TAG Image Processing
Re: focusmax + maxim 5.03
Art Morton wrote: > J, > > This is a 12 Bit system for color conversion so it has to use a Bayer > Matrix so the colors have to be > […]
Uncategorized
Re: FWHM and pixel size
Art Morton wrote: > Something is just not right with the figures below. I need to read > this again and understand the color conversion. JPG is resized. Size it up to […]
birthday images 3 – aspect ratio and book thoughts
I’ve been thinking about printing out a book of my astrophotos. 8×10 and 16×20 are both 4:5 (1:1.25) sizes. So while the native resolution of the D70 is 3008×2000, the max 4:5 […]
birthday images 2 – resolution
This article is talking about magazine quality, 300dpi printing. It suggests that 6mp is good for 8×10, and about 4x the resolution is needed for 16×20. however, Kodak says 1600×1200 is sufficient […]
Re: Pointing Model vs. Polar Alignment
Art Morton wrote: > > On Jun 9, 2008, at 9:13 AM, Jimbo S. Harris wrote: > >> Art Morton wrote: >>> I also have to find out how to handle that […]
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Re: Pointing Model vs. Polar Alignment
On Jun 9, 2008, at 9:13 AM, Jimbo S. Harris wrote: > Art Morton wrote: >>>> How much of the Veil were you able to cram into one shot? I would >>>> […]
Solar System Photography / Technology
AVI repair
http://www.pk3.org/Astro/index.htm?software_utils.htm
Gear / Solar System Photography / Techniques
Planetary camera / webcam autoguider
The other morning when I was awakened at 5am by sprinklers, I noticed that Jupiter was past meridian (meaning so was Sagittarius, but it was too light for me to see it). […]
Gear / Solar System Photography
Re: dude. not cool.
Art Morton wrote: > Gorgeous: > > The image capture software is easy to use and had great features for > timing and camera adjust. The images detail seems to be much […]
Uncategorized
Re: no calibration = bad
On Apr 3, 2008, at 8:44 AM, Jimbo S. Harris wrote: > At 08:09 PM 4/2/2008 -0700, you wrote: >> Detail, Detail, Detail. > > The image is bigger in Kate. With […]
RECENT UPDATE
Polar Alignment Calculations
Here’s a page that derives Polar Alignment Calculations. (update 5/2020: the original site is gone, so I found the text on Wayback and am inserting it below. This is by the original […]
Gear / Observatory / Telescope
Special Guest Star takes the mount at Hilltop O
The Astro Jedi needed somewhere to store his light sab—- I mean, bucket, and I was only too happy to accommodate him. I have decided that I need to come to a […]
General / Maintenance / Observatory
Dome shutter is motorized again!
I finally decided to bite the bullet and fix the shutter motor. Things went sideways last winter, and I’ve been opening the shutter manually (and tying it shut with rope, so we […]
Trixie 2017 – tube mods
I finally got around to cutting the MTA-UTA tubes to length; the only eyepiece that would come to focus with the focuser spacer in place is the Televue 55mm Plossl. If I […]
MOST COMMENTED
Observatory
Observatory 2.0 – Time has come today!
General / Maintenance
First Light, a deeper look
Mount / Observatory / Telescope
Observatory 2.0 – Result!
Observatory
Observatory 2.0 – The Pier goes in
Gear / General / Maintenance
Martin Farmer Wormblock installation notes
Deep Sky / Long Exposure Photography
NGC2244, The Rosette Nebula
Deep Sky / Long Exposure Photography
Another beautiful night.