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Hi All,

 

I tried to search this on this forum but wasn't getting anything. Can I verify the Auto ISO function here with M240 owners ? My M240 will not change ISO automatically if I don't use Apeture Priority Mode (even though I have set it to Auto ISO in the ISO manual after I press the ISO button). It only works if I turn the shutter knob to A (aperture priority)

 

My M9 doesn't behave this way, is this the "new feature" on the M240 or I am not doing it right ? Would appreciate your help and thanks in advance.

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AutoISO only works in Aperture Priority. If you switch to full manual the camera will set the ISO used for the last image (however it will still say AutoISO).

 

Thanks Stephen for the verification....I was so surprised that the M240 was set up this way that I thought I didn't set it right. Still, I think Leica didn't get this right...hopefully it will be fixed in the next firmware update :(

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Plain stupid of Leica. It worked with the M9, even though not perfect (no exposure lock).

 

Yup I am definitely with you on that, it can be considered as a bug ! It says Auto ISO in manual mode but it doesn't change the ISO automatically....so now when I need to set the shutter & aperture manually I will need to remember to also set the ISO for the right exposure...actually a real pain...:mad:

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I do not agree. I try to explain in bad English: I have a M9, where the automatic exposure often is not accurate. So I turn quickly to manual exposure and choose the correct time. But in Auto Iso the camera perhaps overrides my choice and does the false exposure. I do not want that. As a consequence I never use Auto Iso, though I would like to.

 

But admit, that the M solution is not optimal. Going to manual exposure the camera should take base Iso better than the last value of Auto Iso.

 

Elmar

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I also note that if you set the base speed at say 1/60th in the auto ISO menu and move the camera around to different light values, the speed indicated in the viewfinder can often be under the value, even though you have not reached the top ISO you have set. Then after a little while the speed resets itself to the correct value. The reverse also happens where the speed goes above the base speed but the ISO has not ticked down. Again if you either wait a bit or do another half press of the shutter, it resets correctly. In other words, compared with the M9, the system seems a bit sluggish, with a built in lag. With the faster electronics in the M240, I would have expected this to be faster than the M9 not slower. Firmware fault maybe?

 

Wilson

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Plain stupid of Leica. It worked with the M9, even though not perfect (no exposure lock).

 

In manual mode by definition the ISO must remain fixed. The whole point is to control the three variables of aperture, shutter speed and ISO. Which ISO it should default to is debatable of course but default to something.

 

 

- Vikas

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In manual mode by definition the ISO must remain fixed. The whole point is to control the three variables of aperture, shutter speed and ISO. Which ISO it should default to is debatable of course but default to something.

 

 

- Vikas

 

I agree. If you leave the M9 on AutoISO and try using flash in GNC mode, you will get all sorts of odd results, as the pre-flash, GNC and AutoISO all fight against each other. I have not tried it yet on the M240, but I guess the same will apply.

 

Wilson

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In manual mode by definition the ISO must remain fixed. The whole point is to control the three variables of aperture, shutter speed and ISO. Which ISO it should default to is debatable of course but default to something.

 

Did I say this was a manual approach? Has your Camera a position on the shutter wheel saying "M" or "Manual"? No, there's just a speed and that's what I want. I use AUTO-ISO as this way it is a very fast method to avoid motion blur in fast changing light conditions. If it'd overexpose, I correct my shutter speed. If I want adjustment I use exposure compensation. It's as simple as that, but maybe it isn't old school enough for some of you folks.

 

If I want manual (and I do that at times) I set the ISO value myself of course, I won't put it to AUTO-ISO obviously, I can't see where this is misleading. Of course, if I were photographing trees in daylight exclusively I wouldn't see the point either.

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You are in the same way right as we others are. Everyone has his own preferences. And Leica has to decide, whoes preferences they satisfy.

 

Elmar

 

I don't agree. They could leave the desicion to the user by making a firmware that offers various possibilities for a personally customized setup.

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Hi All,

 

I tried to search this on this forum but wasn't getting anything. Can I verify the Auto ISO function here with M240 owners ? My M240 will not change ISO automatically if I don't use Apeture Priority Mode (even though I have set it to Auto ISO in the ISO manual after I press the ISO button). It only works if I turn the shutter knob to A (aperture priority)

 

My M9 doesn't behave this way, is this the "new feature" on the M240 or I am not doing it right ? Would appreciate your help and thanks in advance.

 

Plain stupid of Leica. It worked with the M9, even though not perfect (no exposure lock).

 

You are in the same way right as we others are. Everyone has his own preferences. And Leica has to decide, whoes preferences they satisfy.

 

Elmar

 

HI Guys

this has been a point of much discussion and debate. Elmar - you are right that Leica felt it should be one way or another. I think it worked better with the M9, but they succumbed to suggestions from other users who said they didn't want Auto ISO in manual mode .:confused::mad:

 

Personally, TAV mode (as I think Pentax called it) where you can set the aperture and shutter speed manually, and allow the Auto ISO to sort out the exposure is a hugely valuable way of shooting - Lots of circumstances where it's really valuable. (Concerts, Shooting from a moving car - etc).

 

I don't see any reason why there couldn't be a simple menu option in the Auto ISO setup - Use Auto ISO in Manual Shutter mode I'm really hoping that it'll be implemented in firmware at a later date.

 

All the best

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Sorry if I still haven't quite got it but are you saying that I can't let auto iso take care of the exposure when I have set the shutter speed and aperture manually as I can in the M9. I use this set up a lot for street work where I need a set aperture and shutter speed so to be honest If I can't do this I would honestly start considering to cancel my order of the new M. This is a vital function for me

 

Have just found that on page 167 of the manual it actually says it is not available in manual so it is not a bug!!! Are they mad!!

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Edited by viramati
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Not simple! You have to do two things, go to manual and turn off Auto Iso. This is annoying, if You turn from automatic to manual from case to case in diffucult light situations.

 

Elmar

 

Perhaps.... But not as annoying (to me) as wanting a fixed shutter speed, fixed aperture and auto-ISO and not being able to get it.

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Have found this so at least you can set a minimum shutter speed of 1/500s. I can live with that

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Edited by viramati
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