Napioa - Wind Origins

Napioa - Wind Origins
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quantifies how much detail an image can convey

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4
votes
1answer
3k 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 ...
4
votes
3answers
226 views

How to resize a photo?

I know this is really a noob question, but it has always confused me. If something says "Images must be 210 px high and up to 375 px wide." how do I do that? I assume one uses a program to do it, but ...
4
votes
2answers
1k 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 ...
4
votes
3answers
534 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 ...
4
votes
3answers
195 views

How to estimate the minimum magnification to capture features of a certain size?

What is the correct way to estimate the minimum magnification (maximum subject distance) at which features of a certain size are resolved? My thinking is that given a system capable of resolving a ...
4
votes
1answer
442 views

Why is the image size different in portrait and landscape mode?

Today i noticed that my Canon EOS 5D mark II seems to create different image sizes when holding the camera in landscape or portrait mode. The Portrait Image size is always 3753x5634 pixels while the ...
4
votes
2answers
266 views

Do images need special treatment for high-resolution (“retina”) displays vs regular displays?

What are people's (experimentally tested if possible) views on sharpening images depending on whether they are to be viewed on retina or non-retina devices. Assuming resolution in the file is not an ...
3
votes
4answers
3k views

Is the camera sensor or the lens the limit to resolution?

I have a pretty high res sensor on my camera, but sometimes I have the feeling my lens doesn't even get to this resolution. How can I tell if my camera sensor has not enough resolution or if the lens ...
3
votes
1answer
13k views

How large an image do I need to print a 32″ by 18″ poster at 300 DPI?

I need to have an image printed as a poster 32″ by 18″ (about 80x45 cm) at 300 DPI, but I am unsure of how big the file must be. Also, what file format is best?
3
votes
2answers
203 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 ...
3
votes
3answers
833 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?
3
votes
3answers
253 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 ...
3
votes
2answers
84 views

Does reducing the resolution on phone cameras increase pixel size?

I understand that cameras are limited in processing power, and that it is better to manually resize photographs taken using them. One of my experiences: The Asus Zenfone 2 has a lowlight mode, which ...
3
votes
2answers
647 views

What do resolution figures mean in lens specifications?

I'm working in computer vision and choosing the right lens is obviously as critical as having a good sensor if you're going for quality inspection (for example). Sadly I have very little experience ...
3
votes
1answer
1k views

How does iResolution on Panasonic Lumix DMC-GM1 (Micro Four Thirds) work?

So there's this setting iResolution on my Panasonic camera, which allows values High, Standard, Low, Extended and Off. The manual of the camera doesn't tell me very much about this feature, so I'd ...
3
votes
2answers
3k views

What's a good iPhone application to view large images (5000px+)?

I want to view large images that I transfer to my iPhone from my computer. Obviously I cannot view them completely at a 1:1 ratio, but rather I want to be able to zoom in to the 1:1 ratio. The only ...
3
votes
1answer
118 views

Is there a tool which will resize photos based on level of actual detail in the original?

As part of my organisation workflow I like to scale down images where the quality of the photo is not making the most of the resolution (due to camera shake, low light graininess, or whatever). Is ...
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
2answers
353 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? ...
3
votes
0answers
52 views

increase resolution by taking several pictures - is it done? [duplicate]

What if I took two or more picture of the subject quickly one after another, then used these images to increase resolution? It seems to me that if I take two pictures of the same thing, then my ...
2
votes
2answers
378 views

What will be typical pixel count of digital camera 8 years from now? [closed]

Sorry if this question is not serious. I was discussing this with the friend and we had different opinions. I'd think others want to throw in their opinions. The question is: What will be typical ...
2
votes
1answer
973 views

Does reducing JPG resolution decrease, increase, or have no effect on image quality?

I'm getting ready to download a bunch of images from microstock photo agency Dreamstime. I'll eventually want most of the images in the 400x300 pixel range for my website when I'm done working with ...
2
votes
2answers
1k 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 ...
2
votes
3answers
3k 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
3answers
225 views

How do I get the right size image for a specific small photo frame?

I have a picture frame that is 2 1/2 x 3 1/2 inches. I would like to know what kind of dimensions, in pixels, I should use with my Nikon D3300 to make a photo for the frame?
2
votes
1answer
101 views

Why does my Sony Alpha 77 II sometimes change to a lower resolution on its own?

I've taken about 700 pictures with my new Sony Alpha 77 II, all at the maximum 6000x4000 resolution. However, when I reviewed the pictures afterwards there are a couple at the lower 4240x2832 ...
2
votes
3answers
4k 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
247 views

How many printed dots are needed to represent a pixel with an inkjet printer?

