M11 3 resolutions v min shutter speed

[SJH]

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Whilst I appreciate that it’s been covered several times (including Leica Australia’s YouTube video) that the M11 at 60mb has a recommended minimum shutter speed of 1/4f, I haven’t really seen anything regarding the 36 and 18mb options. Whilst it seems from many reviews now that there doesn’t seem to be much of a DR of ISO advantage using these (36 & 18mb) with my M10P (24mb) in the past I could shoot at roughly 1/1f and then my M10R (40mb) I could quite happily do at 1/2f. 

Now I know it does depend on the photographer of course but does this mean that a plus of the M11 is you can shoot at 60mb (and the minimum recommend 1/4f) but then if you’re shooting in conditions with poor light you can drop to 36mb at 1/2f and then go further to 18mb at 1/1f if you need to for sharp shots etc.

[hdmesa]

Some have reported that the M11 36/18mb modes show more motion blur than the 24mp M cameras. I find the M11 no different than the M10-R and M10M: keeping the time wheel at 1/250 sec. for 28-35mm and 1/350 sec. for 50-75mm helps keep images reliably sharp at high magnification.

 

[jaapv]

The showing of motion blur depends on pixel size. As that does not change regardless of the resolution there should be no difference when downsizing in-camera. 

[FlashGordonPhotography]

It has zero to do with resolution. Nada. Nothing. Nil. Never has. Never will.

It has everything to do with the size of output. Make big prints you need to be more steady. To show off stuff on your phone you can get away with a bit more.

The ONLY reason you might shoot at higher shutter speeds at higher resolutions is when you make bigger prints from those high resolution files. So if you intend to make bigger prints or files from your M11 than you did from the M10R then yes, you need better technique. If not carry on as before. If you output files at no larger than A3 then You don't need any change from 24 to 36 to 60MP. If you intend to shoot at A1 you do.

Examining files at a pixel level and then only showing off files on an iPad is NOT the way to work out your personal minimum shutter speed. Nor are arbitrary figures like resolution or a particular shutter speed that someone else uses. Look at your maximum output size and work backwards.

Gordon

[FlashGordonPhotography]

7 hours ago, hdmesa said:

Some have reported that the M11 36/18mb modes show more motion blur than the 24mp M cameras. I find the M11 no different than the M10-R and M10M: keeping the time wheel at 1/250 sec. for 28-35mm and 1/350 sec. for 50-75mm helps keep images reliably sharp at high magnification.

 

It's more likely that Leica isn't applying as much sharpening to the low resolution files as some might expect. When downrezzing from the native size files need to have some sharpening applied. Same as the algorithms in Photoshop do in the background. Those that do sharpen the files seem to feel they are all but indistinguishable from downsizing in Photoshop. Whether Leica should apply more sharpening in their algorithm or leave it up to the end user is debatable.

Currently I do almost no sharpening to the 18MP files and a little more to the 36MP files over my normal workflow. The small files of the M11 are lovely.

Gordon

[hdmesa]

1 hour ago, jaapv said:

The showing of motion blur depends on pixel size. As that does not change regardless of the resolution there should be no difference when downsizing in-camera. 

The person here reporting this wasn't comparing 60mp with the down-sized 36/18, they were comparing the downsized files with their other 24mp M. I can't vouch for their tests, just passing it along since no one refuted it specifically, either.

14 minutes ago, FlashGordonPhotography said:

It's more likely that Leica isn't applying as much sharpening to the low resolution files as some might expect. When downrezzing from the native size files need to have some sharpening applied. Same as the algorithms in Photoshop do in the background. Those that do sharpen the files seem to feel they are all but indistinguishable from downsizing in Photoshop. Whether Leica should apply more sharpening in their algorithm or leave it up to the end user is debatable.

Currently I do almost no sharpening to the 18MP files and a little more to the 36MP files over my normal workflow. The small files of the M11 are lovely.

Gordon

Yes, I posted a test a while back on FM Forums showing exactly that – always use 60mp for highest IQ. But I also showed that well-sharpened binned 36/18mp files only show lower IQ at 300% magnification – basically zero difference unless you're planning to make prints measured in meters.

On DPR Leica forum, Jim Kasson helped me test aliasing on the M11, and the results showed that the binned 36/18mp files show noticeably more aliasing (for subjects that are prone to aliasing such as the test chart used) than the full 60mp files downsized manually in PS. That may not be relevant for many subjects, though, just something to be aware of.

[jaapv]

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Sharpening, at least  USM sharpening has nothing to do with it either It is nothing more than edge contrast enhancing.