Hi @PINOTNOIR As far as I am aware the 100D does not have scene modes for sunset or fireworks unlike many other cameras so it is time to get down and dirty with settings. I am not going to go into long explanations, but just make suggestions to what you can try.
FIREWORKS Tripod Wide angle lens (18-55mm covers this) Prefocus or focussed at infinity Av mode with aperture set to F5.6 or F8 ISO set to 100 with 'high iso long exposure' turned off Timed exposure of about 5 or 6 seconds. Hints - Try to focus your lens before the event. Be aware that smoke and haze might spoil pictures the further you get into the event so shoot at the start of the display. You can also try shooting video and pick out single frames in post.
SUNSETS Tripod Lens optional (prefer to use 18-55mm and zoom in) Av priority set to F11, F16 or at a push F22 Shoot RAW or RAW+JPG if you might want to post process. Compose in Live View (Don't look at sun through viewfinder.) ISO set low to either 100 or 200
I present these suggestions as starting points only. You may have to refine them to suit your environment. Good Luck PBked
Comments
As far as I am aware the 100D does not have scene modes for sunset or fireworks unlike many other cameras so it is time to get down and dirty with settings. I am not going to go into long explanations, but just make suggestions to what you can try.
FIREWORKS
Tripod
Wide angle lens (18-55mm covers this) Prefocus or focussed at infinity
Av mode with aperture set to F5.6 or F8
ISO set to 100 with 'high iso long exposure' turned off
Timed exposure of about 5 or 6 seconds.
Hints - Try to focus your lens before the event. Be aware that smoke and haze might spoil pictures the further you get into the event so shoot at the start of the display. You can also try shooting video and pick out single frames in post.
SUNSETS
Tripod
Lens optional (prefer to use 18-55mm and zoom in)
Av priority set to F11, F16 or at a push F22
Shoot RAW or RAW+JPG if you might want to post process.
Compose in Live View (Don't look at sun through viewfinder.)
ISO set low to either 100 or 200
I present these suggestions as starting points only. You may have to refine them to suit your environment.
Good Luck
PBked