just fooling around with my new toy the Keno 1.4X Teleplus 300 teleconverter. My canon 5D3 retains all 61 AF points at F8 when used with the 70-300L f4-5.6. Focus is spot on and IQ is not bad.
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Image hosted by forum (619456) © Lnguyen1203 [SHARE LINK]
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