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<blockquote data-quote="BackdoorArts" data-source="post: 284909" data-attributes="member: 9240">I'm not saying you don't have a potential issue, but come one people, let's not jump to conclusions about faulty shutters from one example.This could be a bunch of stuff, and yes, there's definitely dirt there.&nbsp; The built-in cleaner does minimal work, so until you've got a blower and can see if that stuff disappears I'd say that it's a potential problem at best.&nbsp; Nothing I see looks like oil, which in and of itself is mostly invisible and will trap dirt inside a nice, round ring.&nbsp; I only see flecks of dust and dirt.&nbsp; You might, MIGHT, have something going on with shutter wear.&nbsp; If you bought it local, take it to the shop and have 'em take a look at it.&nbsp; Otherwise, get that blower ASAP and give the sensor a blow.&nbsp; One important thing to consider ... Gravity!!&nbsp; Don't shoot your dust shots straight up at the sky as anything inside the camera will fall straight onto the sensor.&nbsp; Bring it indoors, stick a piece of white paper on the table under a bright lamp, close the aperture all the way, set it to manual focus and turn the focus ring to the minimal focus distance, fill the frame with the paper and shoot.&nbsp; That, is your dust reference photo.&nbsp; Check that, blow the sensor and check it again.</blockquote>

[QUOTE="BackdoorArts, post: 284909, member: 9240"] I'm not saying you don't have a potential issue, but come one people, let's not jump to conclusions about faulty shutters from one example. This could be a bunch of stuff, and yes, there's definitely dirt there. The built-in cleaner does minimal work, so until you've got a blower and can see if that stuff disappears I'd say that it's a [I]potential[/I] problem at best. [U]Nothing I see looks like oil[/U], which in and of itself is mostly invisible and will trap dirt inside a nice, round ring. I only see flecks of dust and dirt. You might, [I]MIGHT[/I], have something going on with shutter wear. If you bought it local, take it to the shop and have 'em take a look at it. Otherwise, get that blower ASAP and give the sensor a blow. One important thing to consider ... [B][I]Gravity[/I][/B][I]!![/I] Don't shoot your dust shots straight up at the sky as anything inside the camera will fall straight onto the sensor. Bring it indoors, stick a piece of white paper on the table under a bright lamp, close the aperture all the way, set it to manual focus and turn the focus ring to the minimal focus distance, fill the frame with the paper and shoot. [I]That[/I], is your dust reference photo. Check that, blow the sensor and check it again. [/QUOTE]

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