The shutter replacement is typically $200-300. However high shutter mileage means the supporting hardware is worn and thus the mirror box needs to be replaced as well, hence the $640 estimate. With 100,000+ shutter cycles on a prosumer camera I bet Canon automatically replaces the works, not merely the shutter. You could email Canon and ask what the cost is for shutter replacement. 1 million exposures is a lot, even if the camera is rated for 400k. But who knows, shutter can last a million more actuations or it might give out right away. Also, ebiggs, your comment is very assumptive and borderline rude. I came here asking for input and if anyone had encountered similar issues. I figured on a Canon forum, 07-06-2016 02:54 AM. Hi, On Canon 1DX Mk II we have the following modes: 1. Single Image. 2. Single Image Silent Mode. Between the two above one can distinguish a certain difference because it is clear that in the 2nd case the mirror is released when the photog released the shutter button. I don't know how quieter is but, anyway, the separation The age of your camera is not really a factor, aside from the warranty considerations. Used hard to take a whole lot of shotsand/ or to shoot a lot of long videos, it's possible a shutter might wear out and need replacement in fairly short time period. Typical shutter "life expectancy" for a 70D would be around 100,000 shutter cycles. I will guess $300 to $350 for a shutter. And, yes, all Canon service is warranted. A 70D isn't that old of a model and well worth a shutter. Shutters are not that big a deal to replace if Canon does it. The 100,000 life span is meaningless. It is an average. Some shutters will fail after a 100 clicks. Some will go the 100,000. And, some will go I've been doing further testing of my camera body and shutter. I noticed that I don't see the whilte bar across the top of the photo as slower shutter speeds, say 1/4 or slower. Possibly 1/8 or slower. And I don't see the wide white bar on the second, third, fourth, fifth photos, and on, after the f Digic DV 4. Interchangeable Lens System. EF-mount for compatibility with EF, EF-S and EOS EF Cinema lens systems. ND Filter. Mechanical ND filter system with option of clear, 2, 4, and 6 stops. Iris Dial. Manual setting in 1/2-step increments, 1/3-step increments or fine. Push Auto Iris Control. BdUx3.