KatzEye claims little impact on metering with the E-510 screen
<http://www.katzeyeoptics.com/item--Olympus-E-510-Focusing-Screen--prod_E510.html>
but only for ZD lenses. They warn that: "Meter performance may vary
significantly when using non-ZD lenses with a mount adapter." However,
they also state: "Please note that all metering testing was done using
Zuiko Digital (ZD) lenses." It's difficult to square these two
statements if they've never tested non-ZD lenses. I think I'd call them
to see what they really do and don't know.
ps: Which focus confirmation adapter worked? I never use anything but
the center focus point and can't imagine allowing the camera to choose
the focus point.
Chuck Norcutt
Piers Hemy wrote:
> Nice work, Peter, and good to see you back in the fold! As far as the focus
> problem is concerned, I can offer a couple of pieces of advice based on my
> experiences using OM glass on E-bodies:
>
> Though I have not used a KatzEye, I did try an aftermarket focus screen in
> an E-1. The screen has a split image focusing aid, just like an OM 1-3
> screen (i.e. without the microsprisms). Manual focusing is much easier -
> but metering becomes inaccurate with all lenses (even DZ), and by varying
> amounts depending on the lens. Flash metering is pretty much impossible.
>
> I have also used focus confirmation chips on E-410 and E-3 (the version I
> had is not compatible with E-1), and they do work. They are sensitive (as
> they should be) so it is very easy to focus through the in-focus point with
> a manual lens (just as with MF cameras). The difference is that, unlike
> with a split image where you can see the image coming into focus, with the
> focus confirmation chip it's either in or out of focus, there is no "nearly
> there" indication. A further handicap is that there is no indication of
> which focus point is the one triggering the in-focus indicator. The E-410
> itslef will indicate which of the three focus points is active, by way of a
> red LED. The focus confirmation chip does not, which is hardly helpful
> (though I suppose I could have manually selected only the central focus
> point).
>
> Knowing what I now know, I would use liveview. The E-3, on the other hand,
> is much much easier to use with MF lenses, as the VF is noticably bigger and
> brighter.
>
> I have learned the hard way that there was a reason for Olympus to be so
> reluctant to release the OM adaptor!
>
> --
> Piers
>
>
> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
> Of Peter Klein
> Sent: 01 September 2008 10:25
> To: olympus@xxxxxxxxxx
> Subject: [OM] IMG: Abstract crow with 135/3.5
>
> Today I experimented with an old 135/3.5 Olympus OM tele on the E-510. It's
> like using a 270mm lens on a 35mm camera. Manual focus, manual stop-down,
> aperture priority metering, and in-body image stabilization. I focused wide
> open, then counted clicks down f/8 to shoot.
>
> --snip
>
> Focusing is difficult. If I keep using this lens, or my 100/2.8, I'm going
> to want a focus confirmation chip on the lens adapter, and/or a Katz Eye
> screen. Anyone with experience with either of these--how well do they work?
>
> --Peter
>
>
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