Is auto and manual when i press estimate are same or there is different between these

sorry my english not good

i want know what exactly different between auto and when i press estimate in manual

i know when i prees estimate chech best setting for whole video so this setting will run for the whole video

what i want to know exactly is auto option always check the video every 10 seconds or every one minute
because i think some video are in the beginning are need high sharping and in the last the video need low sharping so so estimate maybe not always good for the whole video

Auto checks every 8 frames if I am not mistaking, while if you use Manual and Estimate it takes that value you set and use it for the entire video.

Yes. Auto is like pressing Estimate in Manual every 8 frames and applying those changes automatically.