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Macro Images of Flames (in Slow Motion 6400 fps)

 
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fisheyeadventures



Joined: 06 Nov 2018
Posts: 49
Location: Germany

PostPosted: Sun Sep 08, 2019 6:53 am    Post subject: Macro Images of Flames (in Slow Motion 6400 fps) Reply with quote

Hey everyone,
have you ever wondered how inflamed gas looks like in the macro perspective? I revealed the hidden beauty of fire using frame rates between 6400 and 60.000 images a second. Due to the high frame rates, the resolution of the images was limited to 1000x1000 pixel at 6400 fps and 300x150 pixel at 60.000 fps. I hope you like the quality of the images anyway;) Have you every tried to get nice fire photos or videos? If yes, please share your captures with us:)
https://youtu.be/qgb8zPNhutI
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Chris S.
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Joined: 05 Apr 2009
Posts: 3359
Location: Ohio, USA

PostPosted: Sun Sep 08, 2019 11:57 pm    Post subject: Reply with quote

Interesting videos. (Though I'll admit finding some of the music and special effects off-putting.)

Would you mind sharing what it was like working with the high-speed video camera you used: the FASTCAM Mini AX200?

Looking around the Internet, it appears that the prices for this camera and similar models are not commonly disclosed by the maker, but shared only within private communication (a practice I despise). I did see a reference in which a private individual gave the price of a superficially-similar-sounding camera (possibly more primitive than yours) at over $40,000 USD. Ugh--far out of my budget.

This said, there are macro subjects whose high-speed behavior seems intriguing. Characterizing such things, filmed with a high-speed camera and viewed in slow motion, might let us learn a great deal.

So if you can show us how to obtain high-speed cameras for macro work--within an ordinary budget--please do so! Did you rent? Use a camera a few generations old that sells for less than state-of-the-art-models? Borrow from the camera maker in return for publicity?

Anything you can teach that would to bring high-speed macro photography within our budgets would be greatly appreciated.

Cheers and thanks,

--Chris S.
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fisheyeadventures



Joined: 06 Nov 2018
Posts: 49
Location: Germany

PostPosted: Mon Sep 09, 2019 12:58 am    Post subject: Reply with quote

It is always a lot of fun to work/play with a camera like this, because you never know you get at the end.

Unfortunately, these cameras are expensive like crazy and I cannot afford them. I work at a company which produces optical measurement systems and does some cooperation with Photron. I got into contact with them and they allowed me to borrow one of their camera from time to time for free without any request to promote their cameras.

If you want I can ask my contact person of Photron if they offer used, older versions for lower budget.
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Chris S.
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PostPosted: Mon Sep 09, 2019 1:40 am    Post subject: Reply with quote

fisheyeadventures wrote:
If you want I can ask my contact person of Photron if they offer used, older versions for lower budget.

Please do! There are fascinating scientific questions, potentially answerable with high-speed videomacrography. If we, mere mortal, photomacrographers could have access to high-speed video cameras compatible with our rigs, very informative work could be done.

But so far as I've seen, the needed high-speed video cameras have been priced too high for us amateurs. Any help you could provide might make a difference.

Cheers,

--Chris S.
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fisheyeadventures



Joined: 06 Nov 2018
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Location: Germany

PostPosted: Mon Sep 09, 2019 3:10 am    Post subject: Reply with quote

Alright, I try to get some information for you;)
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fisheyeadventures



Joined: 06 Nov 2018
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PostPosted: Tue Sep 10, 2019 1:06 am    Post subject: Reply with quote

After talking to my photron contact:
It is very difficult to sell older/used cameras, because
they always have to offer support/repair services as well.
Most of the used cameras they own are used as spare part storage.
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Chris S.
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PostPosted: Tue Sep 10, 2019 1:55 am    Post subject: Reply with quote

Thanks for checking, Fisheye--it's much appreciated, even though the answer is "No go."

In a similar vein, I'd gotten to thinking: If a high-speed camera costs over $40,000 new, I probably couldn't afford it on the "recently-used" market, either.

A few years ago, I interviewed a researcher whose work involved high-speed cameras. While I couldn't afford the cameras he was working with, he told me that fairly recently-surpassed, but still capable, high-speed cameras were selling cheaply on eBay. But when I checked the prices of these cameras on eBay, my impression was that his idea of "cheap" and mine were unfortunately far apart.

Cheers,

--Chris S.
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kds315*



Joined: 02 Feb 2009
Posts: 205

PostPosted: Fri Oct 11, 2019 10:38 am    Post subject: Reply with quote

I did a bit for that using my usual approach, have a look:



https://photographyoftheinvisibleworld.blogspot.com/2015/08/deep-uv-ultraviolet-reflected-light.html

and

https://photographyoftheinvisibleworld.blogspot.com/2016/09/deep-uv-ultraviolet-reflected-light.html




and here simple tea candles in UV, but not-so-simple UV recording using a up to 100.000x MCP UV camera (bought as surplus, not new $$.$$$):

https://photographyoftheinvisibleworld.blogspot.com/2016/12/deep-uv-ultraviolet-reflected-light.html
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http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
http://photographyoftheinvisibleworld.blogspot.com/ my UV diary
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fisheyeadventures



Joined: 06 Nov 2018
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Location: Germany

PostPosted: Sun Oct 20, 2019 11:00 am    Post subject: Reply with quote

Love those captures! Very Happy
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