If you have access to your 500px account, and would like to change the password, go to your Settings page to create a new password.
If you do not have access to your 500px account, and need to reset your password, it's easy:
1. Go to 500px.com/recover
2. Enter the email address that is on your 500px account (this is very important!)
3. Wait until you receive our email (don't request a recovery multiple times in a row), click the link in it and create a new password.
If you do not receive your password email notification, be sure to check the spam/junk folders of your email account as your password recovery email can sometimes be sent there by your email provider.