Maaf para sesepuh, jika sebelum nya topik ini udah pernah di bahas (saya udah search, tp kaya nya blum ada) sekedar berbagi tips tentang cara D.I.Y (Do It Yourself) mereparasi shutter button utk canon eos 30D, 40D, 50D yang saya dapet dari sini

http://www.youtube.com/watch?v=CAWGScQeC5g

Disassembly and repair of the shutter button problem that plagues many Canon cameras from the 10D, 20D, 30D, 40D and 50D family. This repair usually costs $300 dollars in labour and shipping. This is a quick overview of how it's done.

Penjelasan nya ada dsini : http://www.flickr.com/photos/shippelt/3099140135/
semoga berkenan. salam