How much "separation" does the CL 35/1.4 provide?

[scott kirkpatrick]

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Earlier discussion on this is buried in the image thread somewhere, so I'll start a new thread.  At the Jerusalem Marathon this morning, I shot a series at the first water station, 3 km along, 39 km to go:

 

C1020570 by scott kirkpatrick, on Flickr CL 35/f/1.4@1/800

 

The runners are starting to spread out at this point, so it provides a good test of the 35's ability to differentiate among the people in a colorful crowd.  At f/1.4 it does a nice job:

 

C1020637 by scott kirkpatrick, on Flickr CL 35/f/1.4 @ 1/640 sec

 

There is still some separation at f/2.0:

 

C1020690 by scott kirkpatrick, on Flickr CL 35 f/2.0@ 1/500

 

but none at all at f/2.8:

 

C1020672 by scott kirkpatrick, on Flickr CL35 f/2.8@ 1/125

 

Of course the elite runners (note their single digit bib numbers) don't need water this early

 

C1020579 by scott kirkpatrick, on Flickr

 

A few more at https://www.flickr.com/gp/133969392@N05/7g19Wb .

Edited March 9, 2018 by scott kirkpatrick