Wednesday, June 12, 2013

Milky Way Photography Workshop

Milky Way Reflection and meteor at Topaz Lake on the California/Nevada border, 2013
The best time to view the Milky Way in the Northern Hemisphere is close to the Summer solstice June 21, which is coming up fast. My best workshops for capturing the Milky Way will be June 14 and June 29 in Bodie State Historic Park:
http://activesole.blogspot.com/p/bodie-night-photography-workshops-2013.html

I still have a couple of spaces left in each session. The June 29 date may be the better of the two for Milky Way shots, since The moon rises late, so we'll shoot mostly under a dark starry night sky.  As an added bonus, fellow astrophotographer Steven Christenson will be co-leading this one.  We've both won awards for our photography in the Astronomy Photographer of the Year contest conducted by the Royal Observatory, Greenwich in London (the observatory is home of GMT, Greenwich Mean Time, and all GPS coordinates in the world are defined relative to their site).  June 29 is also the same date as the Google+ 2 year anniversary photowalks, so we may offer a free photowalk in the eastern Sierra earlier that day.  Contact me if you'd like to join us!

Milky Way Reflecting, and Eta Aquarid Meteor?Milky WayStargazing - Winning Image, People and Space CategoryPerseid Meteor Over Bristlecone PineSummer Milky WayMilky Way Over Big Sur
Meteor and Milky Way Over Banner PeakMilky Way Over The Sierra CrestMilky Way Over SoyamajeMilky Way Over Bristlecone PineMilky Way Over Mine RuinsStars Over Star Dust
Arch and StarsAlien TerrainMilky Way Over Mono LakeMilky Way Over Mono Lake Tufa 4Milky Way and Mono Lake Tufa Light PaintingMilky Way and Light Painting Mono Lake Tufa
Other WorldlyMilky Way Over Sawtooth RidgeMeteor and Milky Way over the Sierra NevadaPerseid Meteors over Bristlecone PinesLife From the StarsMeteor Over the Salt Flats
Milky Way, a set on Flickr.

Thursday, June 06, 2013

Bodie Foundation 2014 Calendar, Winning Shot!

Congratulations +Maximilian Laue on your contest-winning shot from our night photography workshop at Bodie last year!
I can't wait to see it on the 2014 Bodie Foundation calendar!

I can't seem to blog your photo provide a URL directly to it, but I can link to my share of it:
https://plus.google.com/104896696773020847048/posts/41fskApuWgE

I'm also thrilled to hear that you can join us again this year, on the dual night/morning sessions Oct 12/13 added today:

June 29th night
August 9th night
August 24 night
Oct 12 night + Oct 13 dawn/interior

Info:
http://www.jeffsullivanphotography.com/blog/bodie-night-photography-workshops/
Registration:
http://www.jeffsullivanphotography.com/blog/
Starry Night Over BodieStar Trails over Bodie ChurchStorm Light at Bodie State Historic ParkGolden Hour at BodieResoluteBroadcasting Knowledge
Sunset and Old Farm TruckGoing Nowhere FastBodie FirehouseBodie ReflectionStorm Threatening No OneBig Wheel
Let There Be Light!Bug EyesBodie Car Black and WhiteOut to PastureOld Cars in BodieBodie Downtown
Standard Mill & Mine, BodieBodie General Store and Stamp MillStandard Mill & Mine InsideBig WheelInside OutsideBodie Days
Bodie State Historic Park, a set on Flickr.

Tuesday, May 28, 2013

Venus, Jupiter, Mercury Conjunction (1080p, 30fps)



The planets Jupiter, Venus and Mercury are close together in the evening sky this week, so every night I've been trying to capture them together on the horizon in the twilight hours before they set. The first night the clouds were too thick. The second night I was shooting sunset in high winds at Mono Lake with the Sierra Nevada as a high western horizon, so I caught a few pictures of the planets, but they set too quickly to capture a time-lapse video. The third night was just right, relatively clear to the west, I was in a high shooting position with an apparent horizon lower than my position (less than 0 degrees elevation), and fortunately that was Sunday May 16, the night when they'd be closest together, forming a tight triangle.

There was still wind to deal with so I changed position a few times to minimize it. I could only use one camera because I had loaned my daughter one of my quick release plates the day before and it was still on her camera back home. There wasn't a lot of light and I was shooting with a 2X teleconverter on my 70-200mm lens at close to 310mm, so my aperture was limited to f/8, forcing me to bump up the ISO to minimize shutter speed in that wind. Fortunately I worked out all the trade-offs in time to capture about four hundred frames, enough to create this time-lapse video. 


Here's how my four days of effort to capture this event turned out:


Pursuing the Venus, Jupiter, Mercury conjunction on May 24, 2013.
May 24 from Lake Tahoe


Pursuing the Venus, Jupiter, Mercury conjunction on May 26, 2013. Too high of a horizon at Mono Lake!
May 25 from Mono Lake

Pursuing the Venus, Jupiter, Mercury conjunction on May 26, 2013, just right with a low horizon.
May 26 from Monitor Pass













Pursuing the Venus, Jupiter, Mercury conjunction on May 27, 2013. Too cloudy over Lake Tahoe!
May 27 from Lake Tahoe

Friday, May 17, 2013

Rainbow in a Sun Ray


Last night I caught a sun ray rainbow, just before sunset, at Topaz Lake on the Nevada/California border.  

You may have noticed that rainbows move as the sun moves.  White light contains all of the colors of the rainbow, and the rainbows we see are simply that light separated out into various wavelengths, which we perceive as colors.  This doesn't happen like it does with a prism, where the rainbow comes out the back side of the prism and that color-separated light is projected onto something.  Instead, raindrops do separate the colors of light through refraction, but instead of it escaping out the back, that light is reflected back out of the raindrop at a 42 to 43 degree angle.  So everywhere you see rainbow color is a raindrop, and if you draw lines back from that rain drop to yourself and to the light source, those lines meet in roughly a 43 degree angle.

Someone standing a mile north of you may see a rainbow, but their rainbow will be coming from a different set of rain drops making a 43 degree angle back to the sun, and their rain drops at that angle will also trace a "rainbow-shaped" arc in the sky.  This is why you can see rainbows while you drive, and they will appear to move and follow you (at that same angle to the sunlight) as you drive.

So as a photographer, if you don't like where the rainbow is, move!  As long as you don't move so much that "your" rainbow doesn't fall off the end of the column of water it's coming from and disappear into dry air, you should be able to place the rainbow where you want it.  Similarly, if you see the sun striking a column of water and the sun seems to be close to the right angle, simply move until you catch that 43 degree angle and can see and photograph the rainbow you anticipated that it was making.