Comments made by Spad - Page 47

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These are some images I took before the Aurora grabbed my attention!

Lovely afternoon out playing with my 105 Macro tho.

Comment by Spad posted on The day before the Aurora at 12/05/2024 - 15:03

Wow... well spotted

Comment by Spad posted on Toad in the woods at 12/05/2024 - 13:37

Zzzzzttttt!!!

Love the idea and piccies

Comment by Spad posted on I've got the power at 12/05/2024 - 13:36

As an addendum....

I think using a longer exposure gives the image an ethereal quality that enhances the mystique of the aurora...

Comment by Spad posted on Holy Smeg!!!! Up in the sky... at 12/05/2024 - 13:16

Quote:
I think stacks or long exposures might blur detail. The K-1 is pretty useful even at higher ISOs so exposure times of around 0.5 - 2 secs will give you the best structure to the lights.

I was alluding to data being in the photo, and processing it to bringing out the detail and colour. Any ISO and/or exposure length with get you the data.

But....

I think your exposure lengths are far to short. I'd recomend a minimum of 10 seconds. Blurring is not really an issue if you are using lenses with a wide field, say 10 to 20mm. I used 15secs for each frame of the stack.it showed the movement in the aurora. Also you'll find the guys who do the aurora timelapses will be using 10 to 45 second exposures to get the saturation, but still retain the detail and movement when the timelapse is put together.

As for ISO... Most cameras have an optimum or sweet spot ISO for DSO work. I also find this works very well for night photography as well.

As for stacks.... in certain circumstances they are fantastic, especially so for enhancing star visibility and noise reduction. Detail is retained more than you'd think. Massively so for DSO!

Probably the most crucial thing about long exposure work, is allowing the sensor to cool to prevent pixel burning.

Quote:
Great set of photos Spad, you were lucky to get to see the Aurora like that. What time in the evening did you take these?

Thank you, and I was out between 11pm and 3am!

Comment by Spad posted on Holy Smeg!!!! Up in the sky... at 12/05/2024 - 12:39

In many respects, it's similar to doing DSO. The data is there. Yiu have process it, to bring it out.

Comment by Spad posted on Holy Smeg!!!! Up in the sky... at 11/05/2024 - 23:22

Yes it does move but it is not visible to the naked eye, i did a 40 frame shoot for a stack (not processed it yet). This shows it moving if i move thru them quickly... and no our eyes do not see the colours. It just looks like very high whispy clouds.

This is a non processed image, the camera sees far morecolour than our eyes do.