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41

There are three main methods by which a dSLR/mirrorless camera can be used as a webcam. HDMI capture HDMI capture requires two things: that the camera can output "clean HDMI"; that is HDMI that doesn't have camera control overlays all over it, and an HDMI capture device to turn the HDMI output from the camera into a USB webcam input to the computer....


34

This is usually caused by the camera taking the scene as a whole and treating it as 18% gray. This is the way light meters (and camera meters) are calibrated to see the world. Scene mostly snow? 18% gray. Black cat in a coal mine? 18% gray. The camera doesn't know what you're taking a picture of, so it assumes that the scene is, on average, 18% gray and ...


28

There is no clear answer: That depends on your type of photography. If you want the camera just to take the usual this and that photos, you are probably not missing out very much. The computational support in the phone has come quite a way. However, you will notice some limitations: Due to the small sensor, the performance in low light is limited. The phone'...


19

Your camera's light meter measures brightness, but it can't tell if the brightness level it is measuring is a black cat in a coal mine or a white cat in a snowstorm.¹ It assumes everything you point your camera at is somewhere about halfway in between those extremes. ¹ Sure, the scene with the white cat will probably be brighter than the scene with the ...


18

Definitely don't try to support the camera by its hotshoe. It's not designed for it. I don't think you should put anything at all on a hotshoe. Everything is so heavy and all the weight is pushing and pulling in all directions on that little joint. Even if your hotshoe is designed to do that, that's an insanely bad holder. Your camera is hanging off the ...


16

It's important to understand that the image through the lens is inverted in both the lateral (x ↔︎ -x) and vertical (y ↔︎ -y) dimensions. Mathematically, this is the same as a 180° rotation about the z-axis (optical axis). Thus, the upright image entering the lens, after being refracted and focused, leaves the lens flipped both vertically and horizontally. ...


16

You've got the right approach, but given that the electronics were powered up when the camera took it's swim in the sea, I think it's quite unlikely you'll restore function. Probably the best you can hope for, if the camera was wet inside, is to recover the images from the memory card.


12

(I'm promoting my comments to an answer now that I have a little more time.) In addition to all the points brought up in other answers, there are several non-technical, "user experience", reasons that a DSLR is superior to a smart phone. The first relates to the "immediacy" of the controls. After a few (dozen) hours using a camera the ...


10

inkista has an excellent answer above. My Panasonic GX-80 doesn't support 'Lumix tether for streaming' - but it does have a Wifi function allowing you to watch a live preview from a smartphone. Over the course of a caffeine-fueled long weekend, and helped by the writings of people who'd tried similar things before me, I was able to get the wifi preview ...


9

On top of what has been said, part of a photographer's skills is to make arbitrages between light received, exposure time, and depth of field. With a smartphone, you may experiment with framing, which is very important, but you won't really be able to experiment with light, exposure and depth of field. In a sense, it is like learning to play guitar with only ...


9

It's toast. Salt water is the most corrosive thing you can do to the electronics inside a DSLR that doesn't involve a vat of strong acid. Roger Cicala, the founder of lensrentals.com, has posted at least two blog entries regarding teardowns he did of rental cameras returned after having been exposed to salt water without having actually been submerged in it. ...


8

As mentioned in comments, lenses don't have a maximum shutter time. They just let light through continuously, blocked by the camera's shutter from hitting the sensor. You are also not limited by the camera's internal shutter speeds [at the long end]. Even though the camera's maximum internally-timed shutter is 30 seconds, it also has two 'long' modes, Bulb &...


7

This isn't possible with DSLRs using optical viewfinders. This image (source) shows the cross-section of a DSLR: Normally light enters the lens, reflects off the mirror (#2) into the pentaprism (#8) and then to the optical viewfinder (#9). When the mirror is in this position, light does not reach the sensor. When recording a video, the sensor makes 60 ...


6

This sounds like the same problem people encounter when trying to photograph snow on automatic exposure. The camera will adjust the overall light value in your image to approximate middle grey. When the image is dominantly white, as in your case, the camera darkens the image, and I expect your smartphone is doing the same thing. In a DSLR, you can ...


5

The others have explained why the metering is causing issues, but I would like to add that active D-lighting actually underexposes the image in order to preserve highlights (~1 stop at max), and then processes the data/jpeg to restore midtones/shadows... IMO, it is not really helping you. Personally, with the D5100 I would be shooting in manual mode for ...


