More Aurora from Monday night

Ken Rennie

Well-Known Member
This was early in the night, about 8pm. The Aurora really kicked off at 3 in the morning with a KP level 3 times higher than this but I was safely tucked up in bed and only discovered this when I reviewed the data. I am happy with the images but for this I wish that I had bought the Sony 14mm f1.8 rather than the 12-24 f4 as the noise is intrusive at full size. More work needed with various AI noise reduction methods to work out the best settings. Slight mist and lots of moisture in the air producing softness in the stars.

Looking out over the edge of town. This estate was built in the 1950's to house the workers for Britain's "secret" ICBM manufacturing plant 8 miles East of here at RAF Speadadam. I am told that when they test fired the booster rockets, the houses here in Brampton vibrated. The Blue Streak rocket weighed 90 Tons plus 80 Tons of fuel. Hardened silos were built to protect the rockets and the design, never used here, was sold to the USA probably used in Minuteman. The RAF base is still used as an electronic bombing range for all NATO countries and we used to get lots of fast jets flying at 100ft and just sub-sonic over the top of these trees but not recently so perhaps it has a changed function.
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My favourite of the Scots Pine images.
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As I was taking images from here I turned around and saw a glow in the sky to the East South East and thought "milky way" and then thought I will take a milky way image while I am here.
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As you can see a faint glow of milky way totally overpowered by the aurora. I am having problems deciding on the "correct" colour balance. Slight shifts in either temperature or tint completely changes the image. I suppose that there is no correct answer as we can't make it look natural as my night vision can't pick up colour. Ken
 

AlanLichty

Moderator
Stunning colors and a really nice viewpoint for the show. I really like the second image with the pines in silhouette but the colors in the last image are completely over the top. Simply fantastic.
 

JimFox

Moderator
Staff member
Yep, faster is the key at night. Even f2.8 seems rather slow for a night lens as there are so many faster options. I have the f1.4 and f1.8 versions of Sigma's 14mm and use them both, not only can you lower your ISO in half or more, those lenses just seem to let in more light. I can't explain it, but somehow being faster they absorb more light.

What a neat show, and that one really kicked into high gear after a few hours. The Correct White Balance can be hard to determine as with strong aurora's their glow effects all that we see, not just the bright area's. But in #3, it does look like some open sky to the right, I would cool that image down to get rid of the muddy green look and get it more to blue.

And, we should be having strong Northern Lights all winter, so you may want to get the faster 14mm f1.8 or f1.4 by Sigma. Both have pro's and con's if you have a choice, I forget what camera you are using.
 

Ken Rennie

Well-Known Member
Yep, faster is the key at night. Even f2.8 seems rather slow for a night lens as there are so many faster options. I have the f1.4 and f1.8 versions of Sigma's 14mm and use them both, not only can you lower your ISO in half or more, those lenses just seem to let in more light. I can't explain it, but somehow being faster they absorb more light.

What a neat show, and that one really kicked into high gear after a few hours. The Correct White Balance c an be hard to determine as with strong aurora's their glow effects all that we see, not just the bright area's. But in #3, it does look like some open sky to the right, I would cool that image down to get rid of the muddy green look and get it more to blue.

And, we should be having strong Northern Lights all winter, so you may want to get the faster 14mm f1.8 or f1.4 by Sigma. Both have pro's and con's if you have a choice, I forget what camera you are using.
Jim I am using a Sony A7R4. I am unlikely to buy a fast 14mm lens. Photographing night skies is fun but not $1,000 fun. Ken
 
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