Hasta La Motion!

I am working with 6k panorama that is originally output from PTGui as EXR. Once I am done with cleaning up (simply exposure and WB adjustment) in Nuke and write it out as EXR, the file size jumps from about 55 mb to 200 mb. I tried all the compression types available in Nuke (PIZ, ZIP, RLE, even the B44), and the only way to get the output EXR close to 50 mb is to set the datatype to 16 half-float which is not what I want.

Interestingly, I bring both the original 6k EXR (50 mb) and the one output from Nuke (200 mb) into Photoshop and save as a different file name, both EXR files end up about 50 mb.

Am I forgetting something while writing out the EXR in Nuke?

Thanks,
Jason