designdog Posted July 5, 2018 Share #1 Posted July 5, 2018 Advertisement (gone after registration) A few days ago I visited the Napolean exhibit at our local museum, along with my wife and the M10. The exhibit was darker than most, as it featured some very lovely projected backgrounds. (An aside: I sometimes appreciate the art of presentation of gallery pieces more than I do the actual pieces themselves.) I had the auto ISO set to 2500 and 1/60 (I think.) I have only returned to Leica for a couple of months now, and like most newbies, was concentrating mightily on getting shots in focus - in this low light. I was using the 50mm Summilux ASPH. To my dismay, upon viewing them later in Lightroom, many shots were not in focus. Really dispiriting - until I noticed the shutter speed: 1/12 sec (thank you firmware upgrade!) Well, no one is going to get focused shots handheld at that shutter! So I wonder, what happens when the auto iso reaches its limit? When, in this case, 2500 and 1/60 is not going to get an exposure? To me, the correct result would be the camera does not let you take the shot. Is that the case? If so, I must not be setting it up correctly. Another observation. I was so intent on my focusing that I looked right past the shutter speed indicator. Must practice better technique... Quote Link to post Share on other sites More sharing options...
Advertisement Posted July 5, 2018 Posted July 5, 2018 Hi designdog, Take a look here Auto ISO - At the Limits. I'm sure you'll find what you were looking for!
Jim Handsfield Posted July 5, 2018 Share #2 Posted July 5, 2018 Why set the auto ISO so low? I have mine set at 8000 (my SL is set to 12500). Images get a little grainy above 6000, but a grainy photo is better than no photo. Quote Link to post Share on other sites More sharing options...
Jager Posted July 5, 2018 Share #3 Posted July 5, 2018 No. IMO the worst behavior a camera can exhibit is not to take a picture when you press the shutter. The behavior you observed is correct. You told the camera not to go higher than ISO 2500... and so it dutifully did its best, giving you the shutter speed that the meter told it was correct, given the max ISO instruction and whatever aperture you had it set at. An observation... photographers who routinely rely on automated functions like Auto-ISO and Aperture-Priority frequently run afoul of things like you did because they are not used to paying attention to things like light levels and ISO and aperture and shutter speed. If you had been shooting in manual, you would have been forced to pay attention to those things - and they quickly become second nature. Which is another way of saying you can use them as a tool, or you can use them as a crutch. Work on making them the former! 1 Quote Link to post Share on other sites More sharing options...
elmars Posted July 5, 2018 Share #4 Posted July 5, 2018 When maximum Auto Iso is reached the camera takes longer exposure times and makes the picture with it. Quote Link to post Share on other sites More sharing options...
elmars Posted July 5, 2018 Share #5 Posted July 5, 2018 This was for A-mode. When You choose the time manually the picture gets underexposed. Quote Link to post Share on other sites More sharing options...
M11 for me Posted July 5, 2018 Share #6 Posted July 5, 2018 Set Auto ISO to 25‘000. Quote Link to post Share on other sites More sharing options...
M11 for me Posted July 5, 2018 Share #7 Posted July 5, 2018 Advertisement (gone after registration) And M to 12‘500 so that you can just turn the ISO wheel allaround and have 100 to 25‘000 at your fingertips 1 Quote Link to post Share on other sites More sharing options...
JAC Posted July 5, 2018 Share #8 Posted July 5, 2018 For sure one of the main things I've had to pay attention to since switching to Leica from Canon (image-stabilized) was shutter speed. Either manually select ISO to provide appropriate shutter speed or move the maximum auto ISO to something like 10,000. Quote Link to post Share on other sites More sharing options...
magixaxeman Posted July 14, 2018 Share #9 Posted July 14, 2018 (edited) On a slightly different subject.... I managed a hand held exposure the other night of 1/4 second @ f4 ISO 2500, whilst trying out a new soft release, the subject was my curtains shot with a Voigtlander 75mm F2.5 and was in focus! I was completely shocked at how much the soft release damped out camera shake. 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! Edited July 14, 2018 by magixaxeman Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/286297-auto-iso-at-the-limits/?do=findComment&comment=3555460'>More sharing options...
M11 for me Posted July 14, 2018 Share #10 Posted July 14, 2018 Thats amazing. But do you really think, that the soft release would make that difference? I have one too but I did not understand its advantage yet. You must just have a very steady hand :-) Quote Link to post Share on other sites More sharing options...
HELM Posted July 17, 2018 Share #11 Posted July 17, 2018 regarding very high ISO (12,500 vs 25,000) has anyone compared 12,500 plus Lightroom processing vs 25,000 plus Lightroom processing? I know I will go try it but any thoughts on optimal processing workflow would be ideal. Last week I shot a lighthouse in pitch black (light obviously overexposed) and used Lightroom to smooth the noise out ... Didn't think to try 25,000 as well as I had capped AutoISO at 12,500 I believe. 25,000 just boosts the sensor data (right?) and I'm trying to understand if Lightroom's algorithms are better than Leica's in camera boost really an optimal workflow questions Thx Quote Link to post Share on other sites More sharing options...
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