u/AfterAd7874

Am going to a bortle 2-3 place and planning to shoot a milkyway timelapse 6:30pm-2/3am which starts an hour before sunset

Am using a canon eos 250d with its kit lens at 18mm 3.5f,
I would really love a result even close to this video:

https://youtu.be/HqV06DTSZ7A?si=PTwKwlNjnEePy4pB

Am confused about a couple of settings

I understand to use aperture priority and
set the iso cap at 6400, and auto shutterspeed,

Question #1. How would the camera know if the picture looks good since am using auto shutterspeed

Question #2. Whats the interval time i should use? Am looking for the smoothest possible results or is it better to use timelapse mode

The end results am looking for are a super smooth 15-30sec video total (even if sped up later), no star trails no ‘lag’ or ‘jumping stars’

Gear:
Canon eos 250d
Canon kit lens 18-55mm
Tripod
Interval remote (pixel pro)

This was a few months ago and unfortunately i used ALT AZ Mode at the time. I am very certain that anyone better at processing than me could pull out a lot more details and quality,
if anyone would like to have a try please tell me and i will send the stacked image,
I would love to see your results!!

Integration: 15hrs 16mins. 5500x10s alt az
Bortle: 8-9
LP filter enabled

Has anyone taken their S50 to a sandy desert?
And any advices about doing so?
I do have dew/dust shields + a wind cover like the one i attached