Archived posting to the Leica Users Group, 1999/09/06

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: Re: [Leica] Re: Re:half shutter speeds and the such
From: "Robert G. Stevens" <robsteve@hfx.andara.com>
Date: Mon, 06 Sep 1999 18:03:28 -0300

Jim:

What does one do with  1/8th of a stop?  Would a lesser manufacture just
called it an F4 lens?  Does an eith of a stop show on chromes?  In other
words, should I just use the incident reading for F4 when shooting wide open?

Regards,

Robert

At 12:26 PM 9/6/99 -0700, you wrote:
>At 03:35 PM 9/6/99 -0300, Robert G. Stevens wrote:
>>Speaking of half shutter speeds and the such, how do you use a manual meter
>>when shooting the 105-280 wide open at F4.2?  I have just been stopping it
>>down the half stop between 4.2 and 5.6 ( 4.8?) and using that for the
>>manual meter.
>>
>>How much slower in stops is 4.2 from 4?
>>
>>Regards,
>>
>>Robert
>
>
>It goes, in 1/4 stops, f/4.0, f/4.4, f/4.7, f/5.2, f/5.6
>
>and in 1/3 stops: f/4.0, f/4.5, f/5.0, f/5.6
>
>so you can find f/4.2 as roughly 1/8th stop slower than f/4.0
>
>Jim
>
>