Questions tagged [image-quality]

Image quality describes how well a photograph matches a perceived technical ideal.

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2
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1answer
162 views

Why there is a ripple on my image? [duplicate]

I'm taking several images of my company products, and this is what I considered the best shot. However, it has a sort of "rippling effect", which is more clearly visible when it's not viewed full ...
2
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3answers
361 views

How to make an image clearer?

I usually use two techniques to make a image clearer: Use a High Pass filter, then adjust the Layer Mode to be Soft Light Use the Sharpen module in Camera raw But these methods don't work in these ...
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2answers
4k views

What about DPI? [duplicate]

What about DPI when sizing to 2048 the long way? Mine are usually 300dpi but since FB (FaceBook) changes that to 72 dpi, would I be better off to change to 72 dpi myself before uploading? Thank you!
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3answers
175 views

Why does image quality vary across lenses, and what to look for when comparing?

I just picked up a mint SMC Takumar 28mm f3.5 lens. From what I read people say it provides quite good image quality. And the things I read about my Canon T3 kit lens 18-55mm f3.5-5.6 IS, is that it ...
4
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3answers
683 views

Will switching from Canon to Nikon as a way to improve image quality make my stock images saleable? [duplicate]

I'm an amateur currently owning a Canon 700D and a few lenses (18-55, 10-18, 55-250 and 50 1.8 STM). As I try to do some stock photography, image quality is my main concern, and 700D has a very ...
3
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2answers
1k views

How does the resize option 'bicubic auto' in CS6 incrementally upscale images?

It's been demonstrated that upscaling incrementally improves image quality, Empirical Study: Extreme digital upscaling, and that thread also shows that choosing 105% increments versus 110% increments ...
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3answers
100 views

Enhancing and Re-texturing with Photoshop

I have a picture of very low quality, I want to add the detail back by using textures from the internet. I know in video games a lot of time people will go and "re-texture" in game textures to give ...
6
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5answers
3k views

Do cheap filters have an effect on image quality?

Do cheap lens filters (UV, ND, CPL) affect image quality, color reproduction, sharpness, etc.? Do they really offer protection?
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1answer
1k views

What is the quality of Fotga filters?

I am looking for a cheap beginner filter kit. I came across Fotga in ebay, but I could not find more information about the manufacturer on the internet. Do you know about them? Is the quality ok?
0
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1answer
4k 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. ...
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5answers
331 views

Low quality photos even at superfine mode

I just purchased a Canon Powershot SX240 HS. I took a few pictures indoors (with the lights on as it is dark outside) and I am unimpressed. Zooming in on this on my PC, I can see they're grainy and ...
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3answers
11k views

Why is there a loss of quality from camera to computer screen [duplicate]

When i take a photo it looks bright, sharp and vibrant colours, but when it is transferred to my computer it looks so bad. Very dull and dark with weak colours. I have to brighten and increase ...
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5answers
897 views

Difference in photographs and real life?

So im new to photography. I was wondering, is there a difference in how our pictures appear in, say a selfie click (from the back camera, not front) and how we look in real life. I know the mirror ...
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1answer
219 views

How to improve quality and detail in faces and hair with Photoshop

I would like to use this photo on a smartphone wallpaper which means cropping it to vertical and in turn losing some quality. What is the best way to improve/enhance the details in the faces and hair ...
2
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2answers
807 views

Why my images get pixelated when I scale them up? [duplicate]

I'm a photographer, I usually edit photos through photoshop, lightroom. But when I try to scale the images it looks pixelated. I can't use the images for large banner or publishing. My camera model is ...
4
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4answers
8k views

How did CNN take that gigapixel photo for Trump's Inauguration?

http://edition.cnn.com/interactive/2017/01/politics/trump-inauguration-gigapixel/ I cannot see any form of blurring from motion, or stitching artifacts. It seems impossible to have been over time. ...
3
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1answer
110 views

Is this image artifact to be expected and is there a name for it?

I noticed that when I underexpose a subject at relatively high ISO (e.g., 1000) and I adjust the exposure in Lightroom, a slight artifact will sometimes appear. I was wondering if this is normal or if ...
2
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3answers
1k views

How can I get everything out of 120 film?

