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Re: [OM] [OM Pen FT meter numbers

Subject: Re: [OM] [OM Pen FT meter numbers
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Fri, 08 Mar 2013 07:59:38 -0500
Are you going to tell us why you needed to know?

Chuck Norcutt


On 3/7/2013 6:00 PM, John Hermanson wrote:
> Thank you to everyone who helped on this.
>
> ___________________________________
> 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 3/3/2013 2:46 PM, Frank Wijsmuller wrote:
>> For visual proof of Chuck en my remarks look at the front page of this
>> brochure... <http://www.skipwilliams.com/olympus/pen-lit/o-penft-1067.pdf>
>> Clearly visible is the 0.5 minimum number of the 50-90mm lens.
>> I'd guess it has something to do with the image circle of the lens and/or
>> the non linearity of the light meter (it looks special).
>> Best, Frank
>>
>>
>>
>>
>> 2013/3/3 Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
>>
>>> But if you look at the detail given on the lens list 0 represents max
>>> aperture on only about half of the lenses.  Some have max aperture = 0.5
>>> or 1.0.
>>>
>>> Chuck Norcutt
>>>
>>>
>>> On 3/3/2013 12:56 PM, John Hermanson wrote:
>>>> According to the Pen FT owners manual I found on line, "0" on the Pen
>>>> scale coincides with whatever the maximum aperture of the lens in use
>>>> happens to be.  38mm f1.8, "0" = 1.8, 100-200mm f5 zoom, "0" = f5.
>>>>
>>>> ___________________________________
>>>> 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 3/2/2013 4:51 PM, Frank Wijsmuller wrote:
>>>>> Hi Chuck,
>>>>> is this the brochure you read?
>>>>> <http://www.skipwilliams.com/olympus/pen-lit/o-penft-1067.pdf>
>>>>> A nice one anyway.
>>>>> Best, Frank.
>>>>>
>>>>> 2013/3/2 Chuck Norcutt
>>>>>
>>>>>> I've never had a Pen before and knew nothing of this non-f/stop
>>>>>> numbering system until I just looked it up in an Olympus Pen-FT
>>>>>> brochure.
>>>>
>>> --
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>>>
>>>
>
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