-
Optical zoom and pixels don't seem to have anything to do with each other.
And your question is inherently problematic.
Zoom is all about bringing the distant view closer.
And pixels refer to the resolution of **.
For example, 1280 1024 131020
This means that the resolution of this ** is 1.3 million pixels.
Pixels are just small dots of color.
Each ** is made up of these dots.
But it has nothing to do with zoom.
Then there's digital zoom.
That's basically useless.
Because after using digital zoom.
The pixels will be reduced.
There will be a lot of restlessness.
It's very unclear.
Using digital zoom is equivalent to dividing the actual pixel by 2 or 3, and the larger the digital zoom use, the greater the number of divisions.
So the image quality is particularly rubbish.
So don't use digital zoom in general.
Let's also talk about pixels.
Under normal circumstances (ordinary ** size) there is more than enough for 5 million.
So don't go for it too high.
Just adjust the optical zoom, focus on the scene, and set the sensitivity and shutter speed.
It's clear.
-
This also involves the issue of lens resolution.
Therefore, optical zoom is still better than digital zoom, and the ** object magnified by digital zoom is too bad.
So it's better to optically zoom.
Digital zoom doesn't make any sense at all, and cropping in post-production isn't necessarily worse than digital zoom.
-
This question first depends on whether the CCD size and quality of your digital camera are the same.
If it's the same, then it can be said that 5 million pixels is better than 10 million pixels.
And your problem is that with 10 million pixels and digital zoom, the effect is even worse.
So the method you said doesn't work.
-
Tell you about it! Whether it's 5 million or 10 million, it's a waste!
Why the zoom (optical) of the lens is not so accurate, unless it is a 1000 yuan SLR lens.
Digital zoom is even less to consider. Unless you want to make ** small.
-
OK. But your question is a bit weird. Optical zoom and digital zoom are not the same thing!
The magnification of optical zoom will not appear **"distortion"! And digital zoom just simulates optics for zooming! Still
-
Summary. Pro, if the digital camera cannot operate the zoom properly, there may be the following reasons:1
Low battery: Check if the camera's battery is fully charged or if you need to replace it with a new one. 2.
Faulty camera lens: If there is a problem with the camera lens, it may prevent zooming properly. You can try cleaning the surface of the lens and check for damage or foreign objects that are stuck on the lens.
3.Operation error: Make sure that you have pressed the zoom button correctly and that you have not accidentally touched other buttons that could prevent normal operation.
4.Software glitches: If none of the above methods solve the problem, then it may be due to a software glitch.
Pro, if the digital camera cannot operate the zoom properly, there may be the following reasons:1The battery is low and buried:
Please check that the camera's battery is fully charged or that you need to replace it with a new one. 2.Camera lens malfunction:
If there is a problem with the lens of the camera, it may not be possible to zoom properly. You can try cleaning the surface of the lens and check for damage or foreign objects that are stuck on the lens. 3.
Operation error: Make sure that you have pressed the zoom button correctly and that you have not accidentally touched other buttons that could prevent normal operation. 4.
Software failure: If the above methods do not solve the problem, then it may be caused by the software hole early defect. You can try restarting the camera or doing a factory reset to fix the issue.
The camera shows what the contact service center is all about.
Dear, you need to contact the after-sales service, this problem is not easy to solve by ourselves, if it is still within the warranty period, it is recommended that you directly suggest after-sales.
When "Contact Service Center" is displayed on the camera, it is usually because the camera is faulty or the bridge branch needs to be repaired. It is recommended that you contact the manufacturer of the camera or an authorized repair center immediately for assistance and assistance. They can provide professional technical support and solutions, and ensure that your camera is repaired and maintained in a timely manner.
-
Summary. Kiss. When the digital camera cannot operate the zoom properly, there may be the following reasons:
1.The camera is underpowered or loses power instantaneously. 2.
