rafikiphoto Posted May 30, 2014 Share #1 Posted May 30, 2014 Advertisement (gone after registration) On my Fuji X cameras I was able to set manual mode and then choose both a shutter speed and an aperture setting. The correct exposure would be made by adjusting the ISO. That doesn't happen with the M240 - or have I missed something? Link to post Share on other sites More sharing options...
Advertisement Posted May 30, 2014 Posted May 30, 2014 Hi rafikiphoto, Take a look here Auto ISO to obtain correct exposure?. I'm sure you'll find what you were looking for!
jaapv Posted May 30, 2014 Share #2 Posted May 30, 2014 Yes - you have missed 12.387 posts on the subject Link to post Share on other sites More sharing options...
rafikiphoto Posted May 30, 2014 Author Share #3 Posted May 30, 2014 Yes - you have missed 12.387 posts on the subject Ahhhh! <blush> !! Link to post Share on other sites More sharing options...
ayewing Posted May 30, 2014 Share #4 Posted May 30, 2014 I think this may answer your question. http://www.l-camera-forum.com/leica-forum/leica-m-type-240/329427-new-firmware-may-24th-4.html#post2701341 Link to post Share on other sites More sharing options...
rafikiphoto Posted May 30, 2014 Author Share #5 Posted May 30, 2014 Yes - you have missed 12.387 posts on the subject Well, I did only pick up my M the day before yesterday. .. However, I should have searched first I suppose. Link to post Share on other sites More sharing options...
jaapv Posted May 30, 2014 Share #6 Posted May 30, 2014 Sorry,couldn’t resist…. Link to post Share on other sites More sharing options...
rafikiphoto Posted May 30, 2014 Author Share #7 Posted May 30, 2014 Advertisement (gone after registration) Sorry,couldn’t resist…. Quite right though. Glad a solution seems to be in sight. Link to post Share on other sites More sharing options...
mjh Posted May 30, 2014 Share #8 Posted May 30, 2014 On my Fuji X cameras I was able to set manual mode and then choose both a shutter speed and an aperture setting. The correct exposure would be made by adjusting the ISO. That doesn't happen with the M240 - or have I missed something? While many people seem to be lusting after this feature I still think it is ultimately misguided. But as nobody cares what I think you may still get your way. Link to post Share on other sites More sharing options...
lct Posted May 30, 2014 Share #9 Posted May 30, 2014 I did not use auto iso with manual shutter speeds in the past but i find this feature handy on the Fuji X-E2 so i would welcome it on the M240 if it can be implemented. Link to post Share on other sites More sharing options...
jbl Posted May 30, 2014 Share #10 Posted May 30, 2014 While many people seem to be lusting after this feature I still think it is ultimately misguided. But as nobody cares what I think you may still get your way. I think you're entirely right. I've never used this feature on any of my M's. Link to post Share on other sites More sharing options...
kdriceman Posted May 31, 2014 Share #11 Posted May 31, 2014 Here we go again.... Link to post Share on other sites More sharing options...
250swb Posted May 31, 2014 Share #12 Posted May 31, 2014 Auto ISO is simply a way of achieving correct exposure when you need the shutter speed and aperture to remain constant, such as to stop movement and give enough DOF etc. What can be wrong with that? Steve Link to post Share on other sites More sharing options...
jdsheepdog Posted May 31, 2014 Share #13 Posted May 31, 2014 While many people seem to be lusting after this feature I still think it is ultimately misguided. But as nobody cares what I think you may still get your way. Michael, first let me say that I particularly value your opinion and knowledge, but I am unsure why you consider this "misguided." I saw no real use for it until recently, when I started using the camera (I hate the word "shooting") in dark and downright cavernous industrial environments, and moments later out in bright sunshine, while looking at something hanging on a crane hook. The choices I wanted to make were aperture, usual f 1.4 in consideration of the lack of light, or f 16 because there was too much, and as high a shutter speed as I could, in consideration of camera shake and subject movement. It was at the point that I found myself winding the ISO up and down, that I realized what everybody else was talking about. Link to post Share on other sites More sharing options...
