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Alexander DiNota

Horsehead Nebula IC 434

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Posts Made By: James Brown

June 3, 2024 02:27 PM Forum: Birding Optics and Photos

Male Broadtail - Portrait Series

Posted By James Brown
Originally Posted by James Brown
This is one of half dozen or so male broadtail hummingbirds who chase each other around our place in Colorado.   This particular one loves to perch on the tip of a pinion pine tree to survey "his" domain.  He has quite a bit of personality - bad boy, goof ball, and just annoyed.   Taken with an Astro-Physics Traveler, Astro-Physics field flattener and a Canon SL2 SLR camera at about 50'.  Jim

June 3, 2024 02:28 PM Forum: Birding Optics and Photos

Male Broadtail - Portrait Series

Posted By James Brown
Originally Posted by James Brown
This is one of half dozen or so male broadtail hummingbirds who chase each other around our place in Colorado.   This particular one loves to perch on the tip of a pinion pine tree to survey "his" domain.  He has quite a bit of personality - bad boy, goof ball, and just annoyed.   Taken with an Astro-Physics Traveler, Astro-Physics field flattener and a Canon SL2 SLR camera at about 50'.  Jim

June 3, 2024 02:28 PM Forum: Birding Optics and Photos

Male Broadtail - Portrait Series

Posted By James Brown
Originally Posted by James Brown
This is one of half dozen or so male broadtail hummingbirds who chase each other around our place in Colorado.   This particular one loves to perch on the tip of a pinion pine tree to survey "his" domain.  He has quite a bit of personality - bad boy, goof ball, and just annoyed.   Taken with an Astro-Physics Traveler, Astro-Physics field flattener and a Canon SL2 SLR camera at about 50'.  Jim

April 7, 2005 03:18 PM Forum: CCD Imaging and Processing/Deep Sky

First Light

Posted By James Brown
Well; here it is, my first light image. M51 as you might have guessed at this time of year. My camera is a new SBIG 402ME. This is a 25 minute exposure, 5 x 5 minutes. Minimal processing. I let the software auto subtract darks and auto set the contrast. I haven't done bias frames yet, and I don't have any flats either.

I adjusted the contrast a little bit to lessen the core burn out, and saved it as a jpeg for posting.

I was very pleased to see a couple of background galaxies in the FIT image. They are still sort of visible in the JPEG.

I'm really looking forward to becoming proficient at processing and the more advanced techniques. I sure didn't have time for color or anything fancy last night after my lengthy and fumbling set up! grin

Thanks, - Jim -

April 8, 2005 04:31 AM Forum: CCD Imaging and Processing/Deep Sky

First Light

Posted By James Brown
Thanks for the words of encouragement. This is going to be fun. grin

- Jim -

September 7, 2005 02:22 AM Forum: CCD Imaging and Processing/Deep Sky

M20 & M21

Posted By James Brown
Hi, seems to be a Trifid kind of day! grin

This is a composite image: the widefield scene is 9x300 seconds with an unmodified Canon 300D digital camera. The detail of the M20 nebula is 60 min. 1x1 Lum. and 30-30-30 RGB 2x2 with a SBIG 402 ME with internal color filter wheel.

I manually scaled, rotated and pasted the nebula into the 300D shot with Photoshop Elements (The basic version that came with the camera).

Both portions of the image were taken with a TEC APO 140.

Thanks for any comments! Jim

September 7, 2005 03:10 PM Forum: CCD Imaging and Processing/Deep Sky

"The Wall" NGC 7000

Posted By James Brown
Gorgeous. Thanks for posting all of the processing details on your page. You have certainly put a lot of work into the composite image! Jim

October 5, 2005 04:21 AM Forum: CCD Imaging and Processing/Deep Sky

402ME - 300d Merges

Posted By James Brown
Here are a couple more wide field shots taken with two cameras. The detailed portion is shot with a SBIG 402ME with internal filter wheel. The wide field background is taken with an unmodified Canon Digital Rebel (300d).

The pixel size on the Rebel is 7.4 microns and the pixel size on the 402ME is 9 microns, so I have to manually scale the 402ME image by 121.6% and manually rotate and align the stars. The two images are then merged in Photoshop Elements, the package that comes with a lot of cameras and is really pretty handy.

Both the detail and widefield images are through a TEC APO 140 mounted on a Losmandy G11. The first is M27 and the second is M13. (But you knew that wink )

Please let me know if the colors are whacked on your monitor. I am adjusting these by eye on a laptop.

- Jim -

October 5, 2005 04:22 AM Forum: CCD Imaging and Processing/Deep Sky

402ME - 300d Merges

Posted By James Brown
M13 processed as described above.

April 25, 2006 05:42 PM Forum: CCD Imaging and Processing/Deep Sky

M81

Posted By James Brown
Hi, I hope you like this. I am concerned that it is too dark. It looks fine on my calibrated monitor at home, but some of the detail, like the dwarf satellite galaxy at the top of the frame is lost on my un-calibrated monitor at work.

TEC APO 140, Losmandy g-11, Starlight Express SXV H-9, AstroDon LRGB filters.

LRGB 200/170/120/120 min (15 min subs) over 2 nights.

Jim

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