Focusing With CV 21mm

[the.ronin]

I'm pretty happy with the results of my CV 21mm. But I was wondering if the focus patch in the viewfinder was consistent with the focus ranges on the focal ring?

I ask because I was focusing on something in the viewfinder than noticed that the focal distance range for the selected f stop suggested on the focal ring was inconsistent. I forget exactly what the distances were and I certainly did not use a laser ruler to measure but did not seem right.

I use the zone focusing for street a lot so this struck me as a concern.

Also this is not like a fisheye where you can set it to infinity and forget it right?

 

[Bob Michaels]

I shot my CV 21mm for well over a year only zone focusing just as I did with my CV 24mm. Only when I loaned it to a friend for a weekend did he tell me that it actually was RF coupled. Nice to know but I still only zone focus it.

 

[the.ronin]

Really great to know. Thanks.

 

[Robert Lai]

The focus via the rangefinder should correspond to what is marked on the focusing ring. You probably need to do some focus tests with a yardstick to be sure that the focus is accurate wide open and up close.