I didn't mean to stir up such a hornets nest. :-o
But after thinking, I'll bet that Olympus has done it's homework and will make
the 50 Macro for the E-4/3 a useful lens with an adequate working distance for
macro. We'll just have to see what it looks like. Of course, I could be wrong
and Olympus could screw it up too.
Skip
-----------------------------------------------------------------
Please reply to [skipwilliams at pobox.com]
Direct responses to the email address on the header may get lost
----------------------------------------------------------------->
>Subject: Re: [OM] 4/3'rds, why no "standard" lens?
> From: "C.H.Ling" <chling@xxxxxxxxxxxxx>
> Date: Fri, 14 Mar 2003 21:26:05 +0800
> To: <olympus@xxxxxxxxxxxxxxx>
>
>Oh! my E-10 must be wrong! the 36mm lens (should be even shorter at close
>distance) has much longer working distance than my Zuiko 50/3.5 with the
>same image coverage!
>
>C.H.Ling
>
>----- Original Message -----
>From: "Ralf Loi" <ralf_loi@xxxxxxxxxx>
>
>>
>>
>> I can't agree. FOV is for "normal" subject (landscapes, etc) not for
>macro.
>> If you think in terms of reproduction ratio, it is another story. The
>> 50/3.5 macro does 1:2 at 23 cm (if I remember corretly), it means that an
>> object at that distance will be reproduced at half the size on the focal
>> plane - no matter what size is the sensor/film! For the 90/2 the same
>> happens at 40 cm - again, the size of sensor/films doesn't matter. These
>> distances are not the working distance, but are related to.
>> I suspect the 50mm macro for the 4/3 system will work the same as "our" 50
>> macro, so working distance in the field can be difficult.
>>
>> Ralf Loi
>>
>> chling@xxxxxxxxxxxxx wrote
>>
>> Depends on how you interprete it, since the FOV of 100mm lens in 35mm
>> system
>> is equal to 50mm lens in 4/3 system. That means for the same object you
>> will need the same working distance for both. If you are satisfy with
>> working distance of 100mm macro lens in 35mm system it will be the same
>for
>> 50mm lens in 4/3 system, that is simple math.
>>
>> C.H.Ling
>>
>
>
>< This message was delivered via the Olympus Mailing List >
>< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
>< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|