Questions tagged [image-quality]

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

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7
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5answers
2k views

An image with lower resolution is of higher file size while that of a higher resolution is of lower file size. How does that happen?

This image having resolution: 3200x2192 pixels has file sie: 5.86 MB while this one has resolution of 6000x4000 pixels but file is of 4.55 MB. What is happening in both cases? Any help to clear up ...
1
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2answers
77 views

Using a full frame camera in crop mode decreases low light performance?

In the dpreview.com discussion thread, DX mode on the D850, a user states that: Second the smaller the sensor size the lower the signal / noise is. Using the camera [Nikon D850] in dx mode means ...
1
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2answers
69 views

Fear of underexposure despite proper exposure in editing program?

I'm constantly afraid that my images are underexposed for I'm playing a lot with light and shadow and like to shoot at night. Even though in my picture editing program the image seems well exposed ...
0
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3answers
202 views

Why are 48mp images taken with a 4k camcorder very bad?

I bought a 4k ultra HD digital camcorder and took a picture with it. I don't know much about cameras or photography but I expected the picture to be sharp as high-resolution pictures are. But when I ...
2
votes
1answer
98 views

Does the Dropbox app disintegrate photos the same way iCloud does?

On iOS devices, having “ iCloud photos” and “optimize storage” turned on causes photos on the device to be replaced with low quality versions. Is this the same situation with the Dropbox app?
0
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1answer
83 views

Sony A6000 with Sony E 18-200 lens: images unsharp on the left, in particular at zoom — lens damage?

My photos, taken with a Sony A6000 with a Sony E 18–200 mm lens, are unsharp on the left at moderate zoom and unsharp everywhere off-centre in severe zoom. This effect is present with image ...
7
votes
4answers
4k views

Why are my sunsets not turning out well?

I am interested to know why are some of my pictures turning out this way. For example if you take a look at the sunset I took below, clarity and generally image quality is fine around the sun and ...
0
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2answers
97 views

Do I lose information every time I add an adjustment layer to an 8bit image in Photoshop?

A friend told me that one of the disadvantages of working with 8bits images within Photoshop is that every time I add an adjustment layer I lose some data. Is that true? Is there a quantifiable ...
1
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2answers
46 views

How will a coating defect affect my images

I have rented an RB 67 and the 90mm lens it came with seems to have a very visible defect on the coating of the front element. How is this likely to affect my images? And what sort of scenes/lighting ...
0
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3answers
276 views

Getting a clear image for a paper with 7.62 mm hole located 50 m away

I have zero experience in photography, but I was trying to know is it possible to get a clear image for a paper with 7.62 millimeter holes located 50 meters away. This is for a project for shooting ...
0
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2answers
133 views

Blur image with a 1/2“ lens on a 1/3” sensor

When I put my 1/2" lens on my 1/2" sensor, the image is perfect, but when I put the same lens on my 1/3" sensor, everything is very blur, even when I focus at maximum, so I need to put an extension ...
0
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2answers
522 views

Is a 1" (one inch) sensor camera workable for stock or commercial photography?

Is it possible to deliver commercially-acceptable results using a 1-inch sensor size camera (let me suggest Sony RX10M4 / Panasonic FZ1000M2 as an example camera here)? By the commercially-acceptable ...
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2answers
190 views

What would cause just one photo from my phone camera to have large, blotchy magenta areas?

What would cause the pink on this picture? All the pics before and after were normal. No filter, no flash.
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2answers
139 views

Does dropping a computer cause the pictures on it to lose quality? [closed]

After dropping my MacBook, the pictures on it have become pixelated.
2
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1answer
46 views

Does compressing with chroma-subsampling multiple times degrade image quality?

Suppose I am creating a large image files out of smaller ones. The original images (jpeg) already have chroma-subsampling of 4:2:0. If one were to put them together and save again as a jpeg, would ...
2
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2answers
242 views

Is editing metadata of a JPEG destructive to the image?

Is editing metadata of a JPEG destructive to the image? If I edit "File Info" > "Description" in Photoshop, then save.... am I causing the same image degradation as if I edited the image, then re save ...
1
vote
1answer
161 views

How to batch convert old NEF photos to JPEG/HEIF with in-camera processing look?

