Is a 2-pass export to h.264 a waste of time for a ProRes 422HQ source file?

[Guy Burns]

I have an black and white aerial photo taken in 1971 during the mapping of Tasmania. It's a very large file 16000 x 15000 shot on a 7x7 inch negative. In Premiere, I pan and zoom on the image, and when I export to H.264 it fails every time. But exporting to ProRes works. I need the export to be in H.264, so I'm going to import the ProRes into Premiere and export as H.264.

Normally I use 2-pass, but I'm thinking: Is that a waste of time when the source is ProRes?

[MyerPj]

You can save a master (oops word cops) copy and make h.264 from that. I take it the video is not 16000 x 15000.

Try Shutter Encoder to transcode, it's a very cool software. (Donation-ware and worth it)
https://www.shutterencoder.com/en/