mjh Posted May 31, 2014 Share #14 Posted May 31, 2014 Michael, first let me say that I particularly value your opinion and knowledge, but I am unsure why you consider this "misguided." You might say I’m nitpicking (I hear that all the time so it’s probably true) but ISO isn’t an exposure parameter on a par with f-stop and shutter speed. ISO informs the camera how much light it needs to gather for an optimum exposure, but it doesn’t determine exposure as f-stop and shutter speed do. But the real reason I think the wish for Auto ISO in manual mode is misguided is that you needlessly throw away dynamic range that way. I often use manual mode for saving highlights by deliberately underexposing. Auto ISO would render this void: when the camera cranks up the amplification of the sensor signals the highlights yield voltages overloading the ADC. While I manage to prevent clipping in the sensor by underexposing, Auto ISO ensures the highlights are clipped anyway – by the ADC rather than the sensor, but the result is the same. The only way to effectively prevent clipping is to fix ISO at a low to medium level and to adjust the gamma curve in the raw converter for brightening the image without throwing out the highlights again. Link to post Share on other sites More sharing options...
mirekti Posted May 31, 2014 Share #15 Posted May 31, 2014 I often use manual mode for saving highlights by deliberately underexposing. Auto ISO would render this void: when the camera cranks up the amplification of the sensor signals the highlights yield voltages overloading the ADC. While I manage to prevent clipping in the sensor by underexposing, Auto ISO ensures the highlights are clipped anyway – by the ADC rather than the sensor, but the result is the same. If I understood the point of it, you tend to keep the ISO at the lowest level, and than play with the shutter speed, and aperture to preserve the highest possible dynamic range, and even underexpose to save the highlights. This idea is valid, and after some practice I believe it became your second nature. However, if the light changes very fast, and you need that shot, auto ISO is the best option. If you are worried about keeping the highlights, EV can be adjusted. Link to post Share on other sites More sharing options...
intermediatic Posted May 31, 2014 Share #16 Posted May 31, 2014 I could see your point if there was no manual ISO and I think that after the auto-ISO fiasco (I am a staunch defender of auto-ISO), the one and only thing that could get me to upgrade my M 240 to the next model would be to add an ISO dial to the top of the camera. Setting ISO takes way too long! But what's the rationale for the current system? If I am shooting at f 16 and pick a shutter speed of 1/60, the ISO becomes some random ISO that I have I have not set and that remains a mystery to me? Link to post Share on other sites More sharing options...
lct Posted May 31, 2014 Share #17 Posted May 31, 2014 Auto iso with manual speeds serves to avoid motion blur in low to medium light in my modest experience so i don't see how could blown highlights interfere in the process but i may be missing something. Link to post Share on other sites More sharing options...
CaptZoom Posted May 31, 2014 Share #18 Posted May 31, 2014 If the shutter is set manually and aperture is set manually and ISO is set to auto, what does the exposure compensation do? Link to post Share on other sites More sharing options...
250swb Posted May 31, 2014 Share #19 Posted May 31, 2014 If that is the only criticism of Auto ISO it is clear we've not quite to the point in photography where the camera and the technical process is more important than the resulting image, but it is close if such ideas spread. It is often said that film has more dynamic range than digital, yet there are countless times in the history of photography where the dynamic range of film has failed, but still given us wonderful photographs. I fail to see why the same cannot be true of digital, and if you lose a stop of DR but gain a great picture hands up who would give up the great picture? Yes, I didn't think anybody would put their hand up. Besides which the premise is flawed anyway as in manual exposure mode Exposure Compensation should be also possible alongside Auto ISO. It is with the M9/MM, so unless Leica screw up the firmware update the camera can still be forced to underexpose via the ISO and hence retain highlights/rescue shadows. Steve Link to post Share on other sites More sharing options...
viramati Posted May 31, 2014 Share #20 Posted May 31, 2014 OMG the in and outs of this question do not need to be repeated lets just say that some o usf out there use this feature on other cameras and used to on the M9. what may not be useful to some is to others. Chill Link to post Share on other sites More sharing options...
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