I've just started shooting 120 film in a 1956 Yashica Mat LM. I am new to film photography, but I know that 120 film is supposed to have resolution equivalent to a 100 megapixel sensor. Most film ...
46
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8answers
9k views

Do megapixels matter with modern sensor technology?

Are more megapixels good? Are more megapixels bad? Do more megapixels increase detail? Do they make my images sharper? On the other side, is there a point that is too much? Do megapixels cause ...
0
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2answers
183 views

What criteria is used to price the photographs from stock photography services? [closed]

I learned that photos are priced using resolution, frequency of usage and sizes. I am not able to figure out how. How do these criteria relate to the price of the picture ? This question is about ...
0
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4answers
257 views

How do you increase the amount of pixels in the width of your photo?

I have taken a photo in early November using my iPad mini when the weather was still really nivpce and warm. I would hate to not show it because for once, I'm pretty proud of my photos. I'm trying to ...
36
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5answers
4k views

Why are some big telephoto lenses so expensive compared to telescopes?

I'm looking at an ad for a used Canon 1200mm f/5.6L EF USM Autofocus Lens where they are asking $180,000. Yes, that's not a typo. I don't get it. I'm an amateur astronomer and I know I can buy a ...
2
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1answer
910 views

Sony A6000 blurry in peripherals despite sharp center — is this a mirrorless thing?

I used to have a mirrorless Sony Alpha A6000 camera. The problem I had with it was that, no matter how hard I tried to keep the center of my photos sharp, my photos always looked blurry in the ...
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2answers
271 views

I shot using S3 and it's pixelated

I generally shoot L + Raw but this time, I was doing a shoot for a new company and for some reason thought that I could use the "S3" JPEG setting (720x480). They are using them for online. They have ...
37
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8answers
14k views

If an image is rotated losslessly, why does the file size change?

I was searching for methods of lossless image rotation and happened upon this question which explains it rather nicely: Are "Windows Photo Viewer" rotations lossless? So I created a 256×...
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5answers
4k views

Do old manual focus prime lenses give better image quality than new kit lenses?

Do old MF lenses give better image quality compared to new kit lenses? I have Sony a6000 and I use it with the kit lens Sony E PZ 16-50mm F3.5-5.6 OSS. I shoot as a hobby and I am not a photographer....
4
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3answers
741 views

Poorly developed pictures or camera issues?

We've got a Zenit E with a Helios 44-2 lens and took pictures with it for the first time recently. We had it developed last Monday and got it back today and the results were awful! Here are some ...
3
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2answers
168 views

What effect does the body have on the character and quality of images?

I recently bought my first DSLR and made the decision to spend a similar amount on the lens as on the body, on the basis that the lens is where the optics are, and I would guess that changing the ...
0
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1answer
552 views

What are the differences between the Nikon D3300 and D300s?

I'm just browsing on the internet and I cannot decide which camera fits better for what I am looking for. For example, the Nikon D3300 has more megapixels than a D300S, but for some reason, I don't ...
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4answers
729 views

Am I being unrealistic about image quality expectations from Canon 70-200 F/4 USM IS L Lens?

I'm shopping for a 70-200 F/4 USM IS L, and took a few test shots with it. Here's a full resolution jpeg, and a 100% crop with a focus point highlighted. It was shot handheld with IS on at 70mm / F4 ...
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1answer
2k views

Why are some photos gray and dark in my lightbox?

Below are two photos of the same object, taken in the same location with the same lighting and same camera, only a few seconds apart. The only things that have changed are the position of the object ...
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3answers
2k views

Canon 70-200 f/4 L still sharp at wide open?

It recently came to my attention that lenses rarely perform at it's best when wide open. Is this the case with the Canon 70-200 f/4 L? Will I lose IQ by shooting at f/4 or should I shoot at 7.1 to be ...
2
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3answers
424 views

Why does my low key photo look pixelated on online services?

I captured a low key RAW photo with my Nikon D5100. I processed it using Lightroom, exported it as a JPG and then set it as my Facebook profile picture. Despite the initial JPG looking good, the ...
2
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3answers
2k views

Why is my picture blurry?