I have ~9k NEF photos from a Nikon D5000 that are currently taking up ~100GB. It's been 8+ years without me touching them, so I don't see a reason to assume I will ever process and edit them. I'd ...
1
vote
1answer
101 views

What does “frequency” mean in an image? [duplicate]

I saw similar question and several good answers at here What does "frequency" mean in an image? but, I actually couldn't understand about those answers. "Is it right that the higher the ...
0
votes
2answers
324 views

Nikon 24-85mm (non VR) vs. Nikon 28-70mm 3.5-4.5D

I currently own a Nikon 28-70mm 3.5-4.5D. I've enjoyed the lens and found it on eBay for $45 so it was a steal. From what I understand it was a great compact lens in the 90's that was a "kit" lens but ...
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2answers
109 views

Snapseed vs Lightroom PC output quality

All of them has some pluses and minuses. My concern is, if I process the photo in Snapseed in to the final form with tools which Snapseed offer. Will the output quality be great as same as Lightroom ...
2
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2answers
97 views

Sony SEL 18-200mm very blurry at the right part of the photo

I own a Sony a6000 and recently upgraded the kit lens (10-50) for an 18-200mm lens. The problem I face is that at the right part of the photos, mostly on wide angle, the photo is very blurry compared ...
3
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7answers
388 views

Can RAW image files deteriorate over time?

I was at a photographer some time ago, shot some photos of my son and came back to view and select a range of images, some of which I wanted to print, and some of which I wanted and to receive by file ...
1
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2answers
95 views

How to determine which jpeg is closer to the original image and has the most information?

I've got two jpegs of the same photo of different sizes and attributes. How can I tell if one is the original taken by an iPhone4 or if neither is the original, determine which has the most ...
3
votes
2answers
317 views

How do I cope with haze for the photos containing sky and trees at a distance?

I'm always struggling with photos which contain large zones with trees situated far away from the camera. Haze and pollution cause severe changes in colors, which means that the trees lose their ...
-2
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3answers
98 views

Is it normal for photos imported from iPhone 6 to be pixelated when zoomed in fully on “photos” app on Mac?

In "photos" on a macbook, there is an option to zoom in a photo up to 400 percent. Is it normal to see some pixelation when fully zoomed in?
0
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1answer
155 views

Black level correction for images

As I have figured, the main cause for the intensity values in an image to be non-zero even in the absence of light is the dark current which propagates through the photodiodes, providing some charge ...
16
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13answers
6k views

How important is a good quality camera for good photography? [closed]

Don't know if this is already a known thing/wiki/previously asked here, but basically: How important is a good camera for actually making strides in photography/doing well? I've done some photography ...
2
votes
4answers
385 views

Since larger pixels increase depth of field and sensitivity, why don't we have large sensors with a low number of pixels?

If I understood correctly, the DoF (all other parameters fixed) increases with the pixel surface. So to have a high sensitivity together with a deep DoF, why don't we just have big pixels (and thus ...
2
votes
2answers
108 views

Do different microlenses on EOS R / RP affect use with EF lenses?

I have read that EOS RP uses otherwise the same sensor as the 6D Mark II. However, RF mount has a lower flange focal distance than EF mount. Therefore, Canon has adjusted the microlenses in EOS RP to ...
1
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2answers
106 views

Is this the limit of the camera image quality or is the subject out of focus?

I'm using the "macro" mode in the Powershot G9X II. The macro mode is simply a shorter focus range, there is no magnification in place, like in aftermarket macro lenses for DSLR's. I've shot many ...
1
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1answer
79 views

How can I best use two torches (aka flashlights) to take photographs of my artwork indoors?

I have two lights in my room but their light is not enough. So, I count them as ambient light. I don't have enough money to buy something expensive like studio stuff, but I have two torches similar ...
1
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4answers
130 views

How to most accurately print a physical picture?

How could I most accurately print a physical picture, such as a painting I created? I want the colors to be as similar as possible and for even the tiniest micro details to show. Would I use offset ...
1
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2answers
179 views

How to make photos of fruit more interesting? [closed]

What are some ideas to make fruit photos more interesting? camera techniques I could play with? subject matter to include? ect.... Not sure if my tags are correct.
12
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8answers
12k views

Does Wi-Fi affect the quality of images downloaded from the Internet?

