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

learn more… | top users | synonyms (1)

2
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3answers
62 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, ...
3
votes
1answer
115 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 ...
5
votes
2answers
218 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
votes
2answers
107 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
vote
0answers
48 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 ...
1
vote
4answers
141 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 ...
0
votes
4answers
131 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 ...
-1
votes
3answers
108 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 ...
0
votes
1answer
92 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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votes
5answers
232 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 ...
1
vote
1answer
101 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 ...
0
votes
1answer
81 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.
2
votes
6answers
612 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: ...
0
votes
3answers
109 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 ...
3
votes
0answers
50 views

How does the digikam quality sorter work?

I'm not quite sure this is the best place to ask, but there is a digikam tag, so I think it is not off-topic. I'm trying to use the digikam quality sorter, but I fail to understand how it works. The ...
2
votes
1answer
56 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 ...
1
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0answers
74 views

Can I size an image so it can be printed at 5×7" but looks bad at sizes above that? [duplicate]

I generally try to print all images for clients and require that they purchase a print prior to the release of any "small sized file" for holiday cards, web-use, but a faux-pas in my new (app-based) ...
2
votes
2answers
162 views

What is the “airy disc”, in simple language?

In my understanding, this is relevant to photography because if you are shooting light of a certain wavelength (or primarily so, and such as: a blue scene), your aperture size can affect the sharpness ...
1
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0answers
26 views

Can I get a high quality image from a rostrum mounted camera and bounce flash?

I have some approximately A3 sized documents I need to scan but don't have access to an A3 scanner and it's beyond my budget to purchase one. However, I can probably run to a rostrum stand for my ...
3
votes
1answer
229 views

Does writing EXIF tags influence jpeg quality?

If I understand well then the EXIF data is written in an extra space of the JPEG file. When I add or modify an EXIF tag does this leave the picture untouched? I searched for this and I was not able to ...
2
votes
4answers
203 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 ...
0
votes
2answers
213 views

How do I set up my camera to get a high enough resolution for printing at 300dpi?

How do I get the highest resolution my camera can take a photo at? I want to be able to have a picture as Photoshop-ready as I possibly can. For example, if I need to upload high resolution art at ...
13
votes
3answers
2k views

If I want to shoot darker shots, is it better to increase the lighting and then darken in post to retain clarity?

I'm just getting started - in my last shoot, I was using a 6D with a 50mm/1.4. In low light, the pictures looked fantastic on the viewfinder but on the computer screen, appeared extremely grainy. ...
0
votes
2answers
53 views

Checking images for corruptions [duplicate]

Is there a tool that can be used for batch checking images for corruptions such as these (in this case, occured due to error while moving file),
0
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0answers
29 views

Canon Power Shot A2200 [duplicate]

Canon Power Shot A2200 digital camera. Photographing my paintings to make art prints for sale. Need high-res pixel #. Say, equal to 300dpi. Best I'm at now is 72pixel. I know camera can do much ...
5
votes
1answer
292 views

In terms of “image quality”, is the sensor the only spec of a DSLR I should look at when shooting RAW?

There are so many specs which don't have any influence on your RAW file. I'm trying to isolate the factors that matter for image quality only. For example, I'm not sure about the processor : of ...
0
votes
1answer
45 views

Recommended F-Stop for older Canon 35mm F/2 [duplicate]

I have a few year old Canon 35mm F/2 lens (Here it is on Amazon). I've been shooting wide-open, but I realize that doesn't make for the sharpest photos. What would you say would get me the sharpest ...
0
votes
1answer
106 views

How to take the night skies and meteor showers? [duplicate]

I have a Nikon D5200 and last night I went to take few night sky pictures hoping to capture a passing meteor. There were plenty of meteors I seen last night, but I was able to capture only one. ...
1
vote
3answers
134 views

How can I get everything out of 120 film?

I've just begun shooting 120 film in a 1956 Yashica Mat LM. I'm new to film photography, but I know that 120 film is supposed to have the equivalent resolution to a 100 megapixel sensor. Most film ...
1
vote
4answers
111 views

Will a TIFF or JPEG be a better choice for detailed representation of an old painting?

I wish to purchase a high resolution photograph of an old painting to project and copy. The images are either in TIFF format, which is 148.8 mb, or JPEG, 24.3 mb. Would either of these give me the ...
3
votes
2answers
334 views

What is the difference between a very expensive flash and a average priced flash?

