Re: [Utah-astronomy] Lytro camera
I'm just curious if this will affect the field.
The emphasis of the camera's new technology is to take short-exposure images and then have more image processing options based on the additional vector ray information. At a typical 1/200th sec terresterial exposure times, each vector ray is probably unchanging. In contrast, in high-end astrophotography, images are exposed for five or six minutes, repeatedly, and the resulting images are stacked. Given the long exposure times and that the images are subtley changing positionally over a five minute period, the question comes to mind whether vector ray deconvolution would work for astrophotography. Over five minutes each pixel detector's vector ray may be changing. The technology looks like a game changer for me and is based on an almost embarrassingly simple idea (as in ``Why didn't I think of that?'') - add another microlens for each pixel in order to deconvole the vector direction of each light ray. Then you can digitally recompose any slice of the image. Time to throw out my newly purchased Canon Xsi. For astrophotography, IMHO, it's impact will be moderate, even though the additional ray vector information will allow for even more detailed images at the amateur level. High end imagers here, like Rob Ratkowski, David Rankin and Tyler Allred, already are very skilled at making well-focused images over extended periods. It will be a matter of getting one of Lytro cameras and see what it can do. Maybe in practice, it will ``blow the doors'' off current imaging technology. Clear Skies - Kurt
This is such a strange and possibly wonderful development. For many years I've had it in my head that a new form of photography could be invented if it were possible to capture a column of light somehow, which could be reconstituted something like a hologram. Now this almost seems to do it. I was thinking that lenses could not be used in such a device, but apparently Lytro does use lenses. Very, very interesting. Thanks for telling us about this -- Joe ________________________________ From: Canopus56 <canopus56@yahoo.com> To: Utah Astronomy List Serv <utah-astronomy@mailman.xmission.com> Sent: Friday, June 24, 2011 10:34 PM Subject: Re: [Utah-astronomy] Lytro camera
I'm just curious if this will affect the field.
The emphasis of the camera's new technology is to take short-exposure images and then have more image processing options based on the additional vector ray information. At a typical 1/200th sec terresterial exposure times, each vector ray is probably unchanging. In contrast, in high-end astrophotography, images are exposed for five or six minutes, repeatedly, and the resulting images are stacked. Given the long exposure times and that the images are subtley changing positionally over a five minute period, the question comes to mind whether vector ray deconvolution would work for astrophotography. Over five minutes each pixel detector's vector ray may be changing. The technology looks like a game changer for me and is based on an almost embarrassingly simple idea (as in ``Why didn't I think of that?'') - add another microlens for each pixel in order to deconvole the vector direction of each light ray. Then you can digitally recompose any slice of the image. Time to throw out my newly purchased Canon Xsi. For astrophotography, IMHO, it's impact will be moderate, even though the additional ray vector information will allow for even more detailed images at the amateur level. High end imagers here, like Rob Ratkowski, David Rankin and Tyler Allred, already are very skilled at making well-focused images over extended periods. It will be a matter of getting one of Lytro cameras and see what it can do. Maybe in practice, it will ``blow the doors'' off current imaging technology. Clear Skies - Kurt _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php
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Canopus56 -
Joe Bauman