely,

Paulo

December 6, 2007 10:18 PM Forum: Digital SLR AstroPhotography

canon 400D

Posted By Paulo martin
Hello,

I´m looking for a good digital reflex camera for start with the astropho. of wide angle, plnetaries conjuntion, venus and mercury in dawn and dust....and I like know if the Canon 400D model is a good camera, and some alternatives.

Thanks,

Paulo

January 27, 2008 10:39 PM Forum: Birding Optics and Photos

A recomendation for a good spotting scope.

Posted By Paulo martin
Hello,
I am looking for a good and small spotting scope, my question is if is best a scope with ED or fluorite model, I like the 60-70mm scopes.Any recomendation are welcome.

For curiosity: A 65mm scope of fluorite is best that a 80mm non ED or fluorite?

paulo

February 7, 2008 02:37 PM Forum: Birding Optics and Photos

Opinion on Kit Nikon ED50.

Posted By Paulo martin
Hello,
Anyone has experience with the kit of Nikon ED50?

Thanks,
Paulo

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