2351HD Posted March 3, 2013 Share #1 Posted March 3, 2013 Advertisement (gone after registration) Hi all. I am hoping that those with the new M can answer a few questions that I have. 1. What the the max exposure time in bulb that you can get at ISO 200, 400, 800. Eg, is it 60 secs at 200, 30 secs at 400 etc. 2. If you are using a wide angle lens say 21mm or 18mm, are you seeing better corner sharpness with the new sensor design? 3. If you select one of the new metering modes but still want to use the rangefinder window, does the camera go into live view, or just open the shutter to do the metering and keep the screen off? 4. When in focus assist mode (magnified), is the focus peaking still visible or does it switch off. Also, is the magnified view close to 1:1, or is it less or more. Many thanks, Scott Link to post Share on other sites More sharing options...
Advertisement Posted March 3, 2013 Posted March 3, 2013 Hi 2351HD, Take a look here New M Questions. I'm sure you'll find what you were looking for!
mjh Posted March 3, 2013 Share #2 Posted March 3, 2013 1. What the the max exposure time in bulb that you can get at ISO 200, 400, 800. Eg, is it 60 secs at 200, 30 secs at 400 etc. 60 seconds at ISO 200, 30 seconds at ISO 400, 15 seconds at ISO 800, and 8 seconds at ISO 1600 and beyond. 3. If you select one of the new metering modes but still want to use the rangefinder window, does the camera go into live view, or just open the shutter to do the metering and keep the screen off? The latter. 4. When in focus assist mode (magnified), is the focus peaking still visible or does it switch off. If focus peaking is turned on in the menu, it will work at any magnification setting – the higher the magnification the more reliable it is. Also, is the magnified view close to 1:1, or is it less or more. It is about 1:1. Link to post Share on other sites More sharing options...
2351HD Posted March 3, 2013 Author Share #3 Posted March 3, 2013 Thats excellent, thanks. A little disappointing about the exposure times though. I do a lot of exposures up to 120 seconds at ISO160 on my M9, so only 30secs at ISO400 is limiting, but close. Scott Link to post Share on other sites More sharing options...
theno23 Posted March 3, 2013 Share #4 Posted March 3, 2013 The long exposure is annoying, I've done some ISO160 exposures at about 2 mins to get clean files in dark landscapes. You can't reliably stack either, because you can't disable the long exposure NR - e.g. if there's moving lights in the scene, like star trails, or car lights. Bit of a shame, only thing I've found that the M9 does better, so far. - Steve Link to post Share on other sites More sharing options...
philipus Posted March 3, 2013 Share #5 Posted March 3, 2013 Is there a technical reason why the M won't have the same max bulb length across ISOs (related to the new sensor perhaps) or is a choice by Leica (for some reason)? Link to post Share on other sites More sharing options...
theno23 Posted March 4, 2013 Share #6 Posted March 4, 2013 Is there a technical reason why the M won't have the same max bulb length across ISOs (related to the new sensor perhaps) or is a choice by Leica (for some reason)? I would imagine it's something to do with the sensor, maybe it overheats? It can do more that a minute of video, obviously, but that's not running the sensor constantly, or maybe the heat noise doesn't show on video? Who knows. - Steve Link to post Share on other sites More sharing options...
mjh Posted March 4, 2013 Share #7 Posted March 4, 2013 Advertisement (gone after registration) Is there a technical reason why the M won't have the same max bulb length across ISOs (related to the new sensor perhaps) or is a choice by Leica (for some reason)? The problem with long exposure times is that noise increases with the exposure time. The amplification associated with high ISO settings exacerbates noise issues so the higher the ISO setting the faster do you reach a point where noise would be unacceptable. Link to post Share on other sites More sharing options...
