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Auto Exposure Bracketing


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There seem to be plenty of good arguments FOR AEB and I have not seen any arguments AGAINST. Certainly, we have seen that Leica Camera has been able to make some useful changes to the firmware; why not this one, too?

 

This is a good thread to raise the profile of this issue. I have seen others mention it off and on in the past and I have added it to at least one 'wish list' on this Forum. Now that many of the old issues are largely sorted out (AWB, for instance), Leica please give us this. It is a glaring and unnecessary ommission from the M8's capabilities.

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Specifically, I recall some shots done on a Yosemite seminar that Guy and Jack organized for M8 users. They picked up just enough shadow detail to really make the images pop. Normally, I think people who use the HDR technique far overdo the application and end up with too much spread in exposure latitude.

 

 

I subscribe 100% to that statement!

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Interesting thread. My Contax RX many years ago was the first camera I encountered with autobracketing. It was useful when shooting slide, in those pre-photoshop days. That brings me to two questions...

 

1. Now that we have RAW is it really necessary?

2. Does anyone actually like the eyeball-itching shortbread tin lid unreality of HDR imagery?

 

Regards,

 

Bill

 

1. Of course necessary. In effect, you have more latitude to work with, just as you had with slide film.

 

2. Already answered by fotografr.

 

By the way Bill, I still have my (mint) Contax RX, just can't part with it!

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I subscribe 100% to that statement!

 

Me too... HDR, imho, HAS a potential... that must be exploited with right judgement and taste: I made some quick trials just to see "how it works" and images were funny colored and no more; but given that, in right hands & minds it is undoubtly an interesting tool; so, auto exp. bracketing feature on M8 would be interesting : interesting, not essential, for I tend to think that to have the best from HDR, probably is better to use tripod-taken pics, static subjects, and maybe "fiine tuned" exposure variations.

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I often use HDR shots on both DSLR and with the M8.

 

I would agree that a lot of the photo mags and samples out there look like crap IMHO. This doesn't have to be the case at all if you're subtle with the technique and use tools like Photomatix. That said, my preference is with GND's but not so easy with the M8 ...

 

As regards an AEB function - YES PLEASE. I would add also that it should go beyond the traditional AEB with 1/3, 1/2 or full stops but allow you to say set up a bracket of 3 or 5 shots, 2EV apart. These are the most useful for HDR work and something even my beloved D3/D700 won't do without shooting the intermediate frames.

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For Bill Palmer, with a bemused expression on my face, arising from my illiteracy in the slang of somewhere (I live in US)"

 

"2. Does anyone actually like the eyeball-itching shortbread tin lid unreality of HDR imagery?"

 

WHAT does this mean?

 

Thanks for the fun, and I await eagerly.

 

I'm not sure Bill will forgive my presumption, but here goes anyway .... It's a wonderful example of British colloquial understatement. I'd interpret it thus:

 

'Does anyone actually like' = 'I can't stand it personally, don't know anyone who does and if they do they have appallingly bad taste'.

 

'eyeball-itching' = the correct medical term for an optic nerve-generated psychological condition (bordering on the pathological) that must be endured because there is no means to relieve it. It is thought to have its origins in a pyschosomatic aversion to excessively exaggerated colours overtly delineated through the multi-layering of an image of nothing in particular.

 

'shortbread tin-lid' = a razor-sharp description of any image that is sufficiently tacky to make it on to the lid of the tins of biscuits (cookies to foreigners) you see in the British souvenir shop in Heathrow Duty Free.

 

'unreality of HDR' = the very concept of high dynamic range is fundamentally flawed.

 

Put this all together and the sentence reads:

 

'HDR images are total crap'.

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I'm not sure Bill will forgive my presumption, but here goes anyway .... It's a wonderful example of British colloquial understatement. I'd interpret it thus:

 

'Does anyone actually like' = 'I can't stand it personally, don't know anyone who does and if they do they have appallingly bad taste'.

 

'eyeball-itching' = the correct medical term for an optic nerve-generated psychological condition (bordering on the pathological) that must be endured because there is no means to relieve it. It is thought to have its origins in a pyschosomatic aversion to excessively exaggerated colours overtly delineated through the multi-layering of an image of nothing in particular.

