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Frame line issue?


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#1 solouga89

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Posted 18 June 2017 - 18:10

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Hi all,

 

I bought an M262 yesterday with a 50mm summicron and am hugely happy!

 

One minor thing - what I see inside the frame lines is actually quite a bit more than what I see on the final image. Is this normal? Taking a photo from a distance of 2-3m with with a row of wine bottles towards the bottom of the frame lines, the image captured cuts off pretty much the whole bottle

 

I've manually selected the lens type from the serial number (as it doesn't have 6bit coding) but is there anything else I have failed to do? Or does this sound pretty normal?

 



#2 jdlaing

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Posted 18 June 2017 - 18:44

Firstly, the frame lines are set mechanically by the mount flange on the lens. 6 bit code has nothing to do with the frame lines.
The accuracy of the frame lines per the distance to the subject take a little getting used to. With a little practice you'll get it.

#3 jaapv

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Posted 18 June 2017 - 18:54

The frame lines are accurate at one distance only, which varies between 1 and 2 m. depending on the model of the camera.

As the focal length of the lens varies with the focussed distance this cannot be anything else, except if Leica were to introduce digital frame lines at some point in the future. Until then, the frame lines will be too narrow at infinity and more or less accurate close-up. Most experienced M shooters tend to frame a bit loosely at shorter distances.


  • Peter Kilmister said thank you to this

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I like taking pictures of Dogs because they don't object to being photographed - and they don't ask for prints.

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#4 Jeff S

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Posted 18 June 2017 - 19:03

This and much other useful info covered in the FAQ...

https://www.l-camera...-answers/page-1

Enjoy your new gear.

Jeff

Edited by Jeff S, 18 June 2017 - 19:04.


#5 jaapv

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Posted 18 June 2017 - 19:08

Thanks, Jeff :) . Specifically this post:

 

https://www.l-camera...wers/?p=2464054


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#6 ECohen

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Posted 18 June 2017 - 19:38

The frame lines are accurate at one distance only, which varies between 1 and 2 m. depending on the model of the camera.

As the focal length of the lens varies with the focussed distance this cannot be anything else, except if Leica were to introduce digital frame lines at some point in the future. Until then, the frame lines will be too narrow at infinity and more or less accurate close-up. Most experienced M shooters tend to frame a bit loosely at shorter distances.

 

Ahhhh that make sense. Coming from DSLR to the rangefinder I just assumed it wasn't accurate and "close enough" .......so I left a little room around what I wanted and moved on.
 

Thanks Jaapv for once again explaining things simply.



#7 Jk1002

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Posted 18 June 2017 - 21:10

If i am not mistaken, 262 works with 2 meter. So it should be pretty much spot on. Unless your using a funny angle I wouldnt considers this normal.

There is a 262 youtube by a german guy in youtube, that explain the angle thing. Maybe post a picture.

#8 Jeff S

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Posted 18 June 2017 - 21:34

If i am not mistaken, 262 works with 2 meter.


Yes, all M240 based cameras have frame lines optimized for 2m, like the M8.2. Other digital M frame lines are optimized for 1m.

This should not be confused with the focus patch, which is set at a virtual distance of 2m for all these versions.

Jeff

#9 jaapv

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Posted 19 June 2017 - 00:54

But- as the viewfinder is not in the optical axis, it will suffer from parallax perspective shift, which, despite the framing being correct, can give surprising results.  Yes, it does correct for parallax in the plane of focus, but everything before and behind that  plane will be shifted to a certain extent.

I made a somewhat primitive sketch, hope it makes things clear.

 

Attached File  IMG_0598.JPG   26.51KB   9 downloads


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#10 solouga89

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Posted 19 June 2017 - 16:42

Thanks all, this was helpful.



#11 jdlaing

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Posted 19 June 2017 - 17:46

But- as the viewfinder is not in the optical axis, it will suffer from parallax perspective shift, which, despite the framing being correct, can give surprising results. Yes, it does correct for parallax in the plane of focus, but everything before and behind that plane will be shifted to a certain extent.
I made a somewhat primitive sketch, hope it makes things clear.

attachicon.gifIMG_0598.JPG


That's a little exaggerated.

#12 jaapv

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Posted 19 June 2017 - 19:04

Do you know a better way to make the situation clear? ;) And it depends on the subject distance...


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#13 jdlaing

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Posted 19 June 2017 - 20:18

No and yes.

#14 jdlaing

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Posted 19 June 2017 - 20:19

And dandy artwork by the way.

#15 jaapv

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Posted 20 June 2017 - 00:37

And dandy artwork by the way.

LOL. My technical drawing teacher, ages ago, would have had a heart attack, :D


Jaap

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Posts in blue bold font are made as a moderator

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I like taking pictures of Dogs because they don't object to being photographed - and they don't ask for prints.

Elliot Erwitt



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