[Leica] I can focus my Noctilux

[steve.barbour at gmail.com (Steve Barbour)]

> I don't have a dog in this hunt;  my latest Leica RF is a IIIf.  However, 
> over the past few years, I recall numerous postings by multiple owners 
> about the delays in getting rangefinders calibrated to specific lenses.  
> It was a recurring theme.  With the advent of the EVF, accurate focusing 
> is there when needed, and the RF is there for mundane work.
> 
> Horses for courses..........................


thanks Jim, you are exactly right; rangefinders focus based on a preset, 
blind mechanical linkage that can become unreliable, like most of us, 
through age, trauma, by falling, being bumped etc. It can also be adjusted 
well for one lens or set of conditions, and less well for other. What you 
recall correctly is that under certain stringent cicumstances, where the 
rubber hits the road, tolerances may be so tight, and demands so high that 
an individuals hit rate goes down so significantly, that attempts to improve 
the rate may involve recalibration of the rangefinder, sometimes with the 
lens. In this case the EVF may help since you are actually focussing on 
something you can see.


s


> 
> Jim Nichols
> Tullahoma, TN USA
> 
> 
> On 2/10/2014 7:44 PM, Steve Barbour wrote:
> On Feb 10, 2014, at 3:32 PM, Geoff Hopkinson <hopsternew at gmail.com> 
> wrote:
> 
> Which is a really interesting topic for me because all else being equal I
> find that the RF is much more precise.
> 
> more precise than what Geoff ?
> have you given an adequate trial to focus peaking?
> 
> That is to say that in my experience
> what is your experience with focus peaking?
> 
> there is a range of acceptable focus peaking effect as you move the focus
> ring (not dissimilar to a plain ground glass in effect?) but only one
> moment when the RF is truly aligned.However that is not taking into account
> focus shift which the EVF negates for you.
> so you 1. see better what you are focussing on 2. have a separate 
> confirmation of focus  3. avoid focus shift (a biggie when you are wide 
> open) 4. benefit from focus peaking for long lenses as you mention below
> 
> Of course the RF is not very
> good at all if you want to use R lenses or long teles, or macros or third
> party adapted lenses!
> 
> so what's not to like?
> 
> Steve
> 
> 
> 
> Cheers
> Geoff
> http://www.pbase.com/hoppyman
> 
> 
> On 11 February 2014 08:40, Steve Barbour <steve.barbour at gmail.com> 
> wrote:
> 
> On Feb 10, 2014, at 2:17 PM, rgacpa at gmail.com wrote:
> 
> Whoop!
> Did you try it with just the range finder?
> MUCH less certain
> 
> 
> s
> 
> 
> Sent from my iPad
> 
> On Feb 10, 2014, at 2:06 PM, Steve Barbour <steve.barbour at gmail.com>
> wrote:
> 
> On Feb 10, 2014, at 2:05 PM, Steve Barbour <steve.barbour at gmail.com>
> wrote:
> finally, at f1...
> 
> http://gallery.leica-users.org/v/barbour/PAW+2014/glasses.jpg.html
> 
> focussed near lateral RIGHT rim, on RIGHT earpiece, 1/2 inch from the
> rim...
> 
> Leica M 240 with Noctilux at f1, RAW file done with focus peaking,
> using Olympus VF-2..
> 
> many thanks,
> 
> 
> Steve
> 
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> -- 
> Steve