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This weekly course covers the most common questions videographers encounter when shooting and editing with DSLR cameras, from choosing a frame size and frame rate to understanding moiré. Authors Rich Harrington and Robbie Carman will also help you understand the impacts of compression and the difference between cropped (or micro 4/3rds) and full-sized sensors in cameras, and much more. This continual FAQ guide is a handy way to find the answers to the questions that plague you the most.
Robbie: All right, so Rich in the last movie we talked about what I'll refer to as dry cleaning your sensor, right. Rich: Yeah. Robbie: Using some air to sort of puff out any dirt that might be in there, using a specialty motorized brush. Rich: Yep. Robbie: Now we're going to talk about a technique, that again I just want to be clear, if you're not comfortable with it. Please seek the help of a professional and it also, done incorrectly, if you're not trained on the technique of how to do it. Could be do some damage. Now to be clear, we're going to be talking about using a wet brush. And what I'm not talking about, now this should be obvious but what I'm not talking about is opening up your camera.
Rich: You're making me really nervous here Robbie: A little water in the camera. Rich: I don't know Robbie: Maybe a little like dish soap, close the cap, switch it around. That works right? Rich: No, not at all, not at all. Robbie: Oh sh, oh Rich: Get, get that water out of here okay? All right, so this is a specialty technique. You do need to actually use specialty equipment for this, and I still get nervous doing this to be perfectly honest. I, I tend to only do this when I'm in the field, I can't get rid of it, and taking my camera into a shop is not an option. So there is a series.
This particular one here I've got a sensor cleaner. I've got a dedicated brush. The same company VisibleDust makes these wet cleaning kits. Robbie: Yep, now Rich I want to say one thing before you open all this up and dive in. That is sort of a hybrid approach to this A lot of cameras do actually have dust deletion, sort of capabilities on the camera, right. Rich: Yeah. Robbie: So if there is a persistent spot, you're nervous with this technique, you can actually sort of map out that pixel, those couple pixels from the image. So they're not going to, you know, you're not going to that dust in the, in the final image.
Rich: Very true. Now, I take the brush out. I'm very careful not to touch the brush itself. I'm just going to set that down on the plastic. And, I've got this here Took the cap back off. Robbie: Yeah. Rich: And I'm going to go back into the menu, and I'm going to choose the lock mirror quickly for cleaning start. And it's open. Robbie: Yep. Rich: Now, I'll take the brush. Robbie: Mm-hm. Rich: And it says on it, use two or three drops. I read that as use two. Robbie: One drop. Maybe one. Rich: Two. I use two. And I'll just put one on basically each side. Robbie: 'Kay.
Rich: Of the brush. There we go. Robbie: 'Kay. Rich: And then, you just line it up with the censor. This is generally the width of the censor. Robbie: And having a nice good focus light in this situation also helps. Rich: Yeah, I could bring this guy back actually. Robbie: Yep. Rich: That's pretty bright light. And I'm just looking in there as I do this. There we go. And take that gently, across the sensor, and you don't want to push too hard. Robbie: Nope. Rich: You don't want to do that a bunch of times by any means, and just take that back and forth a couple of times, and then take a look.
And well, it worked as advertised. Have a look. Robbie: It's pretty darn clean. Rich: Yeah, and now, if you've got this, you kind of gotta decide, right? These aren't cheap, so if I've got multiple cameras I'm going to clean anyways, I might go ahead and clean them. But you don't want to overuse these, don't stick it back in the bag and say oh, I'm going to pull that out and use it again. Robbie: Well especially since you got it wet now. Rich: Yeah. Robbie: It's more prone to sort of, collect dust and dirt so. You're absolutely right. I found that buying a couple of these at a time so you can use them. Rich: Yeah. Robbie: You know maybe two, three times throughout the year kind of thing.
Is is not a bad bet. Rich: Yeah, so that is the wet cleaning if you do it yourself, again and I totally agree with you here. In fact, I send my camera in for cleaning more than I clean it myself. Send it to your local camera shop. If you call ahead, typically this is same-day service. Some places have to send it out. You go to the camera shop at the local mall, they people there may not know how to it. They're sending it off to some place else. Robbie: I, I'm a, I'm a big fan of specialty camera stores. They tend to give you a little bit more love. Rich: Yeah, but this is something that doesn't take that long. You can get it cleaned, last time I had it done it was about $40 to 50 bucks.
It depends on where you take it. And this is good to do periodically. Particularly, if you know you've got a big shoot coming up. Take that extra time to get it clean. All right, well lots of stuff here. Lots of things that are practical from what you could be doing, just to keep the lens clean in the field. Your hands clean. Down to periodic cleaning of the sensor itself. From lynda.com my name's Rich Harrington. Robbie: And I'm Robbie Carman. Rich: Thanks for joining us.
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