 

'shortbread tin-lid' = a razor-sharp description of any image that is sufficiently tacky to make it on to the lid of the tins of biscuits (cookies to foreigners) you see in the British souvenir shop in Heathrow Duty Free.

 

'unreality of HDR' = the very concept of high dynamic range is fundamentally flawed.

 

Put this all together and the sentence reads:

 

'HDR images are total crap'.

 

That is absolutely word-perfect. I have never been "subtitled" so accurately before in my life. I shall print this out and frame it! :D

 

Regards,

 

Bill

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  • 8 months later...
I often use HDR shots on both DSLR and with the M8.

 

I would agree that a lot of the photo mags and samples out there look like crap IMHO. This doesn't have to be the case at all if you're subtle with the technique and use tools like Photomatix. That said, my preference is with GND's but not so easy with the M8 ...

 

As regards an AEB function - YES PLEASE. I would add also that it should go beyond the traditional AEB with 1/3, 1/2 or full stops but allow you to say set up a bracket of 3 or 5 shots, 2EV apart. These are the most useful for HDR work and something even my beloved D3/D700 won't do without shooting the intermediate frames.

 

I fully agree a AEB function in a future firmware update would be super. If bracketing is selected in a menu then the C position of the on/off switch could be used for bracketing and the S for single shot. A nice clean solution.

 

Concerning the looks of HDR images - yes many are overdone which is usually the case when something new is available - the maturer members will remember the awful type setting that was done when PC users had free reign over many different fonts. The same applies to HDR

 

Leica can surely think of the advantages for photographing difficult scenes which I experienced when photographing in the Swiss alps with sunny snow, shaded mountain and clouds - they added Auto ISO so they could add AEB

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I think AEB would be very useful.

 

If implemented, I would prefer to have it operate post-exposure, i.e., applying adjustments to the image in memory rather than taking a series of separate exposures in repetition.

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Concerning the looks of HDR images - yes many are overdone which is usually the case when something new is available - the maturer members will remember the awful type setting that was done when PC users had free reign over many different fonts. The same applies to HDR

 

Most HDR adepts forget that its results can be interesting when converted to B&W: here are some examples in the Photo Forum: http://www.l-camera-forum.com/leica-forum/landscape-travel/85417-scotlands-clouds-3-more-hdr-pictures.html#post894925

 

I agree however that in color the results can be awful. As to the usefulness of some bracketing possibilities combined with HDR: there is a caveat! It will never work well without a tripod :o. Also you will to put WB and ISO on manual, and the bracketing has to be done with the shutterspeed. Which is the only way the camera could of course.

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The common misconception. The M8 is a manual camera with some autofeatures added. Once it is used properly i.e. manual, and the user has thrown off the auto-mindset, it becomes the easiest camera in the world to bracket. Set exposure: red dot and shoot, shutterwheel one click to the left red arrow and shoot shutterwheel two clicks to the right opposite red arrow and shoot. Voila! Bracketed.

It is even better than autobracket, because one can use the aperture the same way.

Nothing against auto-bracket, but it is totally redundant.

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I think AEB would be very useful.

 

If implemented, I would prefer to have it operate post-exposure, i.e., applying adjustments to the image in memory rather than taking a series of separate exposures in repetition.

Why wouldn't you do that in RAW conversion in your computer? The camera lacks computing power to do that kind of thing properly. Even a single Jpeg is problematic.

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Set exposure: red dot and shoot, shutterwheel one click to the left red arrow and shoot shutterwheel two clicks to the right opposite red arrow and shoot. Voila! Bracketed.

It is even better than autobracket, because one can use the aperture the same way.

Nothing against auto-bracket, but it is totally redundant.

 

Agreed Jaap; that is the way I use it. But shutter speed bracketing (if technically possible) could be nice to have, nothing more.

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The few stops exposure latitude one finds in RAW are, in my experience, insufficient to do HDR.

Well, it helps.. But I agree with that, I was just answering the idea of doing that in-camera.

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Guest WPalank

Jaap,

 

I think where the feature might be most useful is in HDR hand held shots when the tripod was left at home.

 

Set auto-bracket and aperture, lean up against something rigid, compose scene, hold breath, depress shutter, click-click-click.....

 

If you use Photomatix Pro and set the correct parameters in the software, it does a very nice job of lining up the images and processing even when not shot from a tripod.

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