D+ on a 7D

nibbley-uk

nibbley-uk

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Name
Darren
Edit My Images
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Without trawling through my manual can anyone tell me what the symbol D+ on the top right corner on my rear screen is as i do not remember seeing it before last weekend and cant remember anything i have set up in the menu to activate it.
Any help would be great.
Darren
 
Nice one cheers for that, not sure why i would of adjusted that but hey ho.
Darren
 
By the way what advantage or use is there of having that setting turned on.
 
"C.Fn II -3 – Highlight Tone Priority
Highlight Tone Priority aims to improve the tonal gradation of highlight areas in an image. All cameras have a fixed dynamic range, or range from shadow to highlight, that they can capture. Highlight Tone Priority shifts some dynamic range from the mid-tones to the highlights to produce smoother tones, with more detail, in the bright areas.

With Highlight Tone Priority set, the ISO range will be limited to 200-6400 and it is indicated by a D+ symbol in the LCD display.

This setting should not be used in low light or when shooting subjects with heavy shadows as it may cause more noise to appear in those areas."
 
Thanks for your replies, just another 1000 settings to understand :shrug:
 
If you're shooting raw then HLTP and ALO (Auto Lighting Optimiser) should both be disabled as they can significantly increase noise in RAW images.
 
CT said:
If you're shooting raw then HLTP and ALO (Auto Lighting Optimiser) should both be disabled as they can significantly increase noise in RAW images.
Click to expand...

There's been some debate about this, and the conclusion, which seems right, is that Highlight Tone Priority impacts the Raw and is embedded (hence the restriction on lowest ISO) but Auto Lighting Optimiser is a post-capture application and only affects the JPEG.

HLTP does increase noise, because it effectively puts an extra stop of ISO gain in the shadow end, in order to hold those extra highlights. I guess that, if this is the effect you want (extended dynamic range, which generally I find I do) it's moot whether it's better to apply it in-camera directly to the Raw, or afterwards in post processing, eg with the Fill Light slider in Lightroom.

I suspect that there's nothing much in it, but in theory doing it in-camera should be better? I've not done any comparison tests myself. But if you decide you don't want the effect after all, you're stuck with a bit more shadow noise...

On the other hand, if you shoot with HLTP and drop the ISO a stop from your normal setting, you should retain the extra highlight detail and the extra shadow noise should be neutralised?
 
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