Posted: Sun Jan 29, 2012 2:11 am Post subject: Re: Battle of the vintage Zuiko vs Modern lenses - 1961 and |
|
|
Fabian wrote:
stingOM wrote: |
Not sure why the author tested them all at different apertures when stopped down? |
I scanned over it at first, but he did clarify:
Quote: |
With wildly disparate maximum apertures, I had a few options to examine them. Wide open, then all at the same aperture, or wide open and a certain number of stops closed down. I chose the latter. Since most lenses tend to be at their sharpest about two stops closed down, I took shots both wide open and two or so stops down. For stopping down, I stuck to whole f-stop numbers to make it easier, so the lenses are actually between 2 and 2.5 stops closed down |
|