5

Don't. Seriously. There's no reasonably safe way to place high-end camera gear in checked baggage without using a hardened, lockable container such as a Pelican or similar case. If the handling doesn't damage your gear, the handlers will almost certainly make off with it. You could ship them ahead of time via another, more secure method with a small shipment ...


5

Yes. But before I get into it, let's cover some safety stuff. As an astronomer and NASA/JPL Solar System Ambassador ... I never talk about looking at the Sun without talking about safety (cause you can really mess yourself up). It is NOT OK to stare at the Sun. This results in an effect similar to getting a bad sunburn ... but on your retina. And like a ...


4

Operating a mechanical shutter close to the limit of its speed can cause loss of sharpness due to diffraction since then a significant amount of the exposure time is spent near at least one of the shutter curtains (or the shutter leaves, depending on type of mechanical shutter). Electronic shutter does not suffer from this particular problem.


4

Using native lenses is bound to give you a better experience than with a mount-adapter. Assuming, an adapter that is purely mechanical - as most are - there will be no reduction in image-quality because all these adapters do is create space between the mirrorless mount and the flange distance for the DSLR mount. Although image-quality is bound to be the same,...


4

A lot of things have been touched on but upon re-reading your question and seeing you'd get multiple lenses 18-55 mm, 70-300 mm, and 50 mm prime. There is no way a camera phone is going to function with as much versatility as the package you're proposing. Digital zoom is not a feature. It's just cropping a photo. You won't touch a 300mm lens with a camera ...


3

There are two things probably going on here... The first is a metering issue...Cameras are smart, but they're not people. The meters assume a scene that is middle of the road, not super contrasty. So, if you hold a perfectly white board up in front of your camera and take a photo, then you'll get a photo of a grey card. Likewise, if you hold a perfectly ...


3

The PP3 files are not actual image files but "processing profiles". When I was using RawTherapee one year ago when I got started in photography, I figured out that the .pp3 files are rather files that contain the information of your edits in RawTherapee for each imported photo. Technically, they are called sidecar files, and they are like the .xmp files ...


3

Either a stuck mirror or a stuck shutter. Remove the lens and use the camera menus to navigate to the setup for manual sensor cleanup, which should lift up the mirror fully and open the shutter fully. You'll quickly sees which one is stuck (unless that maneuver fixes something...). In any case the camera likely requires service.


3

If you have a Canon or Nikon camera, and a Windows PC, Sparkocam might be a solution. It enables you to connect the camera via USB, and use the camera for for example Skype. I have used my Canon EOS 700D with SparcoCam, and it works well. It is free to try, but costs $49.95 for a standard license for either Canon or Nikon (upgrades for 1 year). From Sparsoft....


3

For Mac users - a new webcam app. I'm adding this to existing 'webcam' questions for future searchers. I am in no way affiliated with this product or the company making it - this is a simple user to user recommendation. I just discovered this today, announced on DPReview a new product called Cascable Pro Webcam £40 [£30 for the first week to 24 July 2020] I'...


3

No, at least not on the camera. The lens mount of the camera is designed to support the weight of the camera (and some accessories). When used with big heavy lenses (anything bigger than 200mm) the lens supports the camera and not the other way around (a tripod is attached to the lens). Damage to the lens is quite unlikely, too.


3

Yes. The smartphones are small, easy to use, allways connected to networks, stuffed with all the filters... They, actually, replaced them years ago. But through point-and-shoot cameras. No. The smartphone geometry will never allow to build such optics that can barely close to the DSLR/Mirrorless. Each pixel needs some area to gather photons, the more area it ...


3

A lens such as the Canon 18-200mm only makes sense if the convenience of only one lens is more important to you than pretty much all optical performance factors as well as the performance/price ratio. Overall you'll get lower optical quality and pay a premium for the privilege. In order to get such a wide range of focal lengths in a single lens you give up ...


2

My solution to this problem was to format the 64gb card in the camera which produced a non-working card giving the Full error. I then put the card in my laptop and using Aomei partition manger reduced the partition size to below 32gb. The card then worked perfectly in the camera. Though obviously half capacity. If you reformat the card in the camera it will ...


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