Star Trails by Canon Image Challenge

Canon Image Challenge | all galleries >> Challenges From The Past >> 2016 Challenges >> CIC 158 Round >> Eligible > Star Trails

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28-OCT-2016	Michael Kilpatrick

Star Trails

The OMD-EM1 has a mode called "Live Comp", which has a base exposure (in this case 6 seconds) and then multiple exposures for as long as required. The subsequent exposures only change the original exposure if they contain pixels that are brighter than the corresponding pixels in the original exposure. This is perfect for star trails close to a city, where the sky is not very dark.
This is the result of 30 minutes of 6 second exposures.

Olympus OM-D EM-1 ,Olympus M.ZUIKO DIGITAL ED 12-40mm f2.8 PRO
6s f/2.8 at 12.0mm iso200 hide exif

Full EXIF Info
Date/Time	28-Oct-2016 19:50:45
Make	Olympus
Model	E-M1
Flash Used	No
Focal Length	12 mm
Exposure Time	6.00 sec
Aperture	f/2.8
ISO Equivalent	200
Exposure Bias
White Balance
Metering Mode
JPEG Quality
Exposure Program
Focus Distance

other sizes: small medium large original auto

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comment

Canon Image Challenge		04-Nov-2016 02:23
I liked the original. But this is good as well. I had envisioned a 2nd source of light. Jim

Michael Kilpatrick		03-Nov-2016 22:26
Thanks Dave. I dropped the brightness on the side of the church a little. I agree that it's better. Regards, Michael

Canon Image Challenge		01-Nov-2016 10:25
Well done, and very cool. I like the hint of sunset in the background. The only improvement I can envision is decreasing the amount of light on the right side of the church/chapel. It almost appears as if a vehicle's lights or spotlight is shining on it. Dave

Michael Kilpatrick		31-Oct-2016 22:36
Thanks Dave. Yes, I think it's probably possible emulate this process by taking a large(ish) number of shorter exposures and blending them in Photoshop, possibly using "lighten" as the blending mode. Regards, Michael

Canon Image Challenge		31-Oct-2016 03:00
Very nice. I did star trails one night a few years back. It was a very dark evening. Most of my shots were long, something like 15 minutes. I'm pretty sure I put it together in photoshop using layers and some blending setting, but I don't remember which one. Anyway, this is a fine looking shot. davev

Michael Kilpatrick		31-Oct-2016 01:05
Thanks for the kind comments everyone. I had some technological help with this shot. I was thinking about how I would have approached this if my Olympus didn't have the Live Comp mode and I'm not sure I could have done it. Regards, Michael

Canon Image Challenge		31-Oct-2016 00:38
Geeze this is good...if anyone could compete with Dave on sheer talent it is you...Damn! This is not to denigrate anyone else, Steve, Paul, Jim....but Dave gets it out there, and so do you. Just excellent. Traveller

Canon Image Challenge		31-Oct-2016 00:21
This is excellent. I love the composition. Jim

Canon Image Challenge		31-Oct-2016 00:12
This is a jaw dropper in my eyes, excellent entry. Paul.

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