What’s HLG Photograph? Panasonic S1 function defined in full

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Imaging and show applied sciences have superior in recent times, bringing new prospects past the normal methods of working due to excessive dynamic vary requirements (HDR). HLG Photograph – as accessible within the Panasonic S1, S1R and S1H full-frame mirrorless cameras – is one such commonplace. However what precisely is it, how does it work and why may you want it?

Capturing HDR

HDR content material – that is excessive dynamic vary to show not solely a fuller vary of peak brightness and shadow element all inside a single body, but additionally a wider color gamut – is speak of the city for the highest Hollywood film and streaming companies content material. All the newest TVs are capable of show HDR content material, which many see as extra integral than the continued decision race.

However there are a number of HDR codecs used. HLG – which stands for hybrid log gamma – is a royalty-free HDR commonplace co-developed by the BBC, extensively designed for stay HDR broadcast, which can also be backwards appropriate with lesser succesful non-HDR shows (extra not too long ago referred to as commonplace dynamic vary (SDR)).

For the Panasonic Lumix S1, HLG Photograph represents a fuss-free method to seize an HDR picture for screen-based show, saved as an HSP file. The file is an addition to the Uncooked/JPEG information additionally captured, so needn’t impression working apply – it is merely toggled on or off throughout the menu settings.

Full dynamic vary preview

Being a show format means precisely that: you’ll be able to solely present an HLG Photograph by way of an HDR show. Whether or not that is a wirelessly linked HDR TV, a tethered Atomos display screen, or different output format.

Why may this be helpful? Consider an HLG Photograph as a raw-like file that reveals the total dynamic vary inside a single shot, with out you needing to course of the file (certainly, it isn’t potential to edit an HSP file).

Studio photographers utilizing a related show will be capable to see if that important spotlight has clipped an excessive amount of and alter accordingly, for instance. Panorama photographers will be capable to see if that daylight breaking via the cloud cowl has simply sufficient element recoverable inside it. It is an ideal preview methodology, figuring out you’ll be able to extra completely work a nonetheless picture later down the road.

Display show with broad color

Because the world strikes away from paper and into an ever extra digital atmosphere, various photographers will shoot with the only real intent of exhibiting on a show. HLG Photograph acts as an ideal output format: whether or not to digital billboards, TV display screen slideshows and so forth.

As a result of HLG is an HDR commonplace it additionally utilises a wider color gamut than the sRGB of a JPEG file. Which means a wider palette and extra pure color rendition with out over-saturation along with these increased peak highlights.

What about metadata and processing?

At this stage the Panasonic Lumix S1 captures an HLG Photograph and it is contained throughout the HSP file format.

These aware of different HDR codecs typical for transferring photographs – HDR10, HDR10+, Dolby Imaginative and prescient – might ponder whether the related metadata in an HSP file is offered to edit. At this stage it isn’t – as that is the purpose of HLG being an ordinary that is designed to ship constant outcomes, therefore it being a closed file that is not editable.

In abstract

HLG Photograph is a no brainer function to activate throughout the Panasonic Lumix S1, S1R and S1H. It may be captured in a selection of full-resolution or 4K sizes (with the file-size equating to roughly half that of a JPEG) alongside your standard Uncooked/JPEG workflow.

For execs within the studio or within the subject it represents an effective way to preview full dynamic vary – artwork administrators and editors can shortly see the total vary on a display screen output, for instance – whereas these wishing to shortly show HDR photographs with more true, wider color profile could make greatest use of slideshows in HDR.

HLG Photograph is step one into the way forward for the place digital imaging is headed; it is a foot into an HDR future that is affecting visible imagery the world over.

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