| December 13, 2012. |
Showing posts with label astrophotography. Show all posts
Showing posts with label astrophotography. Show all posts
Thursday, January 10, 2013
Wednesday, January 2, 2013
Tuesday, December 18, 2012
Monday, December 17, 2012
"The universe is wider than our views of it." ~ Henry David Thoreau
Friday, December 14, 2012
Sunday, December 2, 2012
Tuesday, November 27, 2012
Robert Frost
Monday, November 26, 2012
Stars and Clouds at Dusk
Wednesday, November 21, 2012
Monday, November 19, 2012
- Program Mode - Set to Manual.
- Autofocus - Turn off, or set to Manual.
- White Balance - Set to Daylight or use a custom white balance (especially if your camera is modified).
- Drive - Set to One Shot.
- ISO - This is discussed in detail in a following section, but generally should be set to 1600 or 800 for long-exposure deep-sky astrophotos.
- Metering - Generally doesn't matter, but you can try setting it to Spot if you are shooting the Moon or Sun (with proper filtration)
- Exposure Compensation - Set to Zero, no exposure compensation. Doesn't really matter because you are not using autoexposure.
- Shutter Speed - Set to the exposure you want, up to 30 seconds can usually be dialed in directly. For longer than 30 seconds, set to Bulb. On some cameras, Bulb may be a separate exposure mode setting, or it may be accessed on the shutter speed dial past the 30 second setting.
- Self Timer - If you don't have a remote release, you can use the camera's self-timer to trip the shutter so you don't have to touch the camera, which will help reduce vibrations and possible star trailing.
- Mirror Lock-Up - For long exposures with a very solid mounting, it probably is not necessary to lock the mirror up before an exposure. For short exposures for high-resolution planetary or double-star work, it is a good idea to lock the mirror up before the exposure to reduce camera movement and vibration caused by mirror slap. Some cameras access this setting with a control on top of the camera and some through a custom setting in a menu. Some cameras like the 20Da require the shutter to be pressed once to lock the mirror up, and then be pressed again to actually open the shutter. Take care to learn exactly how your camera works for this feature, because you could press the shutter thinking you have opened it for a long exposure and go off to do something else, and then come back only to find that all you had done was lock the mirror up and that no exposure had been taken. Some cameras do not offer a mirror lockup up at all, but they may move the mirror up out of the way as the first thing when using the self timer. Read the camera manual to learn how your particular model works.
Friday, November 2, 2012
Labels:
astrophotography,
astropix,
Genesis,
God,
sept. 2012
Friday, September 21, 2012
Night time in the Neighborhood
Wednesday, September 19, 2012
Tuesday, September 18, 2012
Wednesday, March 14, 2012
Venus & Jupiter
The planets Jupiter and Venus in alignment last night. It was a
gorgeous evening to go out and get some shots of this celestial
encounter. This event happens every 13 months. Last night, the
two planets were separated by just 3 degrees. Venus is the brighter
of the two planets even though it's much smaller in size.
When two planets line up in the sky, astronomers call it "planetary
conjunction." March 24th, 25th and 26th, a crescent moon will join
the global meeting between Jupiter and Venus being visible with the
two planets.
I took this shot of Jupiter and Venus looking through the top of our
garden arbor. Beautiful! If you get the chance and the sky is clear
tonight, go out and check this out.
Sunday, February 26, 2012
Wednesday, January 18, 2012
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