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Questions tagged [image-quality]

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

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2answers
179 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 ...
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4answers
252 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 ...
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2answers
200 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
13k 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
3k 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
655 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 ...
4
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2answers
154 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 ...
6
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2answers
2k views

Does converting image file formats affect quality?

Does converting image formats, such as from JPG to PNG, have any effect on image quality? I know converting from RAW to JPG has disadvantages, but what about other format conversions?
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1answer
513 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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1answer
1k 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
1k 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 ...
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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'...
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2answers
2k 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 ...
2
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1answer
863 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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1answer
71 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 ...
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1answer
764 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
432 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, ...
3
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2answers
690 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
386 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? ...
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1answer
131 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 ...
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5answers
1k 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 ...
2
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1answer
191 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 ...
8
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5answers
18k views

What causes these streaked rays from light sources?

I recently bought an LG G4, whose camera can shoot in an auto and both manual mode (I can manually set the iso, aperture). I shoot 100% of the time in auto. It takes better than average photos at ...
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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
258 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 ...
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1answer
197 views

Low quality photo to look good [duplicate]

As I have many pictures in which I have taken from my mobile phone whose picture quality comes good but not good as DSLRs or any HD quality camera. To look my photo or the main object in picture look ...
2
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3answers
2k views

Does the image quality gets affected when taken in burst mode

I am doing this project in which I have to take multiple shots of a scene in burst mode. The image is not moving. So, if I am taking photos in burst mode, will the image quality of the latter images ...
1
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1answer
72 views

Does MP influence ISO?

I use Sony Nex 6 and I noticed that on not really high ISO (let's say 1600) pictures get discernibly grainy. Also I know that the next's model main feature is larger image size (24MP comparing to 16MP ...
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1answer
360 views

uniform lighting when taking top view of object [duplicate]

What is the best way to take pictures of an object from top view How should the light be placed ? *to avoid shadows and how should we construct the chamber for this ? *for uniform lighting over ...
14
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1answer
3k views

What turned the colors psychedelic?

Took this photo through the window of a Boeing 737 with a Fuji X-S1. This is an out-of-camera JPEG with no digital filters added. The water below the cloud was almost uniformly navy blue yet it came ...
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1answer
487 views

Can you duplicate RAW files without losing quality?

A lot of people say that "what happens if I edit my RAW" or "do you lose RAW when you convert to jpeg" and I assumed that if a basic function such as file duplication (copy paste) was valid, they ...
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4answers
2k views

How viable is copy pasting a professional's settings so that a noob can produce high quality photos?

How viable are "photography templates" where a professional gives the exact settings to use in a specific set up (say afternoon natural daylight at the beach, 50mm lenses with 3.5f at 3ft distance ...
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3answers
161 views

Is it possible to improve the quality of images I grab at 90fps?

I am using "Raspicam" (https://www.raspberrypi.org/documentation/hardware/camera.md) for a robotics project, where I need to get as many images as possible in 1 seconds. Camera works perfectly fine ...
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1answer
133 views

How can I automatically downsize images which have more pixels than needed for the actual resolution? [closed]

Many factors affect the true resolution of an image — the actual detail resolvable — including lens quality, sensor size and technology, noise and noise reduction, motion blur and camera technique, ...
4
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3answers
2k views

Does a full frame with a teleconverter perform better than an APS-C without a teleconverter?

Context Putting a teleconverter on a full frame lens magnifies the center of the lens but gives more reach due to that with some drawbacks. I've rediscovered focal reducers that do the opposite, ...
6
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2answers
435 views

Do nano coatings actually make a difference?

Nikon famously has "nano coatings" on it's higher ended lens, and many photographers online swear that this visibly improves their images. However, it's not clear what the actual improvement is (...
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2answers
604 views

What temperature lighting should I use for photographing old paper photos?

I know I should be using daylight lighting system to achieve natural looks of photographs, but I don't want to spend a lot of money for profesional lighting equipment, so I was thinking to just put a ...
2
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3answers
408 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 ...
1
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0answers
69 views

Canon vs Sigma vs Tamron lenses? [duplicate]

Is there a significant quality difference between lenses made by Canon and those made by Sigma or Tamron? Specifically, I have been looking at the EF 300mm f/2.8L IS II USM: but if the Sigma or ...
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4answers
414 views

What is a “losee file format”?

I am wondering what a "losee file format is". I came across the term in my photography class book The exact question in the book is: Which of these file formats are considered losee? Does that ...
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4answers
2k views

Why do camera manufacturers advertise image processors but not the sensor itself?

Camera manufacturers often advertise their image processors version in advertisements, such as DIGIC 6 (Canon), EXPEED 5A (Nikon) and many more. But we never see they advertise the sensor they are ...
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3answers
4k views

Why does computer screen size affect image quality?

I have a 13 inch screen and my friend has a 27 inch screen. If we both download the same photo from my website, the file size and photo dimensions are the same (70ko and 300x450 pixels). However when ...
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1answer
470 views

Digitizing old photos flatbed scanner or dslr?

After plenty of research I realised that flatbed scanners lose the battle to dslr when it comes to scanning negatives as seen in the picture: But what about old basic paper photos? Will an average ...
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5answers
4k views

Why are my portrait pictures from my new DSLR low quality and “pixel like”?

I recently got a Canon T5i and I took some pictures of my nephew. However, they're very poor quality - they look very "pixel like". Is the poor quality because it was a RAW file, the lighting or was I ...
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1answer
159 views

Is it possible to paint a nearly identical copy of an old photo? [closed]

I was wondering if it would be possible for artists or graphics designers to paint an almost identical copy of an existing photo? I ask because I have a grainy photo and it would be nice to see it ...
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1answer
331 views

Is there any way of saving this blurry photo??? [duplicate]

http://i.imgur.com/Lb9FXGe.jpg Is there ANY way to save this blurry photo? I have photoshop. PLEASE HELP.
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8answers
9k views

Why are some photos sharp in the center, but soft on the edges?

I have seen many photos which are quite sharp in the center, but soft on the edges. What is the reason for this, and how can I prevent it? My first guess is that it has to do with the lens. EDIT: ...
3
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3answers
1k views

Does having an autofocus motor in body vs lens affect image stabilization or image quality? [duplicate]

In terms of image quality and image stabilization, what difference does it make to have an autofocus motor in-body vs.in-lenses ? The question How do camera body motors compare to in-lens motors for ...
7
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1answer
831 views

How does the digikam quality sorter work?

I'm trying to use the digikam quality sorter but I don't know how it works. The documentation I found that most looks like a tutorial is an almost 1-year old unaswered question on the digikam user ...
2
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1answer
250 views

Downsides of using M42 or T mount lens on newer mirrorless bodies?

Context I've purchased an older 400mm f6.3 t-mount lens and I'm considering buying a Helios 44-2 2/58 M42-mount lens. I've used the 400 for a week on my Sony a6000 and I don't see any problems with ...