Questions tagged [resolution]

quantifies how much detail an image can convey

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3answers
163 views

Does lower resolution result in better signal-to-noise ratio, given the same sensor size?

With the release of the Canon EOS R5/R6, there have been many saying that they prefer the 20MP R6 camera over the 45MP R5 camera, due to its lower price but also because of "better low-light ...
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2answers
75 views

Estimating the optical resolution of a lens

In Tony & Chelsea Northrup's recent video titled 5 Lies Camera Companies Tell You, they mention that the optical resolution of a kit lens is often lower than the resolution of the sensor at around ...
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2answers
152 views

What digital camera resolution do I need to make a “zoomed-in” image on a website?

Sorry for my English...I don't have much experience with digital cameras. Right now. I'm building a Website and I'm creating a zoomed-in image like this, where mousing over a smaller image displays a ...
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1answer
41 views

Printing picture on a canvas [duplicate]

I am trying to print a picture on a canvas, I would like the canvas to be 16x24 in size. I was told that my picture is 75 DPI, is the resolution good enough for the canvas to be nice and clear?
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2answers
133 views

How to calculate the precision/resolution of a camera

I know there are other questions about this but I couldn't find the answer I was looking for... I am developing a control system using a camera and I need to know theoretically the precision/...
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2answers
121 views

What PPI I need to set for photos to avoid pixelated, jagged edges on paper?

I want to shoot a few photos using the smartphone. I will receive JPEG files with a pixel density of 72 ppi. I will then move these photos to my computer and convert them from JPEG to TIFF (using GIMP,...
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3answers
233 views

Why are 48mp images taken with a 4k camcorder very bad?

I bought a 4k ultra HD digital camcorder and took a picture with it. I don't know much about cameras or photography but I expected the picture to be sharp as high-resolution pictures are. But when I ...
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3answers
159 views

Can I upgrade the resolution of a camera without getting a new camera body?

Can you upgrade your camera body with higher resolution? E.g with a new sensor? I would even be willing to pay for a whole camera to upgrade the one I have. The reason I want to upgrade the sensor ...
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2answers
83 views

What is the meaning of pixel size for sensors

I was reading into the specs of my camera, and in the manual it says that the sensor I am using (SONY EMX287) uses 6.9 μm pixel size, making it a sensor with high spatial resolution. So I was ...
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2answers
82 views

Tools or methods to extract frame from video which is of higher resolution by combining multiple frames

With a stationary video zoomed in, if watching as a human, more details can be "seen" over multiple frames because we're able to tune out noise and/or combine slightly shifted detail into one coherent ...
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3answers
229 views

Bayer color effective true resolution [duplicate]

Because in a typical digital camera, each pixel records only one color though use of a Bayer filter or similar mechanism to achieve color vision, the true resolution of a ## megapixel sensor is ...
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1answer
70 views

Photobook printing – does the text get printed differently?

I've printed a few photobooks through various services (AdoramaPix, Blurb, etc.) and am always looking for better quality options. I hear good things about BayPhotos and Milk, in particular their 6-...
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2answers
64 views

Need advice for camera and accessories for my experienmts [closed]

For my experiments I need to take pictures of objects that are around 5cm x 5cm with good resolution, I have a Pixel 3a and the current resolution is just ok. I need to lay these objects on a flat ...
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3answers
138 views

What is a good resolution for text notes (during a lecture or training) [closed]

I'm a techie and when attending various training presentations, I'll take a photo of a slide that is being presented. Now I want to save this training slide for posterity. What resolution is ...
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2answers
217 views

Calculate original resolution an image was taken at from EXIF data?

I have a resized JPG of a photo that still contains the original EXIF data. How can I calculate the original resolution (in pixels) the camera was set to when this photo was taken? In the EXIF, I see ...
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1answer
541 views

Calculating the sensor size or pixel pitch of the Logitech BRIO 4K Webcam? [duplicate]

I have a Logitech BRIO webcam and want to try and calculate some of its physical dimensions like the sensor size or the physical size of each pixel. Unable to find any info on the official site, I ...
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1answer
171 views

How can I force my 48Mpix Android camera phone to save images at full resolution?

