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One for Mark.. New Camera

Started by JohnP, Aug 03, 2015, 11:31:18

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ApophisAstros

#1
Amazing video of Fireflies but alas , Not a chance, i don't do the Lottery!!!

Roger :boom: :flame:
RedCat51,QHYCCD183,Atik460EX,EQ6-R.Tri-Band OSC,BaaderSII1,25" 4.5nm,Ha3.5nm,Oiii3.5nm.

MarkS

Quote from: Apophis
Amazing video of Glow Worms but alas , Not a chance, i don't do the Lottery!!!

They were fireflies on that video but I've got a few glow worms so I'll give it a try with the Sony A7S.  Moonlight looks like daylight and even on a moon-free night it can see the dog running around.

Mark

MarkS

#3
I couldn't find a glow worm so I videoed a few nebulae in real-time instead.

Uploaded to YouTube:
https://youtu.be/dbgt3epkil0

Note that this is not a time-lapse.  When I say that I see nebulae in live-view, this is exactly what I am seeing.  Through the Tak Epsilon I see similar but much bigger of course!

A higher quality MP4 version straight off the camera can be downloaded here (by clicking on the "download" downward arrow):
https://drive.google.com/file/d/0B3Ky5pyZvsINUWpobUZEeXVJeWc/view?usp=sharing

Mark

P.S. spot the fleeting meteor at the top edge at 9sec just after I say the word "camera".  I'm looking forward to Perseids night ....

Mac


Carole

That's one amazing camera Mark.

Carole

MarkS

Low light video is what this camera was really designed for.  It will also natively record 4K video but this requires an external recorder attached to the live HDMI feed.  It is rumoured that the A7SII (later this year) will record directly to an internal memory card.

It's a shame about the amp glow visible top and bottom on the left edge.  It is only really a problem in video modes and Sony have received many complaints about it from low light videographers.

Mark


JohnP

cheers Mark - looks really good - it is an amazing camera... John

Fay

really enjoyed that little tour, Mark

Fay
It is healthier to be mutton dressed as lamb, than mutton dressed as mutton!

Mike

Amazing. I'd love to see a video done through the Tak.
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

MarkS

#10
Quote from: Mike on Aug 06, 2015, 22:23:16
Amazing. I'd love to see a video done through the Tak.

Here you go :)

Modified Sony A7S on Tak Epsilon with IDAS D1 LP filter.  4 frames/sec at ISO 160000.  What you see here is exactly what I see in liveview on the back of the camera.
https://youtu.be/z80vnWCLc3o

Better quality version here, for download:
https://drive.google.com/file/d/0B3Ky5pyZvsINMGZwS0ktVGFONUE/view?usp=sharing

Mark

JohnP

Mark superb that you can see all those live... Thks for posting - John

The Thing

Great Scott! Really amazing that you can get images live like that, I think most video solutions would need to stack frames to achieve the same levels. Great for outreach type activity.

Mike

Quote from: MarkS on Aug 07, 2015, 01:53:46
Quote from: Mike on Aug 06, 2015, 22:23:16
Amazing. I'd love to see a video done through the Tak.

Here you go :)

Mark

Holy crap! That is incredible. Shame about that amp glow on the left though.
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

MarkS

#14
Quote from: Mike on Aug 07, 2015, 23:07:32

Holy crap! That is incredible. Shame about that amp glow on the left though.

Indeed, the amp glow does rather let it down for low light video but it more or less disappears for long exposure photography.

Mark