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quantifies how much detail an image can convey

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1
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3answers
164 views

Is this rather high resolution possible to achieve?

I'm looking to make a sticker with wood texture printed on it for a cable concealer of 1 meter. From my calculations, this requires a digital image with a DPI of 300 and a resolution of ...
0
votes
1answer
234 views

Can a image have different XResolution and YResolution?

In EXIF data I see stuff like XResolution = 72 YResolution = 72 I'm trying to display that on a site, and I was wondering if I should display both or just a single "72dpi" ? Are there any cases ...
23
votes
5answers
4k views

Is there any practical difference between saving at 300ppi or 72ppi?

I often see statements in discussions about web displayed image quality that go something like this: "I only upload pictures at 72 dpi and 1200 pixels on the long edge, so if someone copies and prints ...
0
votes
1answer
486 views

What's a good size/resolution for picture proofing?

What's a good size/resolution when showing pictures to client using a online tool for proofing ? I've noticed that 1350x900 and 72ppi is pretty good, considering image quality and size on disk. ...
1
vote
2answers
354 views

What would look better - reduce the size of image and print with lower DPI or increase the DPI instead?

I'll give an example, to make my question a bit more clear. If I have e 12Mpx camera (D700, always shooting in raw format), the highest possible resolution is 4256 × 2832. Obviously, in most cases, ...
1
vote
0answers
221 views

Why does our Canon PowerShot A1400 keep resetting to “L” resolution?

We have three Canon PowerShot A1400 cameras. Resolution on all of them has been set to S. Two of them hold this, but the third one resets itself to L every time we turn the camera off and on again. ...
1
vote
3answers
300 views

Substitute Samsung Note 3 Cam for SLR for Product Shots for eCommerce?

I'm wondering if instead of purchasing a SLR, if I can't just use my Samsung Galaxy Note 3 camera instead. This is for eCommerce photos; women's clothing, tops and bottoms namely and some jewelry. ...
2
votes
3answers
2k views

Camera/Still Resolution vs Video Resolution

Why do high resolution cameras shoot stills at high resolutions, but only typically shoot video at 1080p which is about 2 megapixels? For example I have a Sony-NEX 6 which can shoot stills at 16 ...
2
votes
2answers
581 views

How does sensor size relate to image resolution?

How is it possible that with a particular sized sensor (say APS-C) it is possible to get different sized image cameras (by this I mean a 10 megapixel camera, a 15 megapixel camera etc)? Where does ...
-7
votes
2answers
260 views

What is Nineteen Megapixels minus Sixteen Megapixels?

Recently I opted to buy a camera. I asked my brother a suggestion regarding my purchase, and suddenly he started to ask me number of questions. I was able to answer all the questions, except this one: ...
1
vote
2answers
232 views

Oversampling: Worth it, and will it improve low-light? [duplicate]

I own a 10.2MP Sony A230, and I like to take it with me to important family and friends events... I rarely print my photos, and even then never more than around A4 size, they generally end up on ...
3
votes
3answers
475 views

How are very high resolution images displayed on low resolution monitors?

How is an image with resolution larger than the monitor resolution displayed? How are the extra pixels handled?
1
vote
0answers
45 views

LED HD TV as a monitor for post processing purpose [duplicate]

Can I use a 47" 3d led hd tv with my pc to post process my photos? I am not sure how the quality will be on such a big screen photo being of some 4900x3600 approx.
3
votes
2answers
230 views

What changes (specifically improvements) occur to image quality when you reduce the resolution in post?

If you shoot a lot of megapixels, let's say 21MP, what image improvements/changes will occur when you downsample the image to a resolution around 1920x1080 for display on a normal 1080p HD television? ...
-2
votes
1answer
357 views

What is the best camera to get that will give you a very nice photo on canvas print of 11 x 15 or larger? [duplicate]

I have tried several times to order a canvas print and it always comes back that the picture submitted will not work with the 11 x 15 canvas print and even an 8 X 10 wont work? I have a cannon E ( ...
0
votes
2answers
391 views

What is the resolution of a good compact camera in lines resolved?

After doing some internet research myself to answer this question, I finally wind up asking here. Compact cameras have similar "megapixels" than decent dSLRs, but way lower sensor sizes and certainly ...
1
vote
2answers
16k views

What is the optimal resolution required of a picture to print on an A1 size canvas?