Let's say between a Profoto B1 flash and a Nikon SB-910 flash. I understand flashes have TTL, HSS, Output power, etc., that makes them different, but let's say in a completely equal scenario that a ...
0
votes
1answer
184 views

Why are my Sony DSC H300's images good on the camera, but poor on the computer? [closed]

I bought a new Sony DSC H300 camera. Each time I upload images to my computer the picture quality shows a big change. The picture quality on the camera is good, but the picture quality on the computer ...
1
vote
0answers
200 views

Is there a meaningful image quality difference between the Canon Powershot SX410 vs SX510?

Can you show me a picture difference between the Canon Powershot SX410 and the Powershot SX510? Is there a noticeable difference between 12 megapixel and 20 megapixel here? I want to buy one of these ...
-2
votes
3answers
454 views

What is the best resolution and quality for website [duplicate]

I'm thinking the pictures on my website are too large and heavy. I was looking for the best resolution and quality to export my pictures. I found some information that says 72dpi is enough resolution ...
2
votes
1answer
84 views

Are there significant image quality differences between similar small sensor cameras?

My now old compact camera died of a lens failure, so I'm in the market for a replacement. What I'd do if I were looking for a new SLR/mirrorless-esque camera would be to go and read the thorough ...
2
votes
2answers
107 views

How to retain the most data for editing?

I have started a bit of astrophotography, an important part of which is the editing of the image to bring out stars etc not even visible after a ~40 second exposure. To do this the image must retain ...
4
votes
3answers
2k views

Why do different smartphones with the same megapixel camera resolutions have different quality of image?

There are different brands of smart phones available. Frequently two different big brand smart phones (Nokia, Samsung , Apple, Sony etc.) with the same Megapixel count have a different quality of ...
4
votes
1answer
108 views

How do I compare camera signal-to-noise ratio based on camera sample images?

I want to choose a camera with the best signal-to-noise ratio within my budget. I want to ignore producer's marketing BS and reviewer's presumptions that "something's really cool". I know about ...
1
vote
4answers
210 views

How can I compare different lenses in terms of quality?

I am currently looking to buy a new lens to replace with kit lens, having an extra reach, faster, better image quality and also better video quality. Without buying all the lenses I have shortlisted, ...
0
votes
1answer
154 views

What causes chroma noise in an image sensor

I'm trying to understand what is causing chroma noise in an image sensor, specifically why it is so visible when the ISO is set to a very high value (which for CMOS I guess means that there is an ...
1
vote
1answer
138 views

Imbalance in green pixels

Question in brief: at a sensor level what are the typical causes of an unequal response between adjacent green pixels? Background: I'm experimenting with a sensor, which is typically deployed in the ...
0
votes
2answers
88 views

Why is my Sony A57 creating low res JPGs?

I have used a Sony A57 since they became available. I always have the resolution set for 16M and FINE for JPEGs. I just took an important set of photos that were intended for large blow-ups. But ...
1
vote
1answer
89 views

Does sensor type affect image quality? [duplicate]

I've recently discovered snapsort.com and use it to compare other cameras with the one I own. When comparing Pentax k10D with the K-x model I learned that the K-x has a CMOS sensor and that ...
3
votes
5answers
140 views

Can the specs for a digital camera indicate to me the color quality before buying?

Is there an item in a camera's specifications that can indicate the quality of color reproduction in that camera? There are a lot of things you can find out about a camera before buying from reading ...
1
vote
1answer
107 views

How can I properly take advantage of this equipment?

I'm a newbie to photography yet I have been asked to "figure out" how to do certain things. Now, before ending up here I went old-school and picked the manual to the camera I was given (Nikon D3100), ...
0
votes
3answers
104 views

Will using a DX lens on an FX Body compromise ISO performance? [duplicate]

In terms of ISO, is the ISO performance compromised? Say I was using a 50mm DX on my FX body, would I have a lower quality ISO performance vs an FX 50mm on my FX body?
0
votes
0answers
105 views

What is the performance of a mirrorless system camera compared to DSLR in dim light? [duplicate]

I work for a photo studio with a focus on wedding photography. Yesterday, I came across an system camera (the Olympus OMD) and saw some astonishingly strong results shot with that camera. I was ...
0
votes
0answers
60 views

How much of a difference is there saving as RAW over JPEG? [duplicate]

I've heard about RAW over JPEG's for image quality but how much of a difference is there? is there a way of showing a visual representation in quality?
1
vote
1answer
156 views

Does shrinking the upscaled picture improve its quality (in terms of blur)?

Take a look at the following diagrams: The original picture: The upscaled (2x, bilinear) picture: In both cases the first item in the first row is the input image. There is its 2d fft next to ...
0
votes
1answer
216 views

How do you downsample an image in Photoshop CS6?

I've tried reducing size but the quality is greatly reduced as well, not to mention custom pixel ratios will make it look ridiculous. What should i do? EDIT: I have used a 1936 X 2592 JPEG picutre ...