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[OM] Re: IMG: Abstract crow with 135/3.5

Subject: [OM] Re: IMG: Abstract crow with 135/3.5
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Wed, 03 Sep 2008 12:26:54 -0400
Where does one buy Russian "Dandelions"?  Do they make good wine?  :-)

Chuck Norcutt

Piers Hemy wrote:
> I am using an early version of the Russian "Dandelion" which is pre-coded
> with the lens FL.  Later versions allow the user to program (and re-program)
> the FL into the chip.  To say the programming procedure is "arcane" would be
> a misrepresntation. Suffice to say that I am happy with the pre-programmed
> version!
> 
> --
> Piers 
>          
> 
> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
> Of Chuck Norcutt
> Sent: 02 September 2008 15:00
> To: olympus@xxxxxxxxxx
> Subject: [OM] Re: IMG: Abstract crow with 135/3.5
> 
> 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
> 
> --snip  
> 
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