Am I going nuts? Inexplicable file size reduction!

[Alexander Wolf]

I switched to ProRes…

[Adriel Almirol]

If we’re talking data rate being the measure of quality, then factually yes. The eye test is different though, the quality gap is not as discernible.

Here’s a comparison of the data rate when compressing a file to Photo JPEG using Compressor 4 vs QT7 Pro.
https://imgur.com/wDGBWA6

View post on imgur.com