Community answers indicate that cameras generally do not require a PIN or password before deleting photos.

A few practical alternatives were suggested:

• Use the lock switch on an SD card. Many cameras will refuse to write to or delete from a locked card. The downside is that the camera also usually cannot take new photos while the card is locked.
• Use automatic backup while shooting, such as a Wi‑Fi memory card that sends images to a computer or access point. Then even if files are deleted from the card, copies exist elsewhere.
• If maximum protection is needed, write-once media was mentioned, though it is a niche and expensive option.

So the direct answer is no, not typically via a camera-side PIN. In practice, card locking or immediate backup are the more realistic ways to protect images from unwanted deletion.