I have a Mi A3 phone camera. This has a 48Mpix sensor, but I am disappointed in the detail captured compared to, for example, a Sony phone with a 12Mpix sensor. Now what I notice from image ...
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2answers
161 views

Is 24MP actually matched to Full-HD Resolution when factoring in the differences on how pixels are defined?

Naive assumption: 24MP sensor vs a Full HD monitor of 2MP, sensor has much more resolution. Second look: You sample something that is not synchronous to your sampling raster/clock, you need to ...
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1answer
100 views

Calculate the maximum DPI a camera can shoot [duplicate]

I am trying to determine at what DPI a certain camera can shoot, namely this model, however the technical specs at the official site do not give any details about it. Is there a way to calculate ...
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2answers
54 views

How do i find the distance required to resolve a point on a page from a mobile camera?

Given all details such as focal length , aperture etc , how can i find the size of a point on a paper that is at a given distance from a mobile camera ? Or vica versa , the distance required to ...
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2answers
684 views

Lumix G7: Raw photos only in 1920x1440, no higher res available

On a G7 I bought used the images come with a 4592x3448 resolution for JPEG and 1920x1440 for raw. When I switch the mode to RAW only, the resolution/image size option in the menu is greyed out. Is ...
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2answers
250 views

Effect of increasing sensor size or focal length on resolution of target object

Suppose I have a camera of sensor size 8mmx8mm, optical class (2/3)" with a compatible lens of also (2/3)". The focal length of my lens is fixed (say 8mm), and the distance to my target object is also ...
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4answers
718 views

Does higher resolution in an image imply more bits per pixel?

I have been trying to understand how a better spectrum of color can be represented in an image and to avoid banding it sounds like the image would need to have more bits per pixel. When the resolution ...
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3answers
1k views

How to determine the actual or “true” resolution of a digital photograph? [duplicate]

What I mean by "true" resolution is the resolution at which the maximum available amount of real detail is present. For an ideal picture this resolution is the same as the resolution encoded in the ...
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2answers
238 views

how to take a custom resolution using a canon camera

Currently I'm having my staff take mass pictures of items from convenient store in order to populate the images of items in our e-commerce site. I have a Canon EOS 200D camera. My target ...
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1answer
92 views

High resolution photography with C API and optical zoom [closed]

I am currently looking for solutions to take high resolution photos of objects via a dedicated software. (The software will be developed by myself.) Therefore I am looking for ideas for cameras, where:...
2
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1answer
43 views

View at given print size

What is a good way of viewing an image at the same physical scale as a given print size? E.g. say I want to print an image at 40x60cm. How do I (most easily) display the image so that 1cm on my ...
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4answers
446 views

Pixels and photodiodes

A photodiode is the smallest element of a digital sensor, while a pixel is the smallest piece of information in a digital image. I wonder if the two terms can be used interchangeably or there are some ...
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1answer
70 views

Can only take 12MP photos on my 16MP Sony DSC H100

I bought this camera at a quarter of its price and just noticed I seemingly can't take pictures at its full resolution (16MP). The only available options are 2 and 12MP. Any clues?
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1answer
141 views

Why do dedicated video cameras have such low resolution sensors? [closed]

For instance, the Canon XF405 camcorder has an 8.2 megapixel sensor, yet it costs over $3000 USD. Whereas even a iPhone 6s has a 12 megapixel sensor. Why do dedicated video camera have sensors with ...
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3answers
158 views

Full resolution at less-desired aspect ratio or less resolution at desired aspect ratio?

I come from the world of film cameras, where larger negatives are generally preferred over smaller negatives because they generally can hold more information and detail. Now, with digital cameras, ...
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2answers
132 views

How can I find the width and height of pixels on a camera display?

I am trying to determine the width and height of the LCD on the camera. I will use the Canon EOS-1DX Mark II as an example. The display is written as 1,620,000 pixels. This is not intuitive to me as ...
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2answers
158 views

Best Camera To Purchase for my Vacation [closed]

I'm going on a few vacations soon and am thinking about purchasing a new camera. Currently I just use my iPhone 6s. I've been searching the internet endlessly it seems and have came across these few ...
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2answers
207 views

What image/camera/lens quality metrics are relevant for resolving human subjects?

