Image of the day

Captured by
Byron Davies

M-20 Trifid Nebula

About Astromart

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: Malc Shedden

June 6, 2004 09:09 PM Forum: Coronado-Lunt-DayStar Solar Filters

Re: Imaging Question

Posted By Malc Shedden
Isn't that a *good* thing??

All that gets to the 'film' plane should be RED light, so in a perfect world, you should not have a green or blue image at all, unless I'm missing something.

Malcolm

June 8, 2004 11:39 AM Forum: Coronado-Lunt-DayStar Solar Filters

Transit - Richmond, VA

Posted By Malc Shedden
Foggy!! sad

October 7, 2004 12:19 PM Forum: Equipment Talk

Re: overseas equipment like this available in US

Posted By Malc Shedden
Looks a lot like a Williams Optics diagonal:

http://www.buytelescopes.com/product.asp?pid=3229

October 19, 2004 06:35 AM Forum: Coronado-Lunt-DayStar Solar Filters

Anyone using an internal etalon?

Posted By Malc Shedden
Was using a TV102 with my 90mm AS-1 filter, but moved to a Sky 90 'cos I couldn't reach the t-max tuner while viewing(!). Coronado offer an internal 40mm etalon module for this scope to give < 0.5a bandpass - is there anyone out there who can comment on the performace of this combo?

Tia

Malcolm.

May 9, 2010 01:20 AM Forum: Equipment Talk

What mount is this?

Posted By Malc Shedden
I was looking for a reasonable EQ mount for my daughter's 90mm Orion refractor, and came across this on that auction site for $230 shipped. They call it a 'CG-5' *type* mount, mfr 'Twinstar' - so question is: is it a CG-5 or ???. Has dual axis (AA battery drives, polar scope etc. Almost looks too good for the $$$.

This is the only pic, so sleuth away!

All input appreciated!

Malcolm

October 31, 2011 01:20 PM Forum: Equipment Talk

Resolving power - terrestrial / target shooting

Posted By Malc Shedden
Recently my brother asked me what kind of scope he could get to resolve 0.30 inch bullet holes in paper targets at 500 yards. He mentioned some 20-60x 80mm ED spotter, but I have serious doubts about that.

Anybody have an opinion on this? Is it even possible?

Would a 100-120mm refractor at f8-f10 be capable, or maybe a 5" Mak?

Thanks for any ideas

Malcolm

July 26, 2002 06:29 PM Forum: Equipment Talk

Thousand Oaks Type 2 filter

Posted By Malc Shedden
Get a Baader Astrosolar fim filter instead, the views you get with the film are far superior to glass filters IMHO.

You can get the film on its own from Astro-Physics (and make your own cell), or Kendrick sells off axis filters made with the film (and the film itself).

The film is available in Visual and Photo only grades.

look at: http://www.kendrick-ai.com/n_solarfilters.html

September 5, 2002 12:55 AM Forum: Equipment Talk

Selling my MK67-what is a reasonable price?

Posted By Malc Shedden
Do a search in the Ad Archives and see what similar scopes have been going for...

(You can find the ADVANCED SEARCH link on the menu on the left of this page) <---- over there!!

Good luck,

Malcolm.

December 4, 2002 02:21 AM Forum: Equipment Talk

New Celestron GOTO GEM SCTs

Posted By Malc Shedden
with pictures/specs

8" http://www.buytelescopes.com/product.asp?t=&pid=5101&m=
9.25 http://www.buytelescopes.com/product.asp?t=&pid=5102&m=
11" http://www.buytelescopes.com/product.asp?t=&pid=5103&m=

January 15, 2003 03:30 PM Forum: Equipment Talk

Purchacing a telescope

Posted By Malc Shedden
While the C9.25 is great (I have one) I don't think the CG-5 mount will be up to astrophotography, however you could upgrade to a better mount later if you *really* want to get into astrophotography.

Funding Member

Sponsors


View all sponsors

Search