Questions tagged [image-quality]

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

Filter by
Sorted by
Tagged with
2
votes
1answer
103 views

Digitize and enhance a photo from the early nineties

I have a photo taken in the early nineties featuring someone who sadly is not going to be around for much longer. All I have is the photo, we looked everywhere for the negative but it couldn't be ...
2
votes
2answers
400 views

Why is my photo so low in megabytes?

I took this photo at night with an iso of 100, aperture of 16, shutter speed of 30 seconds in raw. I want to send it to print but when exported to jpeg its only around 8.4 megabytes and the print site ...
1
vote
2answers
594 views

What online tools exist to compare image noise between different sensor sizes?

I am currently thinking about upgrading my Canon SX720 with 1/2.3-inch sensor to a compact camera such as Canon