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Posts Made By: Mike Wirths

April 19, 2005 04:30 PM Forum: CCD Imaging and Processing/Solar System

Fabricius crater

Posted By Mike Wirths

And the last one:

Fabricius crater: this 78km crater borders the more famous crater Jansen, it has an interesting inner wall/mountain range.


same image details as for my other images.

cheers

Mike W

April 29, 2005 05:13 PM Forum: CCD Imaging and Processing/Solar System

Schiller--exercise in image scale

Posted By Mike Wirths

Hi all,

Beenplaying with some older images using Reg 3 (finally getting the feel for that one). I'm posting the mosaic that I shot at 11500mm fl using a 5X's powermate, its redone in Reg 3 (old one was ver 2) and processed a bit harder. I also did another avi very soon after with a 3X's televue barlow so that would about 7500mm fl. Seeing was pretty much the same for both avis and I tried to process both the same using wavelets in Images Plus, I think that when the seeing warrents it then its very worthwhile to shoot at large image scales. My shot done with the 5X's barlow shows many more smaller features like craterlets in the floor of Schiller. Sure shooting at long fl's has its probelms like less light, tracking problems etc but I think if Mother natures co-operating then go for it!!
What do you think?

cheers

Mike W

June 7, 2005 01:57 PM Forum: CCD Imaging and Processing/Solar System

Back from Mexico!

Posted By Mike Wirths

Hi All,

Well I'm back from my vacation in Baja Mexico, my Wife and I drove from Ontario Canada with my 18" SM in a box I had built for the back of our truck. Saw some awesome scenery especially when we got off the interstate in the 4 corners area of Utah to see arches national park...gorgeous!!
We stayed in an area near San Perdro Martir national park in northern Baja (about 4 hours drive south of San Diego) this area is very unvisited by most tourists and only gets 300 visitors a year. Its quite spectacular and unlike what one would think of as typical Mexico desert terrain, its more like what one would see around Flagstaff with high alpine forests. We stayed at a guest ranch in the foothills (2500')which was very nice, but the bummer was that I was in a deep valley so the seeing was never that good, plus it was impractical to move it anywhere on a moutaintop since the terrain was so rugged. It would have been perfect in the high meadows near the national observatory an hour up into the park but I'd need a popup trailer to camp out there... next time! Consequently I did'nt get any good images of the moon and Jupiter but the deep sky observing after the moon set was better than what I've experienced at the Texas star party, my stay there had every day and night totally cloud free. Baja has to be one of the best places in the N hemisphere for astronomy, its even clearer there than the American SW. We took a tour up to the 2.12 meter scope at the peak which was just over 9000', the observatory manager gave us a breathtaking view from the catwalk of the 84 inch scope, I attached the view which is to the NE one can just make out the sea of Cortez 35KM away to the west, it was a bit hazy that day but the guide said that on a good day one can see both the Pacific to the west and the cortez to the east, I am not good with heights so my Wife said I was a bit pale going around the catwalk with the huge dropoff 8O . Plans are underway to build a 6 meter scope as well as a 30m scope! Its the best location for astronomy in the N hemisphere after Monau Kea because of its subarcsecond seeing, the dark skies and relatively close to the large telescope labs in the US.
I had my new Lumenera 075M camera with me that I got from Paolo the day before leaving, it was learn as you go, plus I never imaged with a laptop before so I was'nt used to the crappy uncontrasty image they give. I captured a bunch of videos but too brightly, I certainly like using a good CRT monitor better, maybe the next lunar 1st quarter I'll get some good 1st light images!

good to be back, wow lots of stuff to catch up on!!
I think I just want to sell our farm, retire early, move to Baja and build an observatory , maybe start an astronomy B&B any takers to come and visit? 8) My Wifes actually not against the idea! Theres the biggest hurdle won already wink

cheers

Mike Wirths

June 16, 2005 12:05 PM Forum: CCD Imaging and Processing/Solar System

Re: A not so boring side...

Posted By Mike Wirths

Wow Damian, really incredible!!!! Can hardly wait to see some more from your trip!

Mike W

June 21, 2005 06:52 PM Forum: CCD Imaging and Processing/Solar System

New 16 bit Atik cameras!!

Posted By Mike Wirths

Hi all,

Just noticed that the new 16 bit cameras have been announced at Atik intruments.
http://www.atik-instruments.com
The one model ATK-16 has a ccd array 752x582 8.6x8.3 micron pixels. Its based on the Sony ICX-429ALL ExView CCD. The lowest shutter speed though is 1/1000th! So maybe too fast for lunar/planetary? Any of the techies out there have an opinion as to the usefulness of this new camera to us?

--Mike Wirths

June 27, 2005 01:35 PM Forum: CCD Imaging and Processing/Solar System

Lyra in the clouds

Posted By Mike Wirths

Hi all,

Sorry for the OT post but I stumbled upon this image while cleaning up my hard drive. It was taken a couple summers ago on a moony night with my then new Canon10D. There were lots of fast moving high clouds with lots of sucker holes, the moon made them very bright, it was a pretty sight!!

cheers

Mike W

August 2, 2005 10:50 AM Forum: CCD Imaging and Processing/Solar System

Eye of Mars

Posted By Mike Wirths

Hi all!

Well I'm back at imaging after a long dry spell, either the weather was crappy or I was insanely busy on our farm :S
So this morning I got up at 4:00 to image Mars. Seeing was only 5/10 but hey it was nice to be back plus the mosquitoes were almost nil! This was the 1st test of my new Lumenera 075M on a planet, I used a Baader IR passband filter to help with the seeing. I used my 18" Starmaster, and a 5X's barlow. Stack of 1000. Video shot at 30 fps (my tracking was wonky so I did'nt use the ROI). Much easier to focus at high frame rates! Image shows Solis Lacus nicely! grin

just an isane no. of wonderful lunar/Mars/solar pics here lately BTW

Mike Wirths

August 9, 2005 06:37 PM Forum: CCD Imaging and Processing/Solar System

Types of barlows to use for imaging?

Posted By Mike Wirths

Hi all,

I got to wondering today about optical quality and design of barlows. We can spend buckets of money on good scopes and cutting edge cameras like the lumenera, but if we use a cheapie barlow we can lose quality! I myself have a regular 1 1/4" 3X's Televue and a 5X's Televue Powermate.
According to the Televue site the Powermates are supposedly better than the purely visual regular barlows for imaging because of a better spot size with less edge distortion. I'm thinking of selling my regular 3X's and getting a 2.5 Powermate and maybe a 4X's powermate (very $$$). This would give me lots of flexibility of image scale and would be able to respond to variable seeing better.
However there are other companies out there that make premium barlows like Takahashi, Astro Physics, Baader etc, has anyone had any experience with them? On a local Toronto vendor I saw these for sale by Baader, they are specialized for solar work perhaps they would also work for our purpoes?
http://www.kendrickastro.com/astro/ep_baader.html

I ordered one of the new Lumenera infinity 2.2's yesterday, I can hardly wait to try it!! The filesizes for that camera will be huuggee!

cheers

Mike W

August 22, 2005 02:00 PM Forum: CCD Imaging and Processing/Solar System

Re: Mars on August 17th

Posted By Mike Wirths

Damian,

My 1st reaction I can't even post here or I'd be booted off!! Just WOW, awesome images!!!


--Mike

August 22, 2005 02:01 PM Forum: CCD Imaging and Processing/Solar System

Re: Mars - August 19th - Volcanoes in slightly bet

Posted By Mike Wirths

Robert,

REALLY superb image!!! You should be very happy with that one!


well done

Mike