There is a foreign object at the entrance of the camera, which makes normal operation impossible. 3.The camera mechanism is faulty or damaged.
4.The camera firmware or software is faulty or needs to be updated. In the above situation, you can try the following solutions:
1.Make sure the camera battery is sufficient, and operate the camera properly according to the instruction manual to avoid instantaneous power failure. 2.
Check the inlet of the camera lens, and if there are foreign objects such as dust or dirt, clean them with tools such as blowing balloons or cleaning cloths. 3.If the camera mechanism is faulty or damaged, it is recommended to send the camera to a regular repair point for overhaul or replacement parts.
4.If the camera firmware or software fails, try upgrading the firmware or resetting the factory settings. For specific operation methods, please refer to the camera's instruction manual or the relevant help documents on the manufacturer's official website.
If none of the above solutions can solve the problem, it is recommended to contact the camera manufacturer or a professional repair shop for repair.
Kiss. When the digital camera cannot operate the zoom normally, there may be the following reasons:1
The camera is underpowered or loses power instantaneously. 2.There is a foreign object at the entrance of the camera, which makes normal operation impossible.
3.The camera mechanism is faulty or damaged. 4.
The camera firmware or software is faulty or needs to be updated. For the above situation, you can try the following solutions:1
Make sure that the camera battery is sufficient, and operate the camera properly according to the instructions to switch on and off the camera to avoid instantaneous power failure. 2.Check the inlet of the camera lens, and if there are foreign objects such as dust or dirt, clean them with tools such as blowing balloons or cleaning cloths.
3.If the camera mechanism is faulty or damaged, it is recommended to send the camera to a regular repair point for overhaul or replacement parts. 4.
If the camera firmware or software fails, try upgrading the firmware or resetting the factory settings. For the specific operation method of belt and detachability, please refer to the camera's instruction manual or the relevant help documents on the manufacturer's official website. If none of the above solutions can solve the problem, it is recommended to contact the camera manufacturer or a professional repair shop for repair.
-
There are two types of zoom capabilities: optical zoom and digital zoom. Although both can help magnify distant objects during telephoto shooting, only optical zoom can support the addition of more pixels after the image of the subject, so that the subject is not only larger, but also relatively clearer. In general, the higher the zoom factor, the more suitable it is for telephoto shooting.
Optical zoom, like conventional camera design, depends on the focal length of the lens, so the resolution and image quality do not change. Digital zoom can only reduce the original image size, making the image larger on the LCD screen, but it will not help to make the details clearer.
Optical zoom
Optical zoom is called opticalzoom, and digital cameras rely on an optical lens structure to achieve zoom. The optical zoom method of a digital camera is similar to that of a traditional 35mm camera, that is, the lens movement is used to zoom in and out of the scene to be photographed, and the larger the optical zoom factor, the farther the scene can be captured.
Optical zoom is created by a change in the position of the lens, object, and focal point. When the imaging surface moves horizontally, the vision and focal length change, and the farther scenery becomes clearer, giving the impression that the object is progressing.
Digital zoom
Digital zoom, the English name is digitalzoom, digital zoom is through the processor in the digital camera, the area of each pixel in the ** is increased, so as to achieve the purpose of magnification. This technique is similar to using image processing software to increase the area of **, but the procedure is carried out in a digital camera, and some pixels on the original CCD image sensor are used"Interpolation"The processing means to do magnification and put the CCD image sensor on'The pixels are enlarged to the entire frame with an interpolation algorithm.
Unlike optical zoom, digital zoom gives a zoom effect by changing the vertical direction of the sensor upwards. The smaller the area on the sensor, the more visually the user can see only the part of the scene. However, since the focal length does not change, the image quality is relatively poor compared to normal.
With digital zoom, the captured scene is magnified, but its clarity will be reduced to a certain extent, so digital zoom does not have much practical significance. However, Sony's original "Smart Digital Zoom" is said to be an advanced technology that allows images to maintain a certain level of clarity even after digital zoom.
