Astromart

October 10, 2008 06:19 AM Forum: CCD Imaging and Processing/Solar System

Neximage with a Meade ETX90, what was it like

Hi All Astro Nuts
Has any body used a Celestron Neximage with a Meade ETX90, what was the result like?
An Astro Nuts
Vars

October 13, 2008 05:05 AM Forum: Solar System Observing

a hypos ethical question

Posted By Vaclav Novotny

8) This is a hypos ethical question just in case I come into some money (I wish)
I live in the outer suburbs, light pollution is not too bad and I can see 5mag stars
What would be the best telescope I could buy, up to $20000 for planetary observation and imaging from here
Vars

October 24, 2008 06:24 AM Forum: Eyepieces

GSO 1.25" Apo Apochromatic Barlow

Posted By Vaclav Novotny

Hi All
How good are the GSO 1.25" 5x Apo Apochromatic and GSO 1.25" 2.5x Apo Apochromatic Barlow, cant find much on them
Vars

March 7, 2009 10:21 PM Forum: Eyepieces

GSO 1.25" Super Plossl eyepiece compared with the

Posted By Vaclav Novotny

Hi All
How good are the GSO 1.25" Super Plossl eyepiece compared with the Meade 4000 series 1.25" Super Plossl eyepiece
I am going to use them for casual viewing
Vars grin

March 10, 2009 06:30 AM Forum: Equipment Talk

Advantage of using a 2" diagonal

Posted By Vaclav Novotny

Hi All
What is the advantage of using a 2" diagonal over a 1.25" diagonal in a 80mm F7.5 scope other than being able to use 2" eyepieces?

March 18, 2009 05:58 AM Forum: Equipment Talk

Focal Reducer for visual observation

Posted By Vaclav Novotny

Hi All
I am thinking of getting a .5 Focal Reducer for my ETX90 Has anybody used a Focal Reducer for visual observation

March 21, 2014 02:24 AM Forum: Equipment Talk

APPTURE FEVER

Posted By Vaclav Novotny

Hi All
I was looking into eye sensitive and found that a light or star has to be 2.5 approximately brighter than the reference to notice a difference this means a scope has to be
2.5 times bigger than your previous one to notice any difference that means if you start with a 60mm scope you would need a 100mm your next step up is 160mm then 250mm
I have a 100mm and was going to get a 127mm but it looks like I should be going for a 200mm to get some real change
Am I wrong ?
:S

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Posts Made By: Vaclav Novotny

Neximage with a Meade ETX90, what was it like

a hypos ethical question

GSO 1.25" Apo Apochromatic Barlow

GSO 1.25" Super Plossl eyepiece compared with the

Advantage of using a 2" diagonal

Focal Reducer for visual observation

APPTURE FEVER

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