Re: [Leica]Zen focusing was (LUG) srews

["Dan S" <dstate1@hotmail.com>]

You have given me an idea!  I have found the lack of a light meter on my LTM 
actually speeds up my shooting.  Could this also be the case with focusing?  
I will go out today and try not to look through the focusing finder...Just 
guess and go..This could be a good thing!

Best wishes
Dan States


>

>
>Arthur Lenberger wrote
>
>"I bought a 25mm SKOPAR this week (and LTM to bayonet
>adapter) to use on my M3. I plan to test it this
>weekend, but my question is that I need to use
>hyperfocal distance since the lens does not engage the
>focusing images (sorry for the non-technical names for
>these things). Should this be?
>1) Are there different adapters for different focal
>lengths in the M mount?
>2) If I buy the 15MM Heliar will I have the same
>problem? I realize that at 15mm, almost the whole
>world will be in focus.
>3) If I were to buy and use Leica SM lenses, would
>they to have to be focused hyperfocally (sp?)?"
>
>The Voigtlander 25mm  lens has no RF cam, so it won't work the rangefinder.
>If this troubles you and the vendor did not explain it at the point of 
>sale,
>I'd go back and kick up.
>
>The 15mm is the same. Both lenses use "zone focussing"- or, "Hey, that's
>about 10 feet away so I'll turn this here  focus dial to to 10 feet (or 3
>metres)" In fact UK versions of the 25mm  lens are click-stopped at 4 focus
>points- a throwback to Instamatic technology if you ask me- but which 
>should
>work well enough.
>
>You don't HAVE to use the hyperfocal, but it makes sense to leave the lens
>set on that as you have no confirmation of focus in the viewfinder. This
>willl make grab shots much easier, and the click-stops should at least mean
>that the focus will stay where you left it.
>
>You won't have this problem with most LTM (Leica Thread Mount) lenses,
>including the Russians, because they have the rangefinder cams built in, 
>and
>they will work the RF on your M just as well as they do on the bodies they
>were built for.
>
>There are three different LTM- M adapters available, and the framelines 
>they
>bring up depend on the M camera you're using. However, none of them are
>accurate for the 25mm field of view, so it doesn't really matter which one
>you have, as you'll need the matched Voigtlander optical finder in any 
>case.
>(Again, if the vendor did not explain this, you might like to ask him why
>not). Since you have no rangefinder coupling, using a separate viewfinder 
>is
>not as bad as you might at first think, as you  won't be jumping from
>rangefinder to viewfinder to focus and frame.
>
>FWIW I personally think that the absence of a rangefinder cam on the 25mm
>would take some getting used to. Part of the point of using rangefinder
>cameras, at least for me, is the vastly greater ease and accuracy of
>focussing with short lenses when compared to SLRs, so not to have the
>rangefinder seems perverse to put it mildly.. .......    Having said that,
>the 25mm is not very fast, so your results should be okay.
>
>Have fun
>
>
>Rod
>

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