Correct la, i did said depends on location and when u shoot lol

Indoor and evening shot where light is dimmer or less light, it is ok to crank the ISO but compensate with right aperture and shutter speed. Some juniors i met so afraid to crank iso higher than 3600 because worried will be too noisy, so they ended taking darker shot and post process it

Correct. Faster lens produce better shots

Correct. Faster lens produce better shots

Faster lens just have the ability to shoot with shallower depth of field. It wont have the ability to produce better shots.

bigger aperture reduce depth of field la...

i would prefer m-mode

set the safe shutter speed according to the environment/movement
lens/sensor stabilization works for stationary

set the aperture size according to your intended depth of field

set the iso to auto, some ppl might put a capped on max iso
exposure indicator will blink if under or over exposed, that time baru re-adjust shutter speed and/or aperture size.

adjust exposure compensation when needed

TLDR : Ur sifu probably said stick to lowest ISO (100 or 50) if possible for less noise. Not true as it depends on where and when u shoot.

Using Higher ISO has less noise than lower ISO but darker due to shutter speed, and if u in try to lower shutter speed to compensate light, Ur frame will not be sharp.

Sekian terima kasih

Anyone still saying we must stick to ISO 100 or ISO 50?
Is that from a photography book/magazine published 20 years ago?

Looks like this guy is making beginners more confused.

Comparing low vs high ISO as same shutter speed, then of course the low ISO picture will be darker. Then increase brightness digitally to show more noise and say lower ISO more noise. 

Try to shoot picture at correct exposure with low ISO and also with high ISO, meaning the low ISO one with longer exposure compare to the high ISO one. This will give both picture with same brightness. Then magnify the picture to see which one is grainier. I can bet the the one with high ISO will have more noise.

Your statement is only valid looking at one perspective. 

is this noisy?