tgm Posted March 4, 2013 Share #8 Posted March 4, 2013 The problem with long exposure times is that noise increases with the exposure time. The amplification associated with high ISO settings exacerbates noise issues so the higher the ISO setting the faster do you reach a point where noise would be unacceptable. I was already dissapointed to read that 60 s is the maximum exposure time, but now learnig that for ISO 1600 and above it is only 8 s is even more dissapointing. Why does noise increase with exposure time? How does other manufactures handle that problem, e.g. Canon cameras are quite popular for taking pictures of the night sky? Might there be a solution (new firmware?), or expose at ISO 200 and push in Photoshop? Thomas Link to post Share on other sites More sharing options...
thighslapper Posted March 4, 2013 Share #9 Posted March 4, 2013 Thats excellent, thanks. A little disappointing about the exposure times though. I do a lot of exposures up to 120 seconds at ISO160 on my M9, so only 30secs at ISO400 is limiting, but close. Scott swings and roundabouts ..... ..... and a good reason to hang onto your M9....... Link to post Share on other sites More sharing options...
mjh Posted March 4, 2013 Share #10 Posted March 4, 2013 Why does noise increase with exposure time? Because of dark current and because the sensor heats up over time, so there’s even more dark current. Link to post Share on other sites More sharing options...
tgm Posted March 5, 2013 Share #11 Posted March 5, 2013 Because of dark current and because the sensor heats up over time, so there’s even more dark current. o.k. this is a problem of all DSRL cameras, but why is Leica restricting the bulb modus, especially for hight ISO to only 8 s? As far as I know, no other manufacture is doing that. My question again, could it be cured with a new firmware? Thomas Link to post Share on other sites More sharing options...
mjh Posted March 5, 2013 Share #12 Posted March 5, 2013 but why is Leica restricting the bulb modus, especially for hight ISO to only 8 s? As I said: because of noise. There are limits to what Leica deems acceptable. Otherwise ISO settings and exposure times could be set to arbitrary values. As far as I know, no other manufacture is doing that. I’m not so sure about that. My question again, could it be cured with a new firmware? The restriction could be lifted, sure. The question is whether it would be worthwhile. You could try it for yourself: Do a 60 s exposure at ISO 200 and then push towards ISO 6400 in the raw converter. Link to post Share on other sites More sharing options...
PeterP Posted March 5, 2013 Share #13 Posted March 5, 2013 Has anyone tried Panasonic EVF or Olympus EVF on the M. Which of these if any work and which don't work. Link to post Share on other sites More sharing options...
mjh Posted March 5, 2013 Share #14 Posted March 5, 2013 The Olympus VF-2 (same viewfinder, slightly different design) is compatible, others are not. Link to post Share on other sites More sharing options...
PeterP Posted March 5, 2013 Share #15 Posted March 5, 2013 The Olympus VF-2 (same viewfinder, slightly different design) is compatible, others are not. Thank you Michael! Link to post Share on other sites More sharing options...
tgm Posted March 5, 2013 Share #16 Posted March 5, 2013 As I said: because of noise. There are limits to what Leica deems acceptable. Otherwise ISO settings and exposure times could be set to arbitrary values. I’m not so sure about that. The restriction could be lifted, sure. The question is whether it would be worthwhile. You could try it for yourself: Do a 60 s exposure at ISO 200 and then push towards ISO 6400 in the raw converter. Thanks a lot, I will try that. Thomas Link to post Share on other sites More sharing options...
UliWer Posted March 6, 2013 Share #17 Posted March 6, 2013 I think I read it anywhere here, but I can't find the posting; though perhaps I just misunderstood something. Have there been changes for the system of lens detection with the M 240? I remember having read that the camera detects a coded lens - even if lens detection is switched off. With the M 9 "off" meant "off", so there was no detection of coded lenses. Did somebody try this out? First of all: Is it true? Does the new M detect a coded lens when lens detection is switched off? (You should see this on the "Info" display and of course in the EXIF). If yes: how does the camera react, when a coding was selected from the manual list: will a coded lens override your manual selection from the list, when lens detection is set to "manual" or will your selection from the list prevail against another coded lens? Link to post Share on other sites More sharing options...
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