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DNG Converter - Lossy long term quality for still images - Printable Version

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DNG Converter - Lossy long term quality for still images - latsap - 2018-11-13

Hi all,

We are now making lots of Timelapses for our Architectural clients. Multiple cameras over the course of multiple days.

Whilst I generally always convert to DNG when importing, I have only just realised the storage space savings of the Lossy conversion.

We often sometimes return to our timelapses to extract particular frames to deliver as still images.

Will i loose any quality from a (say 5dsr or A7rII) file that has been converted to dng with lossy compression as opposed to the original raw file?
If so...what?

Thanks for the help.

Cheers

Andrew


RE: DNG Converter - Lossy long term quality for still images - gwegner - 2018-11-14

With the lossy formats you will loose details in the shadows. If you need a huge dynamic range, I don't recommend doing so. For long term timelapse, it should be fine however, since mostly you won't push the shadows so much when editing.


RE: DNG Converter - Lossy long term quality for still images - latsap - 2018-11-14

Thanks Gunther. If that's the case, we'll use them for the daylight cameras, but not the day to night transitions...
These aren't multi week projects, just over the course of 1-2 days. Similiar to the one I posted in the forum recently.

Really appreciate you getting back to me. on this.
Best
Andrew