Canon EOS M50 User Manual page 235

Select and erase
z
images: Choose an
image →
button → [OK]
Erasing Multiple Images at Once
You can choose multiple images to erase at once. Be careful
when erasing images, because they cannot be recovered.
Select range: Choose
z
the first image →
choose the last image
→ button
→ [OK]
(1)
(2)
All images in folder:
z
Choose a folder →
[OK]