Jump to content

Vertical alignment


Recommended Posts

Advertisement (gone after registration)

 

A drop of my M246 camera has disrupted the vertical alignment of the rangefinder. I believe a special tool is required, available on a well known auction site. If I were to buy one, how do I access the adjustment mechanism? Is it behind a screw sited just above the lens? Is it an easy fix?

P.S. This originally posted in M Monochrom group

Link to post
Share on other sites

I can only speak from personal experience for the M10, but it is indeed an easy adjustment to make, although a little nerve-racking at first when taking off the Leica red dot.  Once the adjustment screw was exposed it just took small movements with a 2mm Allen key (and some patience) to correct.  No special tool required.  

There are a number of step by step instruction on this forum.  The idea of returning my M to Leica  (with all the cost and delays etc) for what is a very simple adjustment now seems silly.  

 

Link to post
Share on other sites

Thanks for the reply. Glad to hear a traditional Allen key would do the job.

However, there is no red dot on my M246 so that’s why I wondered if the adjustment mechanism resided behind the black screw head above the lens?

Link to post
Share on other sites

Patrick, Having done some more research on Youtube as you suggested, it seems the adjustment using a 2 mm Allen key is for correcting the horizontal alignment whereas the adjustment of vertical alignment does require a specialised tool.

Link to post
Share on other sites

The black screw-head above the lens is a blank covering the access hole for adjusting VERTICAL alignment.   It is the same hole that is covered by the Rod Dot on my M10, and the same screw-head blank as covers the hole on the M10-P.  I am surprised the M246 and M240 requires a special tool  but maybe I just lucked out with the M10.  As it is easy and non destructive to remove the screw-head blank - may I suggest you just take a look.  Here is a youtube showing an M10 undergoing the procedure:

Horizontal alignment is adjusted by using the allen key on the underside of the roller that is at the end of the focus cam that is in contact with the lens.  Move the cam and watch the focus patch move horizontally in the viewfinder.  The alignment adjustment there is for the horizontal movement. Here is a video from Youtube showing the horizontal adjustment.

I

Link to post
Share on other sites

Thanks, Patrick. I am wary about tackling a job such as this ‘blind’ with my beloved M246. I will remove the screw and inspect. Rangefinder calibration with a repairer I have used before here in the UK costs £122, so worth investigating a DIY approach. I will keep you posted.

Link to post
Share on other sites

Advertisement (gone after registration)

Hi, Patrick.

I removed the screw cap and gently inserted a 2mm hex key. It engaged and a few tiny incremental rotations one way and then the other had the vertical alignment sorted within a minute.

Thanks so much for your interest and help.

Link to post
Share on other sites

My absolute pleasure and I am so pleased you trusted your hand at the task.  I like dispelling the myths surrounding Leica being so fragile that all matters of routine maintenance must be addressed in Wetzlar (or DAG if in the US).  Regards

Link to post
Share on other sites

  • 2 weeks later...

Many thanks for this thread and especially to 'Patrick1955'!  (If that's a birth year then my DOB is 20.12.1955.)

I just had the vertical RF adjustment 'go off' on my M11.  In my case, a 1.5mm Allen key did the job easily (rather than a 2mm).  

 

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...