11-09-2014, 10:52 AM
(This post was last modified: 11-09-2014, 11:06 AM by Brightcolours.)
My 70-200mm f4 L USM narrows the FOV towards MFD very noticably, the focal length itself goes down a bit (I think to somewhere around 180mm). It delivers 0.21x max. mag. at 1.2 meters. With a 12mm ext. tube, it gives 0.29x at ~1m.
This 100-400mm gives 0.31x at 0.95m. That is about the same. So, the focal length will be around 180mm at MFD. That means you will see the FOV widen when going towards MFD.
The old one gets 0.20x at 1.8m, the new one loses more towards MFD (else it would score close to 0.4x at MFD).
Comparing it to the Nikkor AF-S 80-400mm f4.5-5.6 VR: in MF it reaches 0.196x at 1.5m. If the focal length loss is more or less "linear", the two lenses (new Canon and new Nikkor) are more or less comparable, focal length loss wise?
This 100-400mm gives 0.31x at 0.95m. That is about the same. So, the focal length will be around 180mm at MFD. That means you will see the FOV widen when going towards MFD.
The old one gets 0.20x at 1.8m, the new one loses more towards MFD (else it would score close to 0.4x at MFD).
Comparing it to the Nikkor AF-S 80-400mm f4.5-5.6 VR: in MF it reaches 0.196x at 1.5m. If the focal length loss is more or less "linear", the two lenses (new Canon and new Nikkor) are more or less comparable, focal length loss wise?