To start, here is some info about the following photo I took: Photo: Shutter 1/80s, f/1.8, ISO 100 Lens: Canon EF 50mm f/1.8 STM, no lens filter Camera: Canon T5i I took some pictures at my school'...
2
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4answers
671 views

Why did exposing for the highlights and raising shadows in Adobe Camera Raw result in so much noise?

I'm wondering why this picture is so grainy. It was shot at f16, 1/125 seconds, with an ISO of 100. I underexposed it to maintain the highlights in the sky but that is what I always do, and it doesn't ...
0
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2answers
3k views

Is 4288 X 2848 pixels an unfriendly ratio for quality printing and framing or am I missing something?

I have a Nikon D5000 that shoots 4288 X 2848 pixels. When I take pictures, I'm not thinking of how I may need to crop the picture later on or add a border / matting so that it fits into a common ...
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1answer
75 views

What are the settings to get a perfect picture in cloudy weather (low light)?

Using a GoPro Hero 4 Silver's default settings I took a picture in cloudy weather (low light). Here is the result I got which is very very bad! What settings do I need to get a good result in cloudy ...
0
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1answer
1k views

Does using more than one step-up ring affect quality?

Hi I'm new to photography / videography and would like to know if using 2 or 3 step-rings would cause any vignetting, flaring, or any sort quality reduction? My case is I'd like to step-up from 49-...
2
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1answer
446 views

Is a GoPro recommended for still images while doing tourism?

I have an iPhone SE and a GoPro Hero 4 Black. Which of them do you recommend using when you are doing tourism? And why? Kind of tourism: I'll be visiting London, Paris, Amsterdam, Prague, Germany, ...
7
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3answers
3k views

Make photos on Facebook nicer?

I upload photos to my Facebook page using the latest Lightroom. I'm wondering if there are some tips or tricks, or maybe hidden options on Facebook that makes the images served to the viewers higher ...
2
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1answer
213 views

Will a focal length reducer help me image deep sky objects using an 8" newtonian telescope?

Will a 0.5x focal length reducer help me to reduce the exposure time if I am imaging deep sky objects? I'm using a 1200mm focal length optical tube (f/6), a 32mm super view telephoto extension ...
3
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2answers
811 views

How can I remove white stripes from an old photo without losing detail?

I have this old photo: I want to remove these vertical white stripes from it. I have managed to remove it by using the darken blend mode with motion blur, but as you can see down below, I have lost ...
2
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1answer
412 views

Does it actually matter considering DxOMark's Perceived MPix Score for lenses?

The score of Tamron 70-200 f2.8 Di VC is higher than Canon 70-200mm f4L IS on an APS-C Canon Camera like the 550D. Does this make the lens better than an L Lens in terms of image quality? Autofocus? ...
7
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10answers
78k 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 ...
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1answer
150 views

Why are my pictures darker when I download them off of my camera? [closed]

I'm trying to download some pictures off of my camera and either on a flash drive, onto my computer, or even online, and whenever I try to do so the pictures become dull and dark. This is quite a ...
1
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5answers
2k views

Maximum distance between the camera and a specified object when the object is still visible on the picture?

Theoretically, what is the minimum distance between the camera and an object, where the object begins to not be visible ? Suppose that a camera has f as focal distance and the sensor size 2/3" and the ...
1
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3answers
23k views

How to preserve image quality when exporting psd file to jpeg?

my psd file is 9900px by 6600px and I want to export it to jpeg for a website. When I try to export it to jpeg with 72ppi and lower down pixel dimensions to about 1000px by 750px, the image comes out ...
2
votes
2answers
264 views

Why do white flowers always have a weird surrounding “glow”?

I have been trying to take pictures of dogwood blooms for a week now. I have the sharpness I want, but the flowers have a weird glow to them. The only post I could find about it is this one. Everyone ...
1
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1answer
2k views

Sigma 18-35 f/1.8 poor image quality

I recently bought for my D3300 two new lens. The Nikon 50mm f/1.8 and Sigma 18-35mm f/1.8 Art. As I expected, due to specifications and measurements in DXOMark, the 50mm lens is awesome. A lot more ...
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2answers
302 views

Camera producing blurred images under average lighting conditions

I have an old digital camera (A Fuji Finepix 6900Z) that, in automatic mode, tends to produce extremely blurry images, especially under slightly darker lighting conditions, most of the time but not ...