I am working on a poster in which the background is a photo that I took myself (18 MP). I am wondering what would be the best resolution for printing this photo on an A1 canvas. This might sound very ...
20
votes
10answers
19k views

How many “MegaPixels” can the human eye see?

There is obviously a limit to what the human body can process, such as frames per second. My question is how many MegaPixels would it take before the human eye can no longer differentiate it from ...
6
votes
3answers
583 views

Why is resolution more important for landscape photography?

I have heard countless times that "resolution is of utmost importance for landscape photography". This also comes up often when landscape photographers look to medium format for it's detail and ...
5
votes
3answers
635 views

For MTF, why does 10 represent contrast while 30 represent resolution?

I'm trying to learn to read MTF charts. Everything is making sense to me, except why most explanations of MTF will refer to the 10 l/mm line as a measure of contrast while referring to the 30 l/mm ...
0
votes
2answers
592 views

Best dpi for printing a 48x18 inch at 200%?

I have an image in photoshop I want to print at 200%, and right now it's 48x18 inches, and the resolution is 72 dpi. I read somewhere that changing it to 600dpi would allow me to scale it by 200% at ...
9
votes
4answers
20k views

Are 2 megapixels enough for HD resolution pictures?

HD pictures has 1920x1080 = 2073600 pixels = 2025 kilopixel = 1.98 megapixel. Does this mean that we can take HD pictures with a 2 MP camera? If not, why not?
6
votes
3answers
3k views

Image quality when using the same lens on 16Mpix vs 24Mpix

I'm considering buying a new camera and my two candidates are Nikon D7000 and Nikon D7100. I heard that 24Mpix sensor needs very good lens to produce sharp images. Considering that I currently have ...
0
votes
1answer
966 views

How can I compare MTF50 to a manufacturer's MTF chart?

Currently working with a trial-copy of QuickMTF (Imatest's software kept crashing on me), and I'm trying to get some basic MTF readings for my Canon 85 f/1.8 lens on a 6D. My first set of test shots ...
1
vote
2answers
623 views

Canon a2300 resolution problem

I have Canon Powershot a2300. It was working fine till yesterday but i dnt know what settings have been changed to reduce the size of the image. Previously images sizes were about 4mb now it is kb's ...
2
votes
1answer
402 views

Does increased resolution compensate for diffraction?

Given a sensor size, the diffraction limit (and cut-off) are determined largely (entirely?) by the density of pixels on the sensor. With the trend of ever-increasing megapixel counts, this means that ...
1
vote
1answer
206 views

Optimal JPGs resolution out of a Point & Shoot camera for storage size and quality? [duplicate]

Simple point & shoots don't produce RAWs, they produce JPGs. Let's assume you have a modern P&S which shoots 16 megapixels maximum in Super Fine, Fine and Normal JPGs. First side question is ...
1
vote
2answers
818 views

How to scale down images in Lightroom while maintaining quality?

I am working with a product photographer who is having issues understanding dpi and resolution. She is shooting products to go onto a website using a Canon 5D and an ortery box. I have asked her to ...
0
votes
3answers
573 views

Why won't an online service print 16x20 from an 8 megapixel cell phone photo? [duplicate]

Possible Duplicate: Is there a general formula for image size vs. print size? I have a wonderful photo from my cell phone and several people would like a 16x20 or at the least a 11x14 ...
3
votes
2answers
181 views

What resolution should be used for images that are to be used in focus stacking?

I am taking a series of photos using a dSLR camera attached to a microscope that will be used in a stack to produce a single image with high depth of field. Can anyone recommend a level of resolution ...
7
votes
2answers
254 views

What does it mean to excite aliases?

I recently came across the phrase 'excited aliases.' The phrase seems to be related to lens sharpness in some way. While a web search turns up the phrase a few times, I am unable to locate a decent ...
12
votes
4answers
980 views

How can a high resolution camera matter when the output is low resolution?

The question is inspired by this question showing these pictures. The accepted answer suggests that these pictures were taken by a 8x10 view camera, and the use of a 8x10 camera was confirmed in the ...
4
votes
3answers
450 views

Shooting images smaller than the sensor size

I have a d600 and I appreciate very much the high resolution I get (useful especially for landscapes), but for most other subjects I find 6000 x 4000 to be overkill, making post-processing ...
0
votes
3answers
244 views

How can a 900X500px image have ~5400 DPI? [duplicate]

Possible Duplicate: Does the dpi number reported by camera in JPG have any meaning? I am investigating on the size and resolution of the photographs posted on the Internet. I have visited ...
5
votes
6answers
38k views

How to reduce file size without losing quality or resolution?