I am attempting to gather data for creative historical purposes. However, I'm a computer scientist, not a physicist or a photographer, and there seem to be a gazillion considerations. The environment ...
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3answers
193 views

What is wrong with this photo? [closed]

I just got a new camera (Panasonic ZS60) and I've been running into a few problems/questions while testing. Mostly it seems like leaves have a low-resolution, watercolor-like appearance in low-light ...
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4answers
491 views

Given aperture and focal length, what is the minimum distance for maximum resolution? [closed]

I'm going to describe a physics experiment involving imaging a proton beam using a CCD camera by reflecting it on a aluminium oxide surface, and we need some help about how close the camera should be ...
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1answer
378 views

What are Olympus' best in-camera Jpg settings for facebook

I usually shoot raw and make minimal in-camera post-processing with my O-M10 Mark II before exporting the photos to Facebook. Did anyone figure out what are the best in-camera jpeg resolution and ...
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3answers
4k views

Are online photos safe from damage?

The photos on one of my Facebook accounts seem to have lost a significant amount of resolution after they had already been posted. This account has other issues, for example, my timeline review is ...
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2answers
204 views

What is the resolution of the HDMI output on Olympus mirrorless cameras?

I have an Olympus E-PM2 and would like to know the maximum resolution (and possibly refresh frequency) of the camera HDMI output. The end aim is to connect it to a high-resolution, high-gamut ...
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1answer
93 views

Print Resolution [duplicate]

I've made several collages and wanting to print an 8 x 10 I'm constantly told "there will be a resolution" problem. I guess I'm ignorant of what happens when I reduce the "huge" jpg to a smaller size....
2
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1answer
8k views

What does “12MP + 12MP Camera” mean in the specs of a mobile phone?

I have seen some mobile phone specifications that mention "12MP + 12MP Camera", such as these specs for a Samsung Note 8: 12MP + 12MP Camera 8MP Front Camera 6.3" Display 64 GB Memory 6 GB Ram 2.3 + ...
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3answers
298 views

Before printing: manual vs printer resizing?

For example, for printing a big size image to an A4 page, its better to resize it manually to exact A4 size, or let printer software set it automatically? is there any difference on sharpness, etc?
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2answers
274 views

What resolution can I reach with a B/W paper negative?

I would like to expose some B/W chemical photopaper directly in a large format camera to obtain paper negatives. What is the maximum effective resolution I could obtain on said paper? assuming a ...
1
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1answer
73 views

How many Pixel for this print? [closed]

I need to make a Drawing in photoshop. This drawing will be printed on a 2A0 size (double the A0), and will have lots of names on it. The smalles ones will be about 2cm in height. Then in a later ...
12
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1answer
243 views

Can a blind person resize a photo independently?

I am a totally blind computer user. I encountered an accessibility barrier when I was attempting to use the site http://www.vitalchek.com/ to order a birth certificate. They require you to scan or ...
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3answers
6k views

What is a resolution unit?

Please note, I'm not asking what resolution is! I've processed a raw image and exported from Photoshop, and I've just noticed something in the image details that I've never seen before (I don't think)...
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2answers
232 views

Simulating increasing image distance

I have a set of aerial images, but no information about the original camera or angular resolution of the photos. I need to in some way decrease the resolution of the images in a way that simulates ...
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1answer
107 views

Can anybody recover pictures or data from a SD Card other than the Owner? [closed]

I have a Android phone and the SD Card got corrupted. It had pictures of important information and I want to know if someone other than myself can retrieve the pictures or data?
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3answers
93 views

Troubleshooting an image [duplicate]

I have an image, below, that seems "soft" and I'd like to know why. Possibly it was resized from something like 3000 x 3000 and not sharpened. Possibly it's a 500 x 500 image, expanded to 960 x 960. ...
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2answers
717 views

How do I maintain a high resolution when cropping a photo I want to enlarge after post processing?

I want to crop a photo that I will want to enlarge after post processing. What do I need to do to keep a high enough resolution after cropping in order to enlarge the photo and still maintain a high ...

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