-
1.There is no number change in SLR. Changing numbers is garbage. The main parameter for long-distance shooting is the focal length. For example, with a focal length of 500mm, you can zoom in on the entire frame from a distance of 50-60 meters. The longer the focal length, the higher the magnification, the higher the **.
This means that the lens zoom range from 18mm to 55mm, 55 18 = 3x. If the lens parameter is only 1 value, for example, 100mm, it means that you can't zoom, which means that you can only run forward if you want to zoom in. A lens that cannot be zoomed is called a prime head.
3。In fact, no one on the SLR cares about the zoom factor, the photographer cares about the actual focal range. For example, the 18-55 is suitable for wide-angle to average shooting.
24-70 is suitable for most travel shooting, and the general understanding is that people who can shoot near can also shoot distant scenes. The 70-200 is suitable for medium-to-long distance shooting. Above 300mm, there is generally no zoom.
People care about the actual distance of the shot, not the zoom factor.
In addition, it should be known that the imaging quality of fixed focal length lenses is generally better than that of zoom lenses; The greater the zoom amplitude, the worse the image quality and the more difficult it is to use.
-
1. It mainly depends on the lens, and it has little to do with the fuselage.
2. I don't understand what it means, SLR wood has digital zoom, how much focal length of the lens, is how much zoom, 18-55 is 55 18 = 3 times light change.
3. It is a telephoto lens, mainly the focal length and the maximum aperture. In terms of structure, it depends on the aspherical lenses and UD lenses used.
The zoom of a DSLR lens is the telephoto end divided by the wide-angle end.
-
1.In order to shoot close-ups at a long distance, the focus is mainly on the focal length at a long distance, and the effect is based on the aperture and shutter (such as the degree of bokeh). When shooting close-ups in the telephoto segment, the background is blurred and the subject is highlighted, so it is best to use a lens with a constant aperture.
2.The 18mm-55mm of the full body corresponds to the DX format body, and the focal length angle of 50mm is about the same as the angle of view of the human eye, so the 50mm lens is also called a standard lens, referred to as the header. The smaller the focal length, the greater the viewing angle. Vice versa.
3.What you're looking at should be a telephoto lens. Lens parameters are one thing, I personally think it depends on the material of the lens, look at the lens has a few ED lenses, a few aspherical lenses, simply put, the more these two lenses, the better.
There are probably several telephoto lenses on the market, such as prime lenses.
-
It must be optical zoom, digital zoom means how much you can zoom in on the camera after you shoot **. The typical zoom range of a mid-range SLR is 18-105mmBut it also depends on what brand of camera and lens.
-
1. Light change.
2. The entry SLR is the APS-C format, which is about the conversion factor. For example, 18*, the wide-angle end is 27mm
3, of course, the focal length is long, you don't need to look at the magnification, just look at the focal length of the telephoto end, such as 55-180, 55-270
It's to install a telescope if it doesn't work, it's cheap and can hit birds, but it has some impact on the picture quality.
The difference is: optical zoom adjusts the image distance by adjusting the distance between the convex mirror and the imaging element, the larger the image distance, the larger the object distance of the double, and the farther you can see, the smaller the range; >>>More
I recommend you to check out the Casio H10, I was paying attention to it some time ago. >>>More
Categories: 1. SLR cameras.
SLR digital camera refers to single-lens reflex digital camera, that is, digital digital, single, lens lens, reflex reflex English abbreviation DSLR. Representative models in the market are commonly found in Nikon, Canon, Pentax, Fujifilm, etc. These cameras are generally larger and heavier. >>>More
The core parameters of a digital camera are:
1. The larger the sensor area, the better, mainly reflecting the strong anti-noise ability. >>>More
1.Small cameras basically don't have a manual function (a simple point-and-shoot, but when shooting, press the shutter halfway to let him autofocus and shoot). >>>More