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吹水閒聊
近日收到不少網友意見,指 DCFever.com「吹水閒聊」充斥愈來愈多粗言穢語、人身攻擊、誹謗等不理性討論。作為 一個以攝影興趣為主題的網站,此等漫罵式討論已超出 DCFever.com 設立討論區之原意。DCFever.com 呼籲大家以 攝影交流為目的作理性討論,並正密切留意事態的發展。
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Laza




註冊: 2005-12-21

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題目Black dot in small aperture pic - dirt on my 450D CMOS?     Post time: 9 月 29 日

Just found that shots taken with my 450D has little dirt at the corner. This only happened in the shots taken with small aperture (that's f/10 and above, up to f/40). The smaller the aperture, the darker those 2 little dots are. So at f/8, it's like a faint dark watermark, and it gets darker and darker as the aperture gets smaller.....frustrating!!!!

I've tried with 2 different lens, and it's the same. So it has to be a problem with the camera. My guess is either the CMOS or the mirror.

Do you guys think the Canon customer service technician can fix that up?? I just bought my 450D less than a month ago. But I didn't find this little flaw when I checked the camera in the shop.
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kingkonghk




註冊: 2003-01-27

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題目Re: Black dot in small aperture pic - dirt on my 450D CMOS?     Post time: 9 月 29 日

睇落就係黐左陳
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老叟




註冊: 2003-04-22

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題目Re: Black dot in small aperture pic - dirt on my 450D CMOS?     Post time: 9 月 29 日

return to CS for check, my deepest sympathy!!!!
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maximilianyuen




註冊: 2006-02-11

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題目Re: Black dot in small aperture pic - dirt on my 450D CMOS?     Post time: 9 月 29 日

At the time before I throw away my Canon 20D, Canon service centre charge $300 and take more than a week to clean the CMOS. (warranty expired)

and why don't you post a photo?

and you can try shoot at a white paper to see...
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oly750




註冊: 2008-02-23

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題目Re: Black dot in small aperture pic - dirt on my 450D CMOS?     Post time: 9 月 29 日

我在商場維修店揾個師傅俾50蚊搞掂
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maximilianyuen




註冊: 2006-02-11

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題目Re: Black dot in small aperture pic - dirt on my 450D CMOS?     Post time: 9 月 29 日

well..if the dust is not sticky and you are brave enough...

you can just blow it away yourself
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Douglaschow




註冊: 2006-03-17

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題目Re: Black dot in small aperture pic - dirt on my 450D CMOS?     Post time: 9 月 30 日

羅d水洗下!
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