Checking the service docs is smart, @thomas.viola. My old 5D Mark II manual says 150k for the shutter, which already beats that common 100k guess. It really shows how much it varies by model, even back then.

Wait, you clean yours? Mine look permanently smudged... I just gave up. It’s wild to me that designers act like it’s a fresh, clean look forever. In real life, it’s just a mess you see all the time. I don’t get the hype when it’s so much work for something that never actually looks clean.

Yo, that white paper bounce trick you mentioned is legit. I used a similar hack in an empty movie theater a while back. Just had my phone camera, so I held up a receipt from my wallet to bounce the dim exit signs. It made the whole room look way less creepy and more even. Super simple but it totally saves shots when the light is trash. Your mall corridor pics must have that perfect soft glow now. Always cool when a basic fix works better than fancy gear.