Sony 7S

Sony Alpha 7S has been sold in Japan and IDAS already tested its modified 7S performance.

 

As expected, amazing video performance in low light condition. Unfortunately the sky looks thin cloud or hazy all the time, or maybe sky glow.  I guess 1/4″ is the longest shutter speed in video mode.  Keep in mind IDAS HEUIB-II filter neutralizes background color while maximizing Ha transmission.  I believe this  filter must be further more useful for astro videography by the modified DSLRs.

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~ by tedishikawa on June 20, 2014.

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