Testing Canon EOS 5D Mark IV with EF400mm f/5.6 USM + Tamron SP 1.4x teleconverter

Testing telephoto lens EF400mm f/5.6 L USM + Tamron SP 1.4x white teleconverter at my backyard.
I removed the tape that cover the 2 pins (that I used in 50D camera, so that fool the camera for center auto-focus-non reporting aperture data).
Canon EOS 5D Mark IV have no problem with Tamron 1.4x TC, excellent AF at f8, not only in center but all the 21 cross AF points.

Bulbul Single, ISO 6500, 1/640sec, f8, focal Length: 560mm

Murai Kampung, ISO 400, 1/400sec, f5.6, 400mm

Bamboo (Buluh), ISO 1600

BulBul Pair, ISO 1600, 1/320sec, f8, focal Length: 560mm

Bunga Raya, ISO 3200, 1/60sec, f8 focal Length: 560mm

Waterhen (WakWak), ISO 1600, f8, 1/125sec , focal Length: 560mm

Juvenile Tree Sparrow, ISO 1600, 400mm, f8, 1/640 sec


  1. Yes soft and grainy, clearly seen in greenish \”longkang\” water. Heavily cropped, at about 20 meters.The two yellow-vented pictures are near (about 3 meters).Murai Kampung is also at 20m, but with no 1.4x TC.I'm happy with 1st pic of Bulbul, shot at ISO 6500.With my old 50D, I never go beyond 1600.

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