Astrophotographers hangout. Invite friends and notice chat bar on bottom.
It was great to see Neal Heacock "back in the saddle" - and for 4 straight nights! Watching him at work it seemed like he hadn't been away at all.
The skies were not great on any of the 4 nights, but most of us were shooting things barely above the southern horizon because around here this is the only chance we get to shoot them. Well, this year July should be good also.
There were 7 people (all imagers) and most stayed all 4 nights. Skill levels ranged from "master" (Neal) to…Continue
Added by Greg Marshall on June 16, 2015 at 9:10pm — No Comments
I got an 8" EdgeHD scope a while ago and have just finished development of a focus motor for it. I am now offering the "PerfectStar SCT" along with the PerfectStar Focus Controller. The PS SCT motor was developed specifically for the EdgeHD series and will be available more or less off-the-shelf for 8", 11", and 14" scopes from that family. Most SCTs use the same kind of mechanism, so the design is easily customized to other models, but specific dimensions vary, so I am concentrating on the…Continue
Added by Greg Marshall on December 26, 2013 at 12:57pm — No Comments
As in previous years, I have produced a calendar of my best recent astro-photos. This year the calendar is a little bigger (12 x 9 inches) and has more information about each object, including a sky chart on the back cover that shows where each object is located. That makes it an even better gift for people who are not familiar with astronomy. And the price is still just $15! To order, send me an e-mail through my web site:…Continue
Added by Greg Marshall on November 6, 2013 at 12:13am — No Comments
I've just released an all new version of the PerfectStar Focus Controller firmware and driver. The new version adds several new functions and enhancements, including greater robustness. At the same time, I am announcing a new PerfectStar Focus Motor that fully encloses both the motor and the focuser coupling. I am now using Hurst motors, the premier manufacturer of stepper motors. For details, see http://wa-chur-ed.com/.…Continue
Added by Greg Marshall on April 21, 2013 at 10:20pm — No Comments
April 16 at 1PM (Central Time) Minnesota Public Radio will be hosting an online discussion on Night Sky Photography. I and 2 other photographers will be answering questions from the public. Since I only do "deep space" imaging I don't know how many questions will come my way, but the other 2 people are experienced in (and good at) night sky photography. There's a link to the event on my web site: www.wa-chur-ed.com.
Added by Greg Marshall on April 15, 2013 at 3:47pm — No Comments
Wa-chur-ed Observatory (that's me) is proud to announce our newest addition to the product family, MRT (Mister T).
MRT (Mister T) adapter for Canon DSLR astro-photography. With rock-solid mounting and easy camera rotation adjustment, I pity the fool that doesn’t use this adapter!
Click here for more information:…Continue
Forgive the shameless commercial pitch, but I've just printed 100 copies of a calendar and need to get the word out if I'm going to sell enough to cover the cost. For more information see: http://wa-chur-ed.com/Calendar.html
I've always used a separate guide scope and like the simplicity that it offers, but I now have pretty clear evidence of differential flexure despite doing everything imaginable to make a solid connection between the 2 scopes. So I want to try an off-axis guider and am looking for recommendations. I think it should be very adjustable (both rotation and prism position) to be able to find a good guide star. My current setup uses 2" SCT threads to connect the reducer/flattener to the scope. This…Continue
Astro photographers all know that perfect focusing is both essential and difficult. A motorized focuser is a big help because it allows finer control while avoiding the vibrations typically induced by turning a focus knob by hand. However, simple DC motor systems cannot provide enough precision and absolute positioning systems using stepper or servo motors are usually very…Continue
Added by Greg Marshall on May 28, 2012 at 11:16am — No Comments
As promised, here are the results of testing my ELF panel, an electroluminescent panel designed specifically for making "lens cap" type flats. That is, by placing the panel directly in front of the telescope. This technique does not provide the highest possible accuracy, but when done properly it works quite well and has the distinct advantage that you can do it in the middle of a shooting session without bothering anyone. ELF is designed to fit snugly around the end of your scope so that…Continue
Since I retired from a career in designing electronic products (mostly related to imaging), I've often had to rely on the skills learned over the years (and learn some new ones) to solve problems that came up in astronomy. Thinking that my friends in astronomy and astrophotography might benefit from the solutions I developed (and having little else to do), I decided to make some of these solutions available as real products. My intent is not to make a big business from this and it's not…Continue
Added by Greg Marshall on June 16, 2011 at 12:25pm — No Comments