Does downloading an image off a website, when Wi-Fi is strong, result in a higher-quality image on your device?
3
votes
4answers
902 views

How do you identify file type/compression in a TIFF file?

From what I understand TIFF is like the .mkv container for photography - it supports a variety of compressed and uncompressed formats. But how would you go about checking if the data within the TIFF ...
0
votes
5answers
1k views

Entry level camera vs phone camera?

I would like to start my photographic journey, just don't know which camera to buy for beginners. I was looking at Canon Canon PowerShot SX540 HS, but I wonder how much of an upgrade is it on ...
1
vote
4answers
1k views

Best storage for photos without compression of photos or videos on server

I am using google drive as of now for storing the pictures. I have pictures which is of 26 mp so google drive is compressing and removing the quality of pictures. Is there any other storage quality ...
2
votes
3answers
181 views

How to get rid of brighter dark areas of the object while taking photo or by editing it later?

I'm having a little hard time taking photos of my pencil drawings. I recently posted a question about noise & blurriness. Here the thing is, my art looks much better on paper but when I take ...
1
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3answers
200 views

Can a DSLR take a better photo (less blurry and less noisy) of artworks than a Point and Shoot Camera (Nikon B500)?

These photos are taken from my Nikon B500 Point and Shoot camera. See the Orange marks here. The area nearby these marks is not well photographed. I guess you might not see much difference but as I ...
4
votes
3answers
351 views

What is causing these stripes in my images?

Please don't mind the edited faces. All over the image are visible white stripes horizontally. What could cause them? The image was taken without a flash on a Canon 5D Mark II. Could this be a sensor ...
0
votes
3answers
148 views

What is the quality or characteristics of photos of different cameras or lenses called?

Given, the fact that every camera has a distinct photo look in its result, is there a technical term that is used for denoting this aspect, which basically denotes the nature of photos a particular ...
6
votes
4answers
251 views

What quality can be expected from a flatbed scanner and will a more expensive one be better?

I've got a small collection of family photos, probably several hundred pictures, including some taken over 100 years ago (although they might be copies of the originals, I don't know). All prints, no ...
-2
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1answer
62 views

Resize image in PS CS6 without losing image quality? [closed]

I have a png logo file but i want to resize it without breaking the image. Can I have any tips ?
4
votes
8answers
5k views

My mentor says to set image to Fine instead of RAW — how is this different from JPG?

So far, I have heard of one reason to have the camera save images as RAW instead of anything else. JPEG is a lossy form of image data and so I always thought it made sense to save the image data as is ...
8
votes
4answers
3k views

Why is Nikon 1.4g better when Nikon 1.8g is sharper?

I am new to photography (just 3 to 4 months of experience) and I am looking to buy a new lens (either 35mm or 50mm, but mostly 35mm because I have already decided Sigma 85mm f/1.4 DG HSM Art Lens for ...
13
votes
4answers
3k views

Can smartphones with the same camera sensor have different image quality?

Xiaomi Mi 9 and Redmi Note 7 Pro have the same camera sensor — Sony IMX586 Exmor RS. Does this mean both smartphone have same image quality output when pictures are taken?
0
votes
1answer
322 views

Panasonic Lumix G 42.5mm F/1.2 vs Panasonic Lumix G 42.5mm f/1.7 ASPH Power O.I.S

How much of a difference these two lenses will make in photo quality and what will be the difference? I am a newbie in photo and I am looking to invest in a nice lens for 4/3 that has max features in ...
-1
votes
3answers
139 views

Is it normal for photos taken on iPhone 5 to have a grainy texture after being transferred to a computer?

The photos taken on iPhone 5 appear grainy after being transported to a computer. Could this be a result of accidental compression?
1
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2answers
160 views

How to reduce blur or haze when shooting long distances? [duplicate]

I am new to photography any i am not sure what is the correct settings when shooting long distance landscapes. The photo that I took is pretty blurry/hazy. Is there any specific settings or equipment ...
2
votes
2answers
1k views

How will tiny scratches on rear element affect image quality?

I have found a rather cheap Mamiya G 50mm f4 lens on ebay that has some tiny scratches on the rear element of the lens. Now, I have done some research on how much such scratches could affect the ...

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