Update: Please go to this post instead. http://camahoy.com/2014/01/13/finally-tamron-150-600-vs-canon-400-f5-6l/
Finally had the time to put these bad boys head to head. And the results are really stunning. The Tamron delivers sharper equal images at 400mm than the Canon L lens. The bokeh is beautiful.
*Update: Some smart person commented about me having a filter on the Canon 400. How stupid of me. I actually forgot. Was using a Kenko PRO UV. Honest misstake people. Did a quick test at home here. Will try the same scenario tomorrow as i did today without the UV 😉
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Download the RAW-files: Here
You can ignore the photos below.
Both photos shot at 1/250 ISO 1600 (It’s dawn) f5.6. On a tripod on a 2 second timer.
No image stabilization. No sharpness added. Download the raw files here
For easier comparison, these are 100% crop images.