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Posts Made By: William Green

June 16, 2002 05:23 PM Forum: Celestron

November 20, 2002 01:21 PM Forum: Equipment Talk

Newtonian

Posted By William Green

I would like, I think, to put a good-to-high quality Newtonian reflector onto my G-11 mount. Who makes suitable Newtonian OTA's these days? How about suitable rings?

Thanks!

January 3, 2003 09:28 AM Forum: Equipment Talk

TEC 140?

Posted By William Green

Who has one of these beauties? How is it performing for you?

Thanks!

Bill G.

January 12, 2003 10:44 AM Forum: Astro-Physics

A-P dew shields

Posted By William Green

Pardon me for asking a couple of dumb questions:

First, on the newer A-P refractors, does the dew shield come completely off the optical tube, or does it merely slide back and forth on the optical tube?

Second, when fully extended, does the dew shield droop to any noticeable extent?

I'm just curious.....

Bill G.

March 6, 2003 09:01 AM Forum: Equipment Talk

Panoptics

Posted By William Green

I have heard that the TeleVue 35mm Panoptic eyepiece has pincushion distortion. Is it noticeable when observing? If so, why would anyone want to observe with it? Do all Panoptic eyepieces have this pincushion distortion?

Bill G.

April 4, 2003 10:23 AM Forum: Refractors

TEC Glass?

Posted By William Green

Does anyone know what kind of glass TEC uses in its refractors and Maks? Is it Russian glass? Japanese? Other?

Thanks!

Bill

April 4, 2003 10:26 AM Forum: Equipment Talk

TEC glass?

Posted By William Green

Does anyone know from where TEC gets the glass it uses in its refractors and Mak-Casses? From Russia?

Thanks!

Bill G.

June 12, 2003 05:36 PM Forum: Solar System Observing

Jovian color?

Posted By William Green

Can much color be seen on Jupiter with a 6" apo? 7" apo?

September 10, 2003 11:24 AM Forum: Refractors

Japanese refractors

Posted By William Green

Which Japanese-brand refractor is considered the best by Japanese amateur astronomers? Takahashi? Pentax? Other?

September 29, 2003 05:53 AM Forum: Takahashi

Tak FS Series & Terrestrial Observing

Posted By William Green

Has anyone noticed spurious color through these telescopes when observing terrestrial objects during the day?