Jump to content

M240 framelines 'flickering'?


dwbell

Recommended Posts

  • Replies 42
  • Created
  • Last Reply

I've had my M for a couple weeks now and an really enjoying the experience.

 

A question related to the framelines. I tried my Visoflex on the camera a couple days ago and was surprised that the framelines completely disappear. I have set the mirror adjustment to the black dot as recommended by the visoflex user manual to assist in metering. I suspect this is happening because the frameline is not engaged but cannot be sure. But it does not explain the fact the exposure arrows are extremely faint and is in a different position than if a regular M lens is mounted. It's like I'm looking at a reflection of a reflection.

 

Thoughts?

Link to post
Share on other sites

The exposure is measured internally by a sensor which takes a reading off the shutter blades per my understanding so might not fluctuate wildly if the lens is pointed at basically ambient light. I don't know how widely the light sensor 'sees' but have also noticed jumps in brightness.

My preference would be for a manual setting as per the rear lcd.

 

 

 

Yeah, been thinking some more Rick and I suspect a dominant source like a TV in a bar or external fluorescent advertisement. Where it's variable output is significantly higher than the ambient light and thus confuses the algorithm?

 

Only odd thing is, that using the same blue eye sensor as per 0laf's post I would expect my exposure to be jumping all over the place too. That I would have noticed first and foremost, but I haven't.

 

Got a three week trip with my ladies coming up (wife, daughter & M240 - in no particular order ;) ) where I'll observe experiences. Plenty of outside bars etc.

Link to post
Share on other sites

  • 1 month later...

Advertisement (gone after registration)

Been testing out an M today... Anyone else notice the OVF frame-lines disappear after exactly 30sec of not depressing the shutter (at first pressure point)?... Latest firmware.

 

Wondering if this is a bug or by design (or the specific camera).

 

Not a huge issue, but if it's by design, it's a little annoying as I expect the frame-lines to be always on as long as the camera's on (at least).

Link to post
Share on other sites

The frame-lines may be LED (electronically) illuminated, but they are still selected mechanically. There is no link between the camera electronics and the frame-line selection mechanism.

 

Is that whey we still have to suffer frame lines in pairs? It would have been better for the lens coding (actual or manual selection) just to light up the one relevant set.

Link to post
Share on other sites

  • 2 months later...
Just curious... with the new M and its illuminated frame lines, can one switch back and forth through the different frame lines? In other words, is there an electronic replacement for the conventional frame line lever that used to be on Leica M cameras?

 

And if not, does anyone miss not having that capability anymore?

 

(The other day I was using a rented Nikon D800E alongside with a film M4 and used the frame line lever on the Leica to help make a quick sort of frame check for changing the lens on the Nikon.)

 

There is an iPhone app replacement for the frame line lever - Mark II Artist's Viewfinder from Dire Studio. You select your lenses from a list and the app shows the frame lines superimposed on a view through the iPhone camera. It covers lenses as wide as 35mm; to go further (to ~17mm) you need to attach a wide angle converter to your phone.

Link to post
Share on other sites

Is that whey we still have to suffer frame lines in pairs? It would have been better for the lens coding (actual or manual selection) just to light up the one relevant set.
That would mean an LCD in the light path. Not so simple…
Link to post
Share on other sites

The exposure is measured internally by a sensor which takes a reading off the shutter blades per my understanding so might not fluctuate wildly if the lens is pointed at basically ambient light. I don't know how widely the light sensor 'sees' but have also noticed jumps in brightness.

My preference would be for a manual setting as per the rear lcd.

No, it is measured externally.
Link to post
Share on other sites

  • 1 year later...

Old thread but same old concern at the tail end of 2015 (cos I'm a new user).

 

I've noticed the same change in frame line intensity in low level lighting, eg a building interior. If as suggested the electronics modulate the frame line brightness based on the exposure meter, then artistic choice of exposure, either under or over exposure, would affect frame line intensity. That wouldn't be a good design solution, but the external sensor would seem a more logical decision.

Link to post
Share on other sites

Rick,

the firmware is 2.0.2.5

 

FeralCoton,

if as conjectured the flickering (actually a more gradual modulation in intensity, I would say) is in response to the external sensor for the lcd display, then shutter speed should not have a bearing. However, when I noticed the 'flickering' last week it was under low intensity lighting and the shutter was set to 1/30 th.

Link to post
Share on other sites

Yeah. The shutter speed shouldn't matter as it isn't live view. Perhaps it was just the dim lighting. It was almost as disturbing as when I became aware of how the central focus square moves around as a result of parallax correction.

Are you sure of the movement of the focus patch ? I have never noticed this... and sounds a lot strange to me... the basic RF assembly, which sets the position of the focus patch, isn't movable : it's the frame lines that move according to parallax correction / focus distance...

Link to post
Share on other sites

The cut-out for the focus patch is part of the same mask that also creates the frame lines. Focus patch and framelines cannot fail to move in sync.

 

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

Link to post
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...