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<blockquote data-quote="Dave_W" data-source="post: 148593" data-attributes="member: 9521">Unfortunately, I know exactly what this is. I just did it the other day, myself. If you make the mistake of getting your swab too wet, it will leave behind a smear like this and even though you blow on it to dry it out, it doesn't go away. On Friday I was down to two swabs, did my cleaning and got nearly all the bugs out, less one or two. I was going to just leave it be but then the dumb part of my brain said &quot;go ahead and get them all&quot;. But when I put the cleaner solution on the swab, a lot got on it. So I swished it in the air like an old fashioned thermometer and figured that would be fine. No, it wasn't fine. I ended up getting a smear just like this one. In my panic and lack of a new swab, I tried re-wiping it with the swab that was now much drier. Bad idea. While the smear was now gone, my sensor showed hundreds of little spots. It was 4:30 and the camera store closes at 5, jumped in the truck and bought a bunch more wipes. Did it again with the new wipe and this time using Eclipse instead of V-Dust solution, the sensor looks fine. Btw, Did you use V-Dust solution? I'm now only going to use Eclipse since I believe the V-Dust is more than just methanol. If it had been just methanol I suspect the smear would have disappeared when it dried.</blockquote>

[QUOTE="Dave_W, post: 148593, member: 9521"] Unfortunately, I know exactly what this is. I just did it the other day, myself. If you make the mistake of getting your swab too wet, it will leave behind a smear like this and even though you blow on it to dry it out, it doesn't go away. On Friday I was down to two swabs, did my cleaning and got nearly all the bugs out, less one or two. I was going to just leave it be but then the dumb part of my brain said "go ahead and get them all". But when I put the cleaner solution on the swab, a lot got on it. So I swished it in the air like an old fashioned thermometer and figured that would be fine. No, it wasn't fine. I ended up getting a smear just like this one. In my panic and lack of a new swab, I tried re-wiping it with the swab that was now much drier. Bad idea. While the smear was now gone, my sensor showed hundreds of little spots. It was 4:30 and the camera store closes at 5, jumped in the truck and bought a bunch more wipes. Did it again with the new wipe and this time using Eclipse instead of V-Dust solution, the sensor looks fine. Btw, Did you use V-Dust solution? I'm now only going to use Eclipse since I believe the V-Dust is more than just methanol. If it had been just methanol I suspect the smear would have disappeared when it dried. [/QUOTE]

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