Exposure vs AF in menu

[Ronaldraw]

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When I go to favorites in the menu than I do not see a difference between Exposure and Af icoon.  Would be nice to see the name of the topic in the menu. 

But maybe I see it not correct.

 

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[acg69]

I am not sure what you mean. Could you please explain?

[Ronaldraw]

1 minute ago, acg69 said:

I am not sure what you mean. Could you please explain?

When you look at the menu in this picture than I don't see what exposure or AF is 

[acg69]

AF is Single (AFS) with Face Recognition (icon to the right of AFS) and exposure is f/3.2 and 1/50 (aperture and shutter speed respectively).

[djcphoto]

I think the OP is referring to the fact the the icon for exposure pattern (spot, etc) and AF pattern (single point, etc.) are very similar. It also threw me for a minute until I got used to it.

Edited June 28, 2021 by djcphoto
Clarity, hopefully.

[Ronaldraw]

Just now, djcphoto said:

I think the OP is referring to the fact the the icon for exposure mode (spot, etc) and AF mode (single point, etc.) are very similar. It also threw me for a minute until I got used to it.

It's confusing For me as a new Leica owner 

[marchyman]

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These (which I assume is what your post was about) are different icons.

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The one on the left is Auto focus mode, currently set to Multi-Field.   The various icons that can be displayed there are on page 61 in your manual.  The one of the right is, I believe Drive mode.  The icon in the lower left corner of your screen shot is Exposure metering mode.

But, yeah... I prefer words to icons, too.

[Ronaldraw]

2 minutes ago, marchyman said:

These (which I assume is what your post was about) are different icons.

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The one on the left is Auto focus mode, currently set to Multi-Field.   The various icons that can be displayed there are on page 61 in your manual.  The one of the right is, I believe Drive mode.  The icon in the lower left corner of your screen shot is Exposure metering mode.

But, yeah... I prefer words to icons, too.

Thank you for the informations. 

Yes names would be easier 

[Ronaldraw]

Af and exposure button 

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[Ronaldraw]

When I chose for the exposure for Multi-Field, should I chose for AF also for Multi-Field?

So AF should be the as Exposure?

[marchyman]

You seem to be conflating two different features into one.

• Focus: what part of the viewfinder is used to select the focus point
• Exposure: What part of the viewfinder is used to select exposure.  I prefer the term "metering mode" to exposure.  Exposure is ISO, Shutter speed, and Aperture.

Anyway, focus mode and metering mode are different things.    I may well use matrix metering mode and face detection focus mode when trying to capture grandkids running around the yard.  I might choose spot metering where something is back lit and I don't care if the background is blown out.

I tend to keep focus mode on center and metering mode on center weighted because that is closest to what I get when using my M.  It makes switching between the two cameras easier.   But I don't always use those modes.

[wizard]

vor 20 Stunden schrieb Ronaldraw:

When I chose for the exposure for Multi-Field, should I chose for AF also for Multi-Field?

So AF should be the as Exposure?

As explained above by marchyman, AF mode and 'Exposure' or, more precisely metering mode, are two different things which are unrelated to each other. So there is absolutely no need for the AF mode to correspond with the metering mode.

Edited July 2, 2021 by wizard
correction

[Ronaldraw]

Thank you for the information. I know that AF mode and 'metering (Exposure') mode are 2 difference things.

The question is: If I set the meetering mode to multi-field, I also want to get those areas sharp. Then I would also choose AF for  Multi-field.  

hope to get some advice or ideas. 

[Chris_H]

1 hour ago, Ronaldraw said:

Thank you for the information. I know that AF mode and 'metering (Exposure') mode are 2 difference things.

The question is: If I set the meetering mode to multi-field, I also want to get those areas sharp. Then I would also choose AF for  Multi-field.  

hope to get some advice or ideas. 

