OP
mikan
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Senior Member
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Posts: 1,401
Re: Dust and AF in Low Light
Sergey Borachev wrote:
Sergey,
I do not see any dust inside the lens. I don't have a case for my G9X, but I carry it inside my purse, and I usually keep my purse very clean. Men often carry a small camera inside a shirt pocket or pant pocket which might have lint in it, and in that case, dust might be a more serious problem, and a small camera case or a lens cover might be a good way to minimize it. But of course a case would add a bulk to it and lens cover would require you to remove it before taking pictures.
I was also concered about dust inside (any) fixed lens cameras and did some Googling and DPR search on this topic, and there seems to be no magic way to fix it once it happens and shows up on your pictures (not all dust shows up on pictures), other than sending it to Canon (costly). So I think prevention is the best approach we can take.
As for AF in low-light, there was a thread in which OP was asking the same question, so I took this quick video and posted it:
https://www.dropbox.com/s/uze8pwmnivurs7y/IMG_4199.MOV?dl=0
This was taken in a very dark room, with two small windows facing North, 30 minutes till sunset, and my computer monitor the only source of light; much darker than the LCD indicates. I believe the blue rectangle means "focus set in servo (continuous focus) mode", but please somebody correct me if I'm wrong.
Thank you so much, Mikan. Very useful info and the video is showering exactly what it performs like. The touch-focus is a very nice feature and can help when the camera's AF is struggling.
Indeed, the touch focus is really convinient. Not only for still photos, but for movies, I feel it's a must have. If you want to change the focus point while shooting a movie, if the touch focus feature is available, all you have to do is touch your object. Without the touch focus, you'd have to use the physical buttons to refocus, and with my Sony A6000, the movie records the sound of the buttons being pressed (very loud). That's one of the reasons I decided to go with Canon, not Sony, for a take-with-me-everywhere camera.