Public phobia about dust on sensor, how do u overcome?
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 Mar 25 2008, 08:53 PM
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#1
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Senior Member
2,477 posts Joined: Feb 2005  
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try do ur test shot at f20 and above.
more or less, whether ur lens or ur sensor, most of the time some tiny dust will be there. i blow my sensor and mirror, but one time i blow it with a wrong angle, the dust fly inside the penta-mirror and stay there. Nikon says need RM200+ to remove it, even still under warranty.. This post has been edited by mindkiller6610: Mar 25 2008, 08:53 PM |
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Mar 25 2008, 08:57 PM
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#2
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QUOTE(dgrebel @ Mar 25 2008, 08:35 PM) wahh a good guide there.. facing down eh? coz sometimes i always scared of scratching the lens, so i have to look properly for the correct inlet. just heal it before u process it to HDR.i agree that blowing is enuff, but if i use electrostatic rod to pull out the dust, will it affect the sensors? i'm thinking of getting one. and why do i always notice 40d dont have sensor problem? is it that good? LOL. i have quite a number of friends using 40d and they all tell the same thing. quite jealous la..  @kelvinyam: yes we can heal it, but if u do HDR, aiyaa.. so intriguing la the dust.  |
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Mar 25 2008, 09:02 PM
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#3
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QUOTE(mengsuan @ Mar 25 2008, 08:54 PM) Which angle is a wrong angle? blow directly to the pentamirror, which means the area above the reflection mirror, this will push the dust to fly inside to the pentamirror thru the small gap near the reflection mirror hinge. This post has been edited by mindkiller6610: Mar 25 2008, 09:03 PM |
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Mar 25 2008, 10:07 PM
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#4
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QUOTE(mengsuan @ Mar 25 2008, 09:12 PM) If this happens, only your viewfinder will have dust spots right? yup, few dust spots, some of them OOF, means looked blur,there is one of them in focus, look as clear as the AF point inside the viewfinder. I wish to know, the AF sensor is inside the pentamirror structure, or on the part below of the reflection mirror ? This post has been edited by mindkiller6610: Mar 25 2008, 10:09 PM |
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Mar 26 2008, 06:19 AM
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#5
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QUOTE(mengsuan @ Mar 25 2008, 10:43 PM) Does it look anything like the red blotch of light at the topmost AF point in this post? http://forum.lowyat.net/index.php?showtopi...post&p=16356471 erm, no, not like tat, my AF point's red light is not as strong as urs..My 40D have abnormal viewfinder since yesterday. mine it just few dust spot, and only noticeable when under bright areas. u have to contact Canon and get it fixed for this one seriously, it doesn't look normal to me..  This post has been edited by mindkiller6610: Mar 26 2008, 06:20 AM |
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Mar 26 2008, 09:19 AM
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#6
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QUOTE(kelvinyam @ Mar 26 2008, 07:43 AM) Dust should not be in focus. Are you sure it's not dead/hot pixel? I feel weird about that too, the dust appears on the viewfinder only, did not appear in the pictures i took.there are few dusts in the viewfinder, or should i say inside the pentamirror. Some of them are OOF when i look thru the viewfinder, but there is a tiny dot of it, looks very clear and sharp, i only could think it as dust..  however, since it doesn't affect my pictures quality, i didn't give much care about it. |
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