Context I have a digital picture with a size of x*y pixels. I'm trying to figure the maximum print size I could produce and still have an image which "look good" (relatively to human perception at a ...
2
votes
2answers
152 views

What is meant by pixels and DPI for photo submissions?

I am submitting a photo for an exhibit. They require a jpeg to be evaluated and then a print, if accepted. The rules indicate "Entries must be in JPEG format sized at 300 dpi on a CD (4” width of ...
2
votes
4answers
225 views

Since IQ is better at smaller apertures, and backgrounds can be blurred digitally, why not always shoot stopped down?

Is it correct to say that picture quality is better with small f number, but with very small DOF, this perfect quality degrades very quickly? So, is there any reason to shoot with wider aperture ...
2
votes
3answers
125 views

Best lens to photograph a large flat object

I need to accurately photograph mood boards. These are large (4x8 feet, 120x240 cm in my case) white or black boards with photographs, material swatches, pantone swatches pinned to them. The goal is ...
2
votes
2answers
144 views

Is resolution the same thing as active pixel count?

If you have a camera with resolution Y x X, then is active pixel count always the product of the resolution? Are they saying essentially the same thing?
2
votes
1answer
1k 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.
2
votes
1answer
509 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 ...
2
votes
2answers
80 views

Is the anti alias filter really a blurring filter?

I'm trying to dig into the nature of how the anti aliasing filter works. This is of importance to me as I need to capture small details at the very edge of the resolution limit of the cameras lens as ...
2
votes
1answer
355 views

Are mobile phone camera lenses good enough to support 20MP sensors?

With mobile phone cameras approaching 20 MP while maintaining small sensor sizes, pixels dimensions are typically around 1 μm or lower. What about the lenses? Are they good enough to produce an Airy ...
2
votes
2answers
763 views

How to estimate camera sensor size?

I am using a smartphone for capturing photos and I need to estimate the camera sensor size (mm*mm). I have the resolution (in pixels) and the focal length (in pixels). I can also measure the size of ...
2
votes
1answer
305 views

Is it better to take a high resolution photo and then resize it than to take it at lower resolution? [duplicate]

Possible Duplicate: Does it give higher quality to shoot in low-res mode in-camera, or to downsize high-res photos later? Compare these two scenarios (using the same camera): 1) You take a ...
2
votes
1answer
399 views

Is the BxU measure of lens resolution still used by anyone?

The background In 2004 DxO released DxO Analyzer. It pioneered a new measure of lens resolution that it called BxU or Blur Experience Unit. Luminous Landscape reported on it (DxO Explained) and ...
2
votes
1answer
1k views

Why are low-resolution versions of my images shown in Adobe Bridge?

When I browse photos in Adobe Bridge, they are often not as sharp as they really are, as if Bridge loads a low-res version of the photo for speed. This makes it hard to pick photos that are good, as I ...
2
votes
0answers
101 views

Help with calculating resolving power [closed]

I have liked your responses to the MTF questions and wondered if you could help me clear up an issue I have encountered. I have a Canon 7D with an assortment of EF and EF-S lenses. The current issue ...
1
vote
5answers
540 views

“10 m resolution” - Expressed as screen resolution (or other way photography noob can understand)?

The X-Sat satellite captures images of Earth "with a 10 m resolution multispectral (three spectral bands in the visible and near infrared spectrum) instrument". What does this mean? Particularly, how ...
1
vote
3answers
341 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. ...
1
vote
5answers
2k views

How does optimizer software reduce file size without reducing resolution?

There are numerous applications for reducing filesize. Most of them reduce resolution (e.g. from 300dpi to 72dpi) or reduce height and width. I tried http://www.imageoptimizer.net/ Surprisingly, when ...
1
vote
4answers
163 views

Increasing Pixels [duplicate]

I am having a company transfer a photo to a 17" x 24" poster board. They said I don't have enough resolution to upsize that much without losing clarity. So when I take a picture how do I dictate how ...
1
vote
2answers
140 views

What is the most honest way to cite pixel count (resolution)?

Canon cites the following features for the EOS-1D X: Total Pixels: 19.3 Megapixels Effective Pixels: 18.1 Megapixels Largest Image: 17.9 Megapixels (5184 x 3456) The discrepancies are explained ...
1
vote
3answers
473 views

Improve photo resolution [duplicate]

I have an old photo of my brother which is 29KB and resolution is 461 × 491. I need to print it in a regular image size. Is there a way to increase its size/resolution? either by iphone app or ...
1
vote
3answers
170 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 ...
1
vote
2answers
874 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 ...
1
vote
4answers
282 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 ...