Questions tagged [resolution]
quantifies how much detail an image can convey
283
questions
16
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6
answers
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What does a client mean when they request 300 ppi pictures?
For an archaeological project, our client is requesting that all pictures taken should be in "300 ppi" (not 300 dpi).
I'm having trouble understanding what it means.
For now we have been ...
- 261
3
votes
2
answers
76
views
Why are my photos taken with Kodak Portra 400 and Fuji C200 coming out grayish?
I'm fairly new to film photography. I have a Canon AE1 and I'm kind of discovering how to use it, understand exposure etc. I've done photos with Kodak color plus 200 and they came out nicely, recently ...
1
vote
1
answer
73
views
What's the best way to approximate '4k' resolution from a security camera?
Odd question I know. I am considering getting a 4K Home Security Camera. I want to know how it will see my yard, so I took a photo where I will mount it using my phone. (Pixel 6a, focal 2.2 ...
- 11
0
votes
1
answer
127
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Photo quality if you upscale a low-quality photo with Gigapixel AI then downscale back
Gigapixel is a program by Topaz Labs that is able to enlarge small and low-quality (pixelated) photos, while enriching them with higher quality details (between and within the original pixels) by ...
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2
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103
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Why there is 96 dots per inch in description but when i opened image it is 300
Can some explain me please? Why if i right clicked the information about the file there is 96 dots per inch . But when i opened image in GIMP it says it's 300? Images were saved/downloaded from the ...
- 13
1
vote
0
answers
114
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Image quality expectation of 2K surveillance camera vs 4K iPhone? Resolution vs field of view
I'd like to be able to identify licenses plates as they enter our cul-de-sac. My question is triggered by a comparison between an Arlo Pro 4 and an iPhone 12. The iPhone produces extremely high ...
- 111
0
votes
2
answers
122
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Does Shutterstock have a minimum resolution, or pixel density?
Similar to Noise reduction, upload to shutterstock declined
I uploaded some photos to Shutterstock, which got through to review. They were all shot on an Olympus OMD E-10 Mark III, as JPEG's. All had ...
- 514
0
votes
1
answer
211
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Why is the resolution of a photo not equal to the camera's default resolution
I downloaded the photos from the Internet,these photos have exif, but the resolution of the photos is inconsistent with the resolution of the camera data(like data of dpreview).Let's take an example
...
- 13
0
votes
2
answers
122
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Why is the PAN GSD 4 times the MS GSD in satellites?
In most earth observation satellite specifications, the Panchromatic (PAN) Ground Sampling Distance (GSD) is 4 times the Multi-spectral (MS) GSD. But, I cannot find a detailed explanation on why that ...
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0
votes
0
answers
89
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What is the highest spatial frequency that can occur in an image? And the smallest one?
I searched the information and couldn't find the answer.
I don't understand about this and I don't know how to respond.
0
votes
1
answer
94
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Instagram Landscape Resolution: 1200 px Width or 1080 px Width?
It seems there are different recommendations for Instagram landscape format image resolutions available out there:
One say, the image should have 1080 px x 608 px (which is 1.91:1).
Others say, it ...
- 101
1
vote
2
answers
61
views
What setting in Lightroom export can affect resolution when printing
I have this picture I took with my Fuji X-T1 in JPEG Fine. I wanted to print it for a relatively big frame in black and white, so I converted it to B&W in Lightroom, exported it and sent it to a ...
- 149
1
vote
0
answers
30
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Sensor resolution and ISO performance [duplicate]
I keep hearing that
less megapixels = better ISO performance, because larger pixels capture more light
Suppose I shot something with a 4MP sensor and then downscale it to 1MP (4-to-1 pixel binning?)....
- 11
5
votes
3
answers
214
views
Perseverance Rover Camera Sensor Resolution
(I have two questions.)
I was looking at some pictures taken by the rover Perseverance, on Mars, and it got me thinking about the sensor it uses.
Turns out that it uses a, about, 2MP sensor in its &...
