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Posts Made By: Mark Holden

October 9, 2006 02:02 PM Forum: Astro-Physics

Mach1gto - first light

Posted By Mark Holden
A good friend got one of the very first Mach1 mounts, and as luck would have it, he doesn't have the scope he'll be using on it yet, so I am getting to break it in for him.

Last night was first light for it. We put my TMB 115 CNC on it, and since it was a nearly full Moon, I put the ST2k on as soon as I was star synced.

It is a little noisier than the 900 and 1200 mounts. The software for the keypad hasn't been updated to show the Mach1 as an option yet, but it worked fine with the keypad thinking it was an AP1200.

Imaging could become boring with this mount. You set everything up, tell it what to do, and it just does it. Flawlessly.

It's an incredibly nice mount.


October 9, 2006 02:14 PM Forum: APM

Re: Recommended Maintainence for APM TMB 180

Posted By Mark Holden
Taking apart the lens to clean between the elements is a pretty serious undertaking, and I doubt anyone would do it unless there was a significant problem.


December 6, 2006 03:59 PM Forum: N.A.S.A.

Water on Mars

Posted By Mark Holden
Photos taken in October appear to show Mars has had water flowing on it's surface since we first started imaging the planet.
(edited to replace changed link)
http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=420833&in_page_id=1770

December 7, 2006 06:27 PM Forum: Chinese Optics Imports

Planet Hunter Design Info available on line

Posted By Mark Holden
Thomas Back posted the spots and design information about the 80mm Planet Hunter, and a fully optimized 80mm/11 achromat in the photos section of the BO Refractors Yahoo Group.


January 9, 2007 10:14 PM Forum: AstroMart FAQ

Anyone else having to log in for every page?

Posted By Mark Holden
My ISP at home was sold, and changed my IP address and now I'm having to log onto Astromart for every single page I view, even if I tell AM to keep me logged in.

Is this an AM problem, or is my ISP doing something funky?

To clarify, I'm not leaving the AM system - if I click on a forum name, I'll need to sign in. If I then click on one of the listed messages, I'll need to sign in again.


August 16, 2007 04:57 PM Forum: Digital SLR AstroPhotography

Re: Cancel

Posted By Mark Holden
Your account settings for email under "account menu" are probably set to monitor this forum.

This link should take you to the place where you can change your settings:

https://www.astromart.com/myaccount/forumsmonitoring.asp

September 10, 2007 06:10 PM Forum: Astro-Physics

Re: 140mm f/7.5 Notification

Posted By Mark Holden
I got on the list on Saturday at NEAF and expect to get mine in October.


March 15, 2005 11:32 PM Forum: Equipment Talk

No more small TMBs

Posted By Mark Holden
The "German" TMB's have been available through Markus or Thomas.

My understanding is Thomas will be concentrating on the larger ones as he's still a one man shop, and it'll allow him to devote his time to more profitable work.

The smaller ones will still be available through Markus.


March 31, 2005 12:44 PM Forum: Telescope Making

Mirror recoating that won't bankrupt me

Posted By Mark Holden
It's across the country, but my astronomical society (bmas.org) had it's 16" mirror recoated by Majestic last summer. They did a beautiful job and the cost was quite reasonable. I think it was $200 for the primary with the secondary.


April 19, 2005 04:45 AM Forum: Refractors

Sky 90 or TMB 80

Posted By Mark Holden
Yang Shuai said:

I am looking for a small portable apo refractor. I am wondering whether I should get the sky 90 with its 10mm advantage in aperture or TMB 80 with its perfect color correction. How do they compare under the stars?

I've heard APM will be coming out with a 95mm with a TMB apo objective. You might check with Markus to see when it's due out and what it's likely to cost.


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