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Does the M240 overexposes vs the M9?


hyper67

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I'm having a suspicion that the M 240 overexposes vs the M9. Can anyone confirm this. So if I set camera to A with a fixed iso number can anyone who has both cameras see if this is the case or is it my imagination - what shutter speed do u see when you meter on the same area? IS it the same or is there any difference?

I'm trying to adjust to the new M and my feeling is that the metering systems are slightly different in this regard....thx

 

I sold my M9 to fund my M240 so I am unable to perform this test.

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I assume you are using the "standard" center-weighted metering on the 240? I still have my M9-P and my relatively new 240, but I don't have two identical lenses to test your theory. I suppose I could use only artifical light to keep things as constant as possible and move the lens from one camera to the other, but even then there are possible variables (like exact camera position).

 

How much variance are you thinking you see? Small changes might be due to the sensor sensitivity (CMOS is different to CCD) - Leica will have allowed for this in the shutter speed calculation algortihms.

 

If you exposures are "correct", the fact that a different shutter speed was used for a given aperture and ISO should not be an issue.

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I'm having a suspicion that the M 240 overexposes vs the M9. Can anyone confirm this. So if I set camera to A with a fixed iso number can anyone who has both cameras see if this is the case or is it my imagination - what shutter speed do u see when you meter on the same area? IS it the same or is there any difference?

I'm trying to adjust to the new M and my feeling is that the metering systems are slightly different in this regard....thx

 

I sold my M9 to fund my M240 so I am unable to perform this test.

 

It happened to my M TYP240 yesterday in sunny daylight whilst attempting to use f2, ISO 500,shutter speed was "flashing 4000".

 

I had to set ISO to "100-Pull" to get 1/4000th sec for an acceptable shot at f2

 

I can now see why some with a Noctilux resort to using a ND filter in daylight with f0.95 or f1.0

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Why were you at ISO 500?! Strange setting if it clearly is that bright.

 

I've only had my M for a couple days, been cloudy and overcast all that time, so am still re-learning shooting with such a light-sensitive sensor as the TYP240.

 

I used to shoot a range finder 40 years ago, but in the last 10 years I'm used to shooting with Digilux 2 and Digilux 3... with AUTO-everything,

 

But after long reads of this forum, I have immediately started using my M with manual WB and fixed ISO.

 

So using ISO 500 seemed like a useful setting...... until I went into Perth's 1st sunny day , been grey and raining for the last 20 days.

 

 

Back on L-plates again........

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If anything, I felt that mine was underexposing compared to the M9. It's OK now I'm getting used to the camera and it's light metering.

 

Similar for me, more cases of under rather than over. Ok when you get to ""sense" how the central weighting is positioned in the frame with different focal length lenses.

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I've not done any consistent tests but I do find myself with -0.3 or -0.7 ev compensation set most of the time.... although it does vary from lens to lens.

 

.... but there again I prefer the more saturated colours of a slightly underexposed image ....

 

.... and with pure colours like red and yellow the M tends to blow the colour channels and give too intense and unnatural colours if they are a big chunk of the image... so overexposure is a significant issue.

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Actually iso 500 or even more sometimes is not an outrageous number in bright sunlight if what you're after is very high speeds in order to catch fast moving subjects....in any case has anyone noticed any metering discrepancy between m9 and m240...and if so by how much?

 

Alexandros Demetriades - Photographer

 

It is if you're at f/2 on a camera with a 1/4000s maximum shutter speed which is what was noted in post no 3. You don't need a meter to know that.

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