I dropped a PC screen into my OM-2 (which has the meter needle adjusted
for series one screen). PC screen may have different etching, but it is
the same brightness as a series one screen. Funny, I remember it
differently. I dropped in a damaged 2-4 (thirds etching done
off-center), and needle reads anticipated 2/3rds of a stop brighter.
___________________________________
John Hermanson | CPS, Inc.
21 South Ln., Huntington NY 11743
631-424-2121 | www.zuiko.com
Olympus OM Service since 1977
Gallery: www.zuiko.com/album/index.html
On 8/5/2011 7:10 PM, usher99@xxxxxxx wrote:
> I wonder how much the brighter screens reduce focusing contrast? The
> immutable no free lunch laws of physics dictate it must reduce it some.
> Still OK at F 1.2?
> I really like my JH scribed 2-13 and think I can focus at F1.4 OK, but
> never have done a proper experiment comparing the 1-13. I have never
> seen a post on that and have searched the archives in vain. I bet John
> would know. I agree with AG that the judgment of bokeh is perturbed
> with the 2-series. Certainly all dramatically better for manual focus
> of Zuikos than the Canyon stock screen for use on the OM 5DII.
> Best estimate is reliable depth of focus
> accuracy of F4 though magnified live view is obviously spot on.
>
> 2-13 Screen in use Tomorrow, Mike
>
>
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