First image of a black hole in full-resolution PNG format

Hello, everyone,

In celebration of the publication of the first photo of a black hole,
I am making this photo available in full-resolution, 30 megapixels
RGB48 PNG. If anybody needs a large, metadata-rich, publicly-available
PNG reference test image, this could serve that purpose.

7416x4320 pixels, 3x16 bits/pixel, RGB
https://bitbucket.org/ctruta/space/src/master/eso1907a.png

I converted this PNG image from TIFF using OptiPNG, and I optimized it
further using ZopfliPNG. I updated its metadata using Exiftool.

The original image is available in various formats, including
high-resolution uncompressed RGB TIFF, on the ESO website:
https://www.eso.org/public/images/eso1907a/

Enjoy!
Cosmin