I couldn't care less about something being "annoying" or not.
All I care about are the results - the photos that I take away from a shoot. . And Canon's noisy DSLR shutters often keep me from being able to get as many quality images as I could get if they were noiseless.
Many skittish birds and mammals get freaked by the shutter noise. Sure, there are animals that don't seem to mind it at all. But there are plenty of others that definitely do mind it, and flee at the sound.
It sucks to have to put the camera in "Silent Mode" (I think it's mirror lockup or something?) because that keeps me from being able to shoot bursts at the full frame rate, and I sorely need all of those frames when there's action to be captured.
I honestly don't think that Canon has been trying very hard to make their DSLR's shutters and mirrors as quiet as possible. . It seems like they don't think it will affect sales, and that some people actually like the sound that the shutter makes. . Sheesh! . It shouldn't ever be about what we like (in terms of user experience), it should only ever be about the results that we get and what our photos are like.
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"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".