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Posts Made By: Bob Chester

July 24, 2002 10:25 PM Forum: Telescope Making

Curved Vane Spider

Posted By Bob Chester

Is anyone making a 180* curved vane spider as described in ATM Journal issue #11? Novak makes a curved spider but it doesn't curve the full 180*. Any sourses or ideas?

July 24, 2002 10:41 PM Forum: Equipment Talk

Barlow placement and magnification calc.

Posted By Bob Chester

As I understand, the power of a barlow changes with the distance from the eyepiece. How does one calculate the power when the barlow is placed in front of a diagonal?

October 5, 2002 06:18 PM Forum: Equipment Talk

Quality image erecting prism?

Posted By Bob Chester

Is there such a thing as a high quality image erecting prism in the 1-1/4" format or is it not necessary since most terrestial viewing is not done at very high powers. I own a high quality apo that I would like to use for eagle spotting and photography ( digital afocal ) and fear the run of the mill prism will degrade the image. Are my fears unfounded? Any recomendations are welcome.
Thanks in advance.
Bob

December 30, 2002 10:28 PM Forum: CCD Imaging and Processing/Solar System

image processing software

Posted By Bob Chester

I need some advice on software for processing afocal digital images. The only software I currently have is the the one supplied with the camera and it is very limited. I plan to purchase 'Images Plus' but note a lot of work is done in Adobe Photoshop. The full blown 'Photoshop' is not within my budget. Is 'Photoshop Elements' adequate or even necessary if I purchase 'Images Plus'?
Also, I recently downloaded the current version of 'Registax' and it crashes the whole system every time in final processing. Anyone else experiencing this? My system is old by todays standards. PII 350mhz Win 98se.

March 10, 2003 09:09 PM Forum: Pictures of Me and My Telescope and........

The scopes and I pt 1

Posted By Bob Chester

Hi, my name is Bob, and I haven't made an astro purchase in three weeks. My addiction includes a home ground 6" f/6.5 and a Tak FS-78 mounted on a home-made mount. The CG-4 on the Astro-Sky Eliminator is for when the FS-78 flies solo and there is a dob mount for quick looks with the 6".

pt 2 to follow
Bob

March 10, 2003 09:14 PM Forum: Pictures of Me and My Telescope and........

The scopes and I pt 2

Posted By Bob Chester

And 2 more home ground. A 10" f/4.8 and 4-1/4" f/4.5.
Thanks for letting me share.
Bob

March 30, 2003 05:03 PM Forum: Birding Optics and Photos

First Attempt Bald Eagle

Posted By Bob Chester

Here is my first attempt at digiscoping wildlife.
Tak FS78 / Vixen LV zoom at 8mm / Nikon 4500 at full 4X optical zoom. Range to eagle was 1/2 mile or more. Visible as only a b&w dot through 8x binocs. Any advice on digiscope focusing would be greatly appreciated.
Bob

March 31, 2003 08:51 PM Forum: Equipment Talk

Yet another source of eyepiece cases

Posted By Bob Chester

While wandering around a camping/hunting/fishing store (Gander Mountain) I spotted a row of pistol cases. Large assortment and price range. Below is pictured (along with my small Doskocil) the least expensive of the lot.Ten bucks.It's made to hold 4 pistols and measures approx. 11-1/2 x 16 x 5-1/2. Made by Plano, the tackle box folks. I own one of the famous Home Depot/Lowes/Menards alum cases and have to say I think this case is a step or two above it in quality. Mind me, it's no Doskocil or Pelican but definitely a good value.
Pistol cases, check'm out.
Bob

April 2, 2003 06:14 PM Forum: Birding Optics and Photos

Birders Beware (on the light side)

Posted By Bob Chester

A local Minnesota birder got an unexpected visit from the F.B.I. when concerned citizens reported a possible terrorist roaming the woods with a spotting scope.
Make sure you have your ID with and maybe a Petersons field guide next time you go birding. You never know......
Bob

April 8, 2003 11:11 PM Forum: Pictures of Me and My Telescope and........

Re: Me and my Big Tube

Posted By Bob Chester

Way cool!! I like it. Is that your grab & go Scope?
Bob

Mars party at Craig's house.