Date (YYYY, YYYYmm, YYYYmmDD), #hashtag, fragment, word, or phrase:     



This is an image from a gallery of photos and art. Sorry.
Monday, April 7th, 2008
Use the following link to share or bookmark this specific image ⇨  ⚓Permlink

Another image is available for Monday, April 7th, 2008



Lagoon Nebula. Triffid Nebula, M21, M24

Here's a wide-field shot of the Triffid nebula, the Lagoon nebula, M21, M24, a background of a bazillion stars, interstellar dust lanes, and a whole bunch more. No special equipment was used, just a camera, an 85mm lens, a standard tripod and some software. This stuff is out there... you just need to aim up! Well... and you need dark skies, sorry.

This is a stack of ten shots with Canon EOS 40D, Canon EF 85 mm ƒ/1.2L II USM prime, all 10 shots @ ƒ/1.2, ISO 3200, 4 sec exposure, tripod, 2sec shutter holdoff. Levels and clipping in Aperture, with stacking for a noise reduction of 8x and light amplification of 20% performed in WinImages.

Taken the evening of Sunday, April 6th (or early morning of the 7th, if you prefer) at 4:37 AM.

All ten original images are just slightly out of focus, because I (finally) figured out how to have the camera focus in "live view" mode, and I was determined to let the camera and lens combo set the focus and evaluate the results when I got home. I did this because this lens is showing significant chromatic aberration when I focus it to what seems to me to be critical focus at ƒ/1.2. The AF did not achieve anywhere near the degree of focus that I can manually, though there is less CA this way. I prefer the tight focus and the CA to a slight case of "the blurs", though.

#astro

Width: 1020
Height: 681

No EXIF Data

Image Collections:

1:1250 Ships - Amiga - Animations - Aquarium - Arcade - Art - Astro - Audio - Aurora - B&W - Ben - Cars - Cathouses - Cats - Clouds - Comics - Comets - Crepuscular - Dollhouses - Deb - Deer - Designs - DTank - Eclipses - Family - Fireworks - Florida - Fog - Food - Friends - Gear - Ham Radio - Horses - Humor - Infrared - IROC - iToolBox - James Blish - Judy - Library - Meezers - Milford - Minerals - Models - Montana - Moon - Morphing - Motorcycles - Music - OSX - Pareidolia - Pickles - Pinups - Pizza - Portraits - Radios - Rainbows - Recipes - ReFlex - Restorations - Science Fiction - SdrDx - Shortwave - Spaghetti - Stained Glass - Storms - Sunbeams - Sunrises - Sunsets - Superstition - 跆拳道 - Tee Shirts - Trains - Uc&F - Virginia Kidd - Watches - Windows - WinImages

Image and commentary Copyright ©2008 fyngyrz
Gallery software Copyright ©2023...2024 fyngyrz