refractor design

"Jim Beam" wrote in message
...

My friend says he can control his AP900 with PDA, like Palm Tungsten, but
I cannot give up on my dream to control my AP1200 with my Intellivision. I
think the Intellivision hand paddles are ahead of their time and the
cartridge interface is perfect. I have crafted a series of 27 cartridges so
far, which cover almost 30 objects in the region between Pollux and Castor.


I think you need lithium real fast. Bipolar disorder has nothing to do with
polaris!

Subject: refractor design
From: "Mike"
Date: 6/19/04 8:26 AM Pacific Daylight Time
Message-id: kWYAc.4750$7d2.2855@clgrps13



Good optics requires good mechanicals to make them reach their full
potential.

jon

You haven't explained why. I need to know why.

*****************************
You also need super seeing for good optics...

Chas P.

Subject: refractor design
From: "Mike"
Date: 6/19/04 8:26 AM Pacific Daylight Time
Message-id: kWYAc.4750$7d2.2855@clgrps13



Good optics requires good mechanicals to make them reach their full
potential.

jon

You haven't explained why. I need to know why.

*****************************
You also need super seeing for good optics...

Chas P.

"Mike" wrote:

Baffles dont make images, lenses do. Baffles hide partially illuminated tube walls from your sight. 3 baffles, 6 baffles, a million baffles. You want the least amount of baffles that do the job: hide the tube wall from your sight. Once the tube wall is hidden, extra baffles accomplish nothing.

Crappy refractor hardware (like Synta makes) generally works for holding an eyepiece in the approximate position for good viewing, refractors are pretty forgiving at Synta type magnifications. Throw a chromacor in the mix and Syntas generally inferior hardware quality is no longer enough to hold the entire system in collimation adequately.

Good hardware, like an Astro-Physics refractor, holds the lens and focuser in very precise alignment, this lets you get the most out of everything, like seeing concentric fresnel rings in star tests at 400 - 600 power. Super high power reveals more subtle problems and errors. If you have a Synta, you probably aren't going to be viewing planets at 400x anyway, so again the lower quality level of their components isn't much of an issue. If you've got a $4500 lens up front on the other hand, then it's nice to have everything held in alignment and concentricity as only a well built refractor can do.

JB

"Mike" wrote:

Baffles dont make images, lenses do. Baffles hide partially illuminated tube walls from your sight. 3 baffles, 6 baffles, a million baffles. You want the least amount of baffles that do the job: hide the tube wall from your sight. Once the tube wall is hidden, extra baffles accomplish nothing.

Crappy refractor hardware (like Synta makes) generally works for holding an eyepiece in the approximate position for good viewing, refractors are pretty forgiving at Synta type magnifications. Throw a chromacor in the mix and Syntas generally inferior hardware quality is no longer enough to hold the entire system in collimation adequately.

Good hardware, like an Astro-Physics refractor, holds the lens and focuser in very precise alignment, this lets you get the most out of everything, like seeing concentric fresnel rings in star tests at 400 - 600 power. Super high power reveals more subtle problems and errors. If you have a Synta, you probably aren't going to be viewing planets at 400x anyway, so again the lower quality level of their components isn't much of an issue. If you've got a $4500 lens up front on the other hand, then it's nice to have everything held in alignment and concentricity as only a well built refractor can do.

JB

I think you need lithium real fast. Bipolar disorder has nothing to do with
polaris!

Actually Polaris is a nice binary systems..

jon

I think you need lithium real fast. Bipolar disorder has nothing to do with
polaris!

Actually Polaris is a nice binary systems..

jon

"Mike" wrote in message news:6YYAc.4752$7d2.1462@clgrps13...

"Jim Beam" wrote in message
...

My friend says he can control his AP900 with PDA, like Palm Tungsten,
but
I cannot give up on my dream to control my AP1200 with my Intellivision.
I
think the Intellivision hand paddles are ahead of their time and the
cartridge interface is perfect. I have crafted a series of 27 cartridges
so
far, which cover almost 30 objects in the region between Pollux and
Castor.


I think you need lithium real fast. Bipolar disorder has nothing to do
with
polaris!

Naw, look at his name. "Jim Beam" is what he was drinking before he posted.

Clear Skies

Chuck Taylor
Do you observe the moon?
Try http://groups.yahoo.com/group/lunar-observing/
And the Lunar Picture of the Day http://www.lpod.org/
************************************

"Mike" wrote in message news:6YYAc.4752$7d2.1462@clgrps13...

"Jim Beam" wrote in message
...

My friend says he can control his AP900 with PDA, like Palm Tungsten,
but
I cannot give up on my dream to control my AP1200 with my Intellivision.
I
think the Intellivision hand paddles are ahead of their time and the
cartridge interface is perfect. I have crafted a series of 27 cartridges
so
far, which cover almost 30 objects in the region between Pollux and
Castor.


I think you need lithium real fast. Bipolar disorder has nothing to do
with
polaris!

Naw, look at his name. "Jim Beam" is what he was drinking before he posted.

Clear Skies

Chuck Taylor
Do you observe the moon?
Try http://groups.yahoo.com/group/lunar-observing/
And the Lunar Picture of the Day http://www.lpod.org/
************************************