Dragonflies and Damselflies

AlanF

Stay alert, control the camera, save photos
Aug 16, 2012
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5,875
It seems that dragonflies have a tracking system that Canon learn from! They are highly involved predators.
 

Erik X

EOS RP
Jul 26, 2013
379
609
Sweden
It seems that dragonflies have a tracking system that Canon learn from!
Cool stuff :)
I wonder what the small pearl-looking objects next to the nose are. And there is something looking like a single optical lens centered in the nose...
The metal pearls looks very much like the germanium lenses used on thermal imaging cameras but it simply can't be. Snakes has thermal vision but since there is no biological material that can act as lens for thermal radiation, they use a 'pit'-sensor which is is more or less a pinhole camera with extremely low resolution.

I read somewhere that dragonflies shake the retina behind the facets to improve resolution beyond 'facet-grid'. So it was quite fun to read the press release from Hasselblad about their new technique to improve resultion from a 50 Mp sensor to 200 Mp.. guess how they do it :p
https://www.wired.com/2011/05/hasselblad-squeezes-200mp-images-by-shaking-a-50mb-sensor/


F36A2123 ZS_part.jpg
 
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applecider

EOS RP
May 20, 2012
488
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Portland Oregon, Cape Cod
Erik I checked out your flicker pages and gave you some well deserved favs.

I'm really trying to do birds but these guys keep showing up instead.

This is a blue dasher eating a damselfly probably... based on other unposted shots.

The quality of the photos here is getting too good, I'm embarrassed to post my humble guns. Keep up the good work but post a thumb shot or a shutter cap every once in a while, please.:)

DF eating side                                          .JPG
DF watches DF eat DF                                          .JPG
 

Pieter

I'm New Here
Jul 13, 2014
15
31
dragonfly-049.jpg

Dew-covered Meadowhawk

dragonfly-138.jpg

Emperor Dragonfly laying eggs.
I'll stop now - sorry for taking up all this space! I did a little book on dragonfly photography a few years ago - hence my enthusiasm ;-)

Used a 40D, 5D III, or 7D II, with the 100 f2.8 macro or the 300mm f/4L.