Questions tagged [image-quality]

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

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198 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 ...
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2answers
1k views

Grainy/low quality pictures - how to stop?

I recently got a Fuji S8200 (bridge) camera and I just can't seem to take a decent photo with it at all, and I'm not sure what I'm doing wrong. Here are some examples: http://mariasdesk.co.uk/...
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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 ...
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1answer
73 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
398 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 ...
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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
568 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
171 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
137 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, ...
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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, ...
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2answers
494 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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1answer
1k views

How does focal length determine lens quality? [duplicate]

What does an 18 - 50 mm lens mean? Are those numbers the first focal length and second focal length? How do you use this parameter to judge what kind of lens to buy? Does more equal better?
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2answers
660 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 ...
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0answers
82 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
458 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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2answers
580 views

Are there still two classes of Canon IXUS/Powershot/IXY/ELPH around?

When I last time bought a Canon Digital IXUS compact camera, there were basically two series available: "Ultra-compact" Digital IXUS 65 ... 70 ... 75 ... 85 IS ... (Europe) Powershot ...
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2answers
503 views

Picture quality of a nice point and shoot with same size sensor and same zoom range as an interchangable lens camera

I'm trying to figure out whether I should get a camera with an interchangeable lens or a point and shoot that seems (based on the specs) very similar and the same price. The two in particular I am ...
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3answers
5k 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
518 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
163 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
353 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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13answers
43k views

How does the lens diameter influence photo quality?

I have tested two different 50mm lenses in my camera. One was a Nikkor 50mm ∅52mm. The other one was a Sigma 50mm ∅72mm. I took some pictures with both lenses using the same setup for aperture and ...
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1answer
269 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 ...
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0answers
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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) ...
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2answers
514 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 ...
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0answers
69 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 ...
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2answers
6k views

Does image quality of a lens depend on the camera used?

I recently bought a Canon 50mm f1.8 for my Canon 1000d. But, I find that the images are not as sharp as those I saw in the reviews or any other images taken using other cameras like the 550d and above....
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1answer
1k 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 ...
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2answers
75 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),
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1answer
405 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. ...
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1answer
350 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 ...
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1answer
63 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 ...
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4answers
2k 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 ...
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3answers
10k views

Lens with small scratches on the front element - how do they affect IQ?

I am looking to buy a CANON 28mm 1.8 EF lens. I found an offer, significantly discounted, of a lens with small scratches on the front element. The offer is very tempting. Here is a photo posted by ...
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2answers
1k 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 SB-...
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4answers
316 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, ...
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3answers
5k views

Does rotating a photo count as a destructive editing?

I usually rotate all my jpg photos (using Windows Photo Viewer) after removing them from my camera's card. Is this correct? Am I losing quality for rotating them? Should I just leave them as they are ...
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0answers
325 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 ...
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3answers
983 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 ...
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1answer
641 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 ...
4
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1answer
498 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 ...
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1answer
222 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 ...
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2answers
138 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 ...
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1answer
331 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 ...
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1answer
165 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 CMOS-...
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5answers
430 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 ...
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1answer
131 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), ...