Sorry, but you are still mixing up the 2. The metering mode is to do with how the brightness and balance of light (grey scale) is accounted for on the scene. Either as an average across the scene (multi-field), or as a small area in the centre. It has nothing to do with sharpness. The AF setting is entirely dependent on how you what you want to focus on (on a persons eye) or perhaps differently, a scenic landscape. 

Edited July 2, 2021 by Chris_H

[Ronaldraw]

I suppose we talk about the same thing.  I also want to sharpen the points that I want to expose.  So these are indeed two different things. However, they do have something to do with each other.

So if I want to focus different areas, both sharp and exposure, I should  have to set metering as AF. 

[Chris_H]

2 hours ago, Ronaldraw said:

So if I want to focus different areas, both sharp and exposure, I should  have to set metering as AF. 

Errmmm .... no

 

Can I politely suggest you buy the book 'Understanding Exposure' by Brian Peterson. It is the definitive guide on this topic

https://www.amazon.co.uk/Understanding-Exposure-Fourth-Photographs-Camera/dp/1607748509/ref=sr_1_1?adgrpid=54048613435&dchild=1&gclid=Cj0KCQjw8vqGBhC_ARIsADMSd1AorDsIQT0KQZR9fYdmgzQdJu9OAUV85rXXcJyxh-9xcEGxiZoPq64aAp3LEALw_wcB&hvadid=259100976200&hvdev=c&hvlocphy=1006693&hvnetw=g&hvqmt=e&hvrand=2481748269816845865&hvtargid=kwd-297813738430&hydadcr=23989_1815413&keywords=understanding+exposure&qid=1625236743&sr=8-1

[SrMi]

2 hours ago, Ronaldraw said:

I suppose we talk about the same thing.  I also want to sharpen the points that I want to expose.  So these are indeed two different things. However, they do have something to do with each other.

So if I want to focus different areas, both sharp and exposure, I should  have to set metering as AF. 

The Exposure and Autofocus metering are typically independent from each other. I almost always use Field AF and  Multi-Field exposure metering.

You can combine Spot exposure metering with Spot/Field AF metering so that the exposure is metered where you focus.

When selecting Multi-Field AF metering, you do not make everything sharp (in-focus), but let the camera pick the place where to focus.

[jaapv]

10 hours ago, Ronaldraw said:

Thank you for the information. I know that AF mode and 'metering (Exposure') mode are 2 difference things.

The question is: If I set the metering mode to multi-field, I also want to get those areas sharp. Then I would also choose AF for  Multi-field.  

hope to get some advice or ideas. 

If that is what you  want to do your only option is focus stacking. If you want acceptable focus in different places, you can only close your aperture down to increase DOF and focus someplace in the middle. Exposure has absolutely nothing to do with focus.

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[marchyman]

7 hours ago, Ronaldraw said:

 I also want to sharpen the points that I want to expose

Then don't use multi field exposure.   It looks at the entire field of view and processes that info with some built in algorithm to decide the exposure value.   You have zero control.  The algorithm doesn't know that you want the face to be properly exposed even if that means slightly blowing out the background.

If you want to make sure the well exposed part of the frame is also the most in focus part of the frame use spot metering and spot focus.  Even then the flatness of the focus plane comes into view.  Use a large enough aperture (I find f/4 to usually be large enough on the Q but will often switch to f/5.6 or f/8) and maybe keep your focus point near the center of the frame.

[Ronaldraw]

1 hour ago, marchyman said:

Then don't use multi field exposure.   It looks at the entire field of view and processes that info with some built in algorithm to decide the exposure value.   You have zero control.  The algorithm doesn't know that you want the face to be properly exposed even if that means slightly blowing out the background.

If you want to make sure the well exposed part of the frame is also the most in focus part of the frame use spot metering and spot focus.  Even then the flatness of the focus plane comes into view.  Use a large enough aperture (I find f/4 to usually be large enough on the Q but will often switch to f/5.6 or f/8) and maybe keep your focus point near the center of the frame.

Thank you for your advice