70-400 II - 4x AF speed improvement

Started Feb 20, 2013 | Discussions thread
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SHood
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70-400 II - 4x AF speed improvement
Feb 20, 2013

Big improvement if true. I wonder if this only applies to certain bodies.

http://www.photographyblog.com/news/sony_70-400mm_carl_zeiss_50mm_f1.4_18-55mm_lenses_hvl-f20m_flash_rm-vpr1_re/

"With its new LSI drive circuit, autofocus speed of the SSM (Super Sonic Wave Motor) is around four times quicker than before. Teamed with enhanced tracking AF, the upgraded lens is now even more suitable for capturing stills and Full HD video of fast-moving subjects."

 SHood's gear list:SHood's gear list
Sony RX100 Panasonic Lumix DMC-GH3 Panasonic Lumix G Vario 100-300mm F4-5.6 OIS
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