kbitz Posted February 9, 2011 Report Share Posted February 9, 2011 Hello, What is the accurate way to match the EI lens to a real world lens? thanks Ken Quote Link to comment Share on other sites More sharing options...
Tomas Egger Posted February 10, 2011 Report Share Posted February 10, 2011 Ola Ken, The real lens always have distortions, Wide lens for example, which 3d applications cant replicate, a few ones can, but its a real slow render. The workflow secret to all Films and Tv productions is get your shot (need to take note of lens and Camera type, Digital Cameras have some values to be converted to match real film lenses) and bring this data for example in a 3d tracking software, un-distort the shot, track it, it which will generate a 3d lens to you, import in EIAS, render your 3d scene, bring the EIAS Render to your compose software like After Effects, and distort the EIAS render to match the real scene, appears tricky, but when you get the workflow, everything becomes perfect. Take a look on this Syntheyes VIdeo Tutorials: http://www.ssontech.com/content/lens1flow.htm http://www.ssontech.com/content/lens2flow.htm http://www.ssontech.com/content/centering.htm http://www.ssontech.com/content/lensalg.htm http://www.ssontech.com/content/lensflo.htm http://www.ssontech.com/content/lensGrid.pdf Hope this help Thanks Tom Quote Link to comment Share on other sites More sharing options...
kbitz Posted February 10, 2011 Author Report Share Posted February 10, 2011 Thanks Tomas. That works for me. I just thought I might be able to plug my camera data directly into EI. cheers Ken Quote Link to comment Share on other sites More sharing options...
Tomas Egger Posted February 10, 2011 Report Share Posted February 10, 2011 Ola Ken, Its a bit more tricky.. but works perfect... I did several films in my life using this procedure.. :) Thanks Tom Quote Link to comment Share on other sites More sharing options...
Ian Posted February 11, 2011 Report Share Posted February 11, 2011 If you are talking about a still image, you can put in your focal length into an EIAS camera, and match it this way (remembering if you camera is full frame or 2/3 frame, this is VERY important for matching cameras). Best, Ian Quote Link to comment Share on other sites More sharing options...
Tomas Egger Posted February 11, 2011 Report Share Posted February 11, 2011 Ola Ian, Thanks :) Tom Quote Link to comment Share on other sites More sharing options...
kbitz Posted February 13, 2011 Author Report Share Posted February 13, 2011 If you are talking about a still image, you can put in your focal length into an EIAS camera, and match it this way (remembering if you camera is full frame or 2/3 frame, this is VERY important for matching cameras). Best, Ian Thanks for adding that Ian. If you are compensating for 2/3 sensor are you converting to the equivalent focal length for that lens on a 2/3 sensor or do you make the adjustment elsewhere? cheers Ken Quote Link to comment Share on other sites More sharing options...
Ian Posted February 14, 2011 Report Share Posted February 14, 2011 Hi Ken, yes, you make the conversion to the equivalent focal length. Best, Ian Quote Link to comment Share on other sites More sharing options...
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