I have 2,300+ pictures that I want to transfer to my phone but on their original size they take up a lot of space (6.44gb) I would like to trim is down to without sacrificing quality or resolution. I ...
6
votes
3answers
404 views

Is a low-resolution scan of B&W negatives expected from a drugstore?

Shoot a roll of ilford color process B&W. Take to Walgreens. Receive CD (and negatives). Import to Aperture, crop a bit, and ask for an 8x10. Get a warning that there's not enough pixels to make a ...
1
vote
4answers
264 views

Low light pixel aggregation

If a lower resolution end image was acceptable, wouldn't it be possible to halve the width and halve the height of a low-light image and take the sum of the light in each block of 2x2 pixels when ...
4
votes
1answer
2k views

Is it better to edit photos with a high pixel per inch monitor?

Title says it all Is it better to edit photos with a high pixel per inch (PPI) monitor or is a bigger monitor better? eg. My current monitor Panel Size: 23.6“ Wide Screen True Resolution: 1920X1080 ...
1
vote
3answers
402 views

Dots per inch calculation [duplicate]

Possible Duplicate: What does DPI mean? I have a hard time understanding the concept of dots per inch. I've looked the wikipedia article and I am still unsure. Say I have a 4"x6" photograph ...
7
votes
1answer
643 views

Comparing 1:1 zoom on a 27“ screen at 2560 x 1440 vs 22” screen at 1680 x 1050

When using Adobe Photoshop or Lightroom for example, and zooming the photo at 1:1 ratio, when you work on a 22" screen at 1680 x 1050, there is an great inside zoom. On such a screen the pixel are ...
7
votes
4answers
5k views

Why are two pictures that are the same dimensions/dpi such different file sizes?

I am working on a project where two my images must be AS SMALL AS POSSIBLE. I have scaled two images to the same dimensions/dpi and I've checked the color profile in Photoshop CS6 and they both look ...
4
votes
2answers
824 views

Are cropped images from a full-frame sensor equal quality to full APS-C images despite the lower resolution?

If I put a DX lens on a Nikon D700, it will reduce megapixels to 5.1. I understand that FX pixels are about 2.5 times larger than DX pixels. Would I be correct to assume that, therefore, my FX image ...
-1
votes
2answers
356 views

How to reduce the image resolution to increase ppi?

Having an photo of 4000x3000 resolution with 240ppi. Is it possible get a resolution of 400x300 resolution but with higher ppi?If possible how to do that?
3
votes
1answer
1k views

Lightroom Exporting for web optimum settings

When exporting a batch of photos in LR you get a variety of options. For photos that are going to be eventually printed I would think that the highest resolution and 300ppi would be a good starting ...
3
votes
3answers
247 views

In what way will affordable high density displays affect photography?

The last 6 months have been quite revolutionary for the display technology with the new iPad & Retina Macbook Pro and their 200+ ppi displays that double the typical pixel densities. I have seen ...
-1
votes
1answer
178 views

Best Digital Scanning techniques - help

I want to scan a paper shown below. Actually I need the photo of the jets taking off, I dont need the entire newspaper. This is what I have - I have to do color scanning, I have a HP scanner which ...
0
votes
1answer
973 views

What does pixel count suggest? [duplicate]

Possible Duplicate: Do megapixels matter with modern sensor technology? Mobile phone manufactures now advertise their phones having camera with bigger megapixel count. Does it mean the ...
9
votes
3answers
2k views

Is there a photoshop plugin or any other piece of software that can do super resolution?

I want to combine multiple photographs of the same landscape to increase the resolution of the final image. More details on the method here: http://en.wikipedia.org/wiki/Super-resolution What ...
1
vote
3answers
2k views

Can I increase the resolution of a six-megapixel photo to print on a large canvas?

I took a photograph and the information tells me it is 3008x2000 and 2.2 MB. It's a darker image of two people and their reflections in a window. I'm trying to get it printed on a canvas by ...
2
votes
1answer
827 views

Resize and sharpen or sharpen and then resize?

Is there a logical reason why one is preferred over the other or it does not make any difference either way? Edit: I meant resize as in downsizing the image.