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Re: [OM] adjusting the 24 shift mechanism

Subject: Re: [OM] adjusting the 24 shift mechanism
From: Joel Wilcox <jfwilcox@xxxxxxxxx>
Date: Tue, 13 Oct 2009 07:09:54 -0500
On Mon, Oct 12, 2009 at 12:59 PM, iwert bernakiewicz <zuikooh@xxxxxxxxx> wrote:
> I adjusted the 24 shift yesterday. It has a completely different
> system from the 35 shift.
> The horizontal shift friction can be adjusted by 4 screws. These can
> be reached when looking from the back
> and doing a full up and down shift. There are 2 screws visible in the
> felt pad. A light turn will adjust the friction.
> Don't turn to tight, because there won't be any shift possible anymore.
>
> The vertical shift is done the same way, but looking from the front. A
> total shift left & right will reveal
> 4 similar screws when pulling out the thin metal light baffle. These
> screws are more difficult to reach because the lens
> becomes wider to the front, and it is impossible to keep the
> screwdriver perpendicular to the screw heads.
>
> I also found that the outer wedge keeping the vertical shift was very
> slightly loose. The only way to tighten these screws is removing the
> back element
> to allow for more shift. I did not do this! I tried to tighten the
> visible quarter of the screw with a very strong and small
> screwdriver in little turns, and this worked as well...
>
> In hindsight it is logical the 24 uses a different scheme. The amount
> and weight of the shifted part is very much heavier
> than the 35 mm lens. Using the same mechanism would simply not work.

Thanks for sharing this, Iwert. I hope I won't need it, but good to know.

Joel W.
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