Archived posting to the Leica Users Group, 2009/07/07

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Subject: [Leica] IIIg diopter adjustment
From: digiratidoc at gmail.com (James Laird)
Date: Tue, 7 Jul 2009 17:59:26 -0500
References: <daaeb97e0907060806g2d38b772we1f459d539262794@mail.gmail.com> <4A5229A1.1040101@gmx.de> <daaeb97e0907061117q10a9127bqd56fc5f300a8bb2c@mail.gmail.com> <4A52EBC9.5090608@hale-pohaku.net>

Did Leica make diopters for the viewfinder of the IIIg?

Jim

On Tue, Jul 7, 2009 at 1:31 AM, Dennis<dennis at hale-pohaku.net> wrote:
> Understand that the LTM cameras with a built in rangefinder have a separate
> window for the rangefinder and viewfinder. It it the rangefinder window 
> that
> has a diopter adjustment, not the viewfinder.
>
> They pretty much had to put the diopter adjustment on the rangefinder
> because it magnifies 1.5x it's really a focus adjustment for what can be
> looked at as a low magnification telescope.
>
> Note that the IIIg viewfinder is 0.7 magnification and of course has
> illuminated lines to indicate both the 50mm and 90mm field of view with
> parallax correction. If you don't use eyeglasses and can see the entire
> field of view through the finder it's close enough to serve for use with a
> 35mm lens.
>
> The M3 was introduced in 1954 and the IIIg in 1957. As much as anything I
> think the IIIg was in response to photographers that liked the smaller size
> of the LTM models and that felt the price of the M3 was too dear. When 
> Leica
> designed the finder for the M2 they reduced the cost significantly and that
> pretty much took away the cost reason and most photographers realized the M
> was a better solution thus the IIIg was discontinued.
>
> James Laird wrote:
>>
>> Makes you wonder why they left it off the M series.
>>
>> Jim
>>
>> On Mon, Jul 6, 2009 at 11:43 AM, Douglas Sharp<douglas.sharp at gmx.de>
>> wrote:
>>
>>>
>>> Hi Jim,
>>>
>>> there's a little lever under the rewind knob to adjust the diopter
>>> setting,
>>> on my IIIg it's a little loose and easily knocked of setting.
>>> I think the range must be about -2 to +2
>>>
>>> Cheers
>>> Douglas
>>>
>>> James Laird wrote:
>>>
>>>>
>>>> I read somewhere the IIIg viewfinder has built-in diopter adjustment.
>>>> Is this true?
>>>>
>>>> Jim
>>>>
>
>
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>


Replies: Reply from douglas.sharp at gmx.de (Douglas Sharp) ([Leica] IIIg diopter adjustment)
In reply to: Message from digiratidoc at gmail.com (James Laird) ([Leica] IIIg diopter adjustment)
Message from douglas.sharp at gmx.de (Douglas Sharp) ([Leica] IIIg diopter adjustment)
Message from digiratidoc at gmail.com (James Laird) ([Leica] IIIg diopter adjustment)
Message from dennis at hale-pohaku.net (Dennis) ([Leica] IIIg diopter adjustment)