I have two problems that I believe are seperate but similar and I'm trying to get a handle on them here. I've had a D3000 since July 2011 which is now showing signs of dust on the sensor (black spots coming up in the same place on images given the right backgrounds). That I understand is dust on the sensor and I have three such spots on my images when I use my 18-55 kit lens, but they vanish when I use my 55-300mm lens, I guess focal length does sometihng to make them vanish, but whenever I change back to 18-55 the spots return. So the question is, any recommendations on a good video to watch on how to get this foul dust off of my sensor so I don't have to send the camera away for a few weeks and hope it doesn't come back with something else wrong with it? (I can't be without it that long!) Possibly I can find a camera shop within driving distance that can take care of this for me if I decide the procedure is too much for me, but I want to just look at it first.
Also there appears to be a few specks of something behind my viewfinder. I know it's behind the viewfinder and not dust on the sensor because it does not show up on any images (thank goodness) and is visible with either lens. I've wiped down the viewfinder many times, I mean this camera goes out to the beach and bay a lot, but I take better care of my camera than some people take of their kids, it gets wiped down every time it goes out, because I live on a barrier island there's always salty air out there. I can't get this stuff out of the viewfinder, it looks like specks of lint or something. Any ideas on what I can do to remove it? Also, I'd like to use the viewfinder cover (that little thing that goes on the viewfinder) when I put the camera into the camera bag to prevent more of this junk from getting in the viewfinder, but I can't even figure out how to put the viewfinder cap on it.
You really need to learn how to clean it yourself, since it can pick up dust within about an hour in the wrong situation... and in a day or so in the right situation... Dust is pretty much EVERYWHERE, unless you live in an environment that requires bunny suits (like folks who fab chips, etc). From what I remember, there are about a million dust particles per cubic foot of air. Maybe it was per cubic meter, but either way it's a lot.
The first time is always a little nerve wracking, but I really don't know of anyone that has goofed it up any worse than needing to do it again (by using too much fluid). If it were that hard, we'd surely hear about it occasionally.
As far as the viewfinder goes, that lint is probably on the focusing screen, below the pentamirror. That is, it's more accessible from the lens mount, and likely the best approach is to leave the focusing screen alone and just try to get it out with a rocket blower.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
Thanks, it's something that yeah, I definitely have to learn because I really had the camera for only a little over a month in the summer when the first dust started showing up. Now it is three annoying dots, that I can elminate in Photoshop, but I'd just as soon have them gone because they're always there.
Get the Giottos rocket blower as Brian suggested and use it frequently. Also make sure the Clean Image Sensor feature is turned on. This will dislodge dust on the sensor but still use the blower to get it out of the camera. Also never touch the sensor, mirror or focusing screen with a brush or anything else. These components are delicate and can be easily scratched.
Jersey shore? neat. Show us some photos. I don't drive down as much as I used to. Had a place in Avalon. Miss it.
Yeah that's the only thing I'm worried about when I work on very exacting things like this, whether I'm going to be able to keep my hand steady enough not to hit anything when I use the blower, it's something I'll just have to check out and see how comfortable I feel doing it on my own.
Pictures? I got tons of this place, I think I've mapped practically the entire perimeter of Absecon Island in any area safe enough to stand around with a DSLR and tripod, LOL. I'll put somre more up soon. Avalon's beautiful like Margate is, you can't beat the photographic opportunities here of the ocean and the bay.
>Yeah that's the only thing I'm worried about when I work on >very exacting things like this, whether I'm going to be able >to keep my hand steady enough not to hit anything when I use >the blower, it's something I'll just have to check out and see >how comfortable I feel doing it on my own. >
You don't have to put the blower inside the body at all. There is plenty of forced air to just aim it at the sensor with the mirror in the lock up, cleaning, position. Then just squeeze the bulb. Nothing to worry about.
Ok, that makes me feel more comfortable about trying it, I just got to order one of those rocket blower things, wait for it to show up and then I'll try this. Fortunately the D3000 does have mirror lock up for the purposes of cleaning it only so that should make things easier. I can also set it up on a tripod to free up a hand. Ok, this sounds like something I should be able to handle, not too complicated, and then I won't have to worry anymore when it gets dusty again.