- 53
2
votes
2
answers
208
views
What does it mean when a scanner or printer has asymmetric resolution (e.g., 600 x 1200)?
What does it mean when a scanner or printer has asymmetric resolution (e.g., 600 x 1200)?
If you print/scan something that is quadratic, would you get different quality if you rotated it 90 °? Isn't ...
- 151
3
votes
2
answers
331
views
Trying to understand effect of lens lp/mm on image pixels
I'm trying to understand how lens quality in terms of lp/mm affects the pixels in an image.
Suppose I have a Sony IMX253 (1.1" sensor format, 3.45um pixel size, 4096x3000 resolution). In order to ...
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0
votes
1
answer
116
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Would a professional restorer be able to do a better job restoring a print if he were to scan the print at 2400 ppi vs 1200 ppi?
According to one answer on this question at Genealogy and Family History, a restorer of prints will often ask a customer to scan a print for restoration at the customer's scanner's highest resolution, ...
0
votes
5
answers
131
views
Is my monitor inhibiting my post processing?
My Acer x193w equals 1440 x 900, 0.283nm pitch, 16 million colors
I am thinking of upgrading the display, I'm editing photos and wonder if my suspicion of not being able to appreciate the fine detail ...
- 1
21
votes
5
answers
9k
views
Maximum useful resolution for scanning 35mm film
I have no particular project in mind so I'm just asking in order to have a better understanding:
Let's say I'm an artist shooting pictures with a 35mm camera and my point would be to make really big ...
- 321
0
votes
2
answers
217
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What is needed in order to produce good quality photographic wallpaper for a smallish room?
I am not a regular photographer. I'm interested in the idea of having a photographic harbour scene as wallpaper on my study wall. It may or may not be required fill the whole wall: I've given ...
0
votes
2
answers
332
views
How can I get the largest MB and highest picture quality from my Panasonic TZ100
I am an amateur (have been for many years) who is trying to take photos of jewelry for poster quality print at A2 size. The image of the jewelry needs to be able to look good at about 1/3 of the size ...
3
votes
3
answers
128
views
Transition between different film/sensor generations
During the history of photography, there has arguably been no component which has improved as much as the medium which records the light. The mainstream has gradually moved from glass plates, to 5x4&...
3
votes
1
answer
370
views
Is there a way to speed up working with large files in Photoshop? Like proxy editing?
I am currently using a camera that produces 60mp+ raw files which I pre-correct in Lightroom and then load into Photoshop for final editing.
As I have around 10 layers with various corrections, the ...
- 3,778
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3
answers
1k
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distance between pixels = a fixed measurement (inch, foot etc)?
Let's say the distance from my camera to my object is 3 feet. The object is a 6 foot long pole. The pole has a mark every inch. Will the number of pixels between the bottom 1 inch be the same number ...
2
votes
3
answers
1k
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 ...
- 352
0
votes
2
answers
121
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 ...
- 750
0
votes
2
answers
167
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 ...
- 3
1
vote
1
answer
49
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?
- 11
2
votes
1
answer
413
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/...
- 123
0
votes
2
answers
210
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,...
- 85
0
votes
3
answers
829
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 ...
- 111
1
vote
3
answers
236
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 ...
0
votes
2
answers
103
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 ...
1
vote
2
answers
348
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 ...
- 143
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votes
3
answers
1k
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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 ...
- 143
2
votes
1
answer
89
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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-...
- 73
1
vote
3
answers
170
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 ...
- 137
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vote
2
answers
1k
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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 ...
0
votes
1
answer
3k
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 ...
0
votes
1
answer
520
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 ...
1
vote
2
answers
360
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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0
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1
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145
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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 ...
- 101
0
votes
2
answers
56
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 ...
2
votes
2
answers
2k
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 ...
- 23
0
votes
2
answers
1k
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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 ...
- 59
3
votes
4
answers
2k
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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 ...
- 133
7
votes
3
answers
3k
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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 ...
- 771
0
votes
2
answers
704
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 ...
- 125
2
votes
1
answer
79
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 ...
- 121
2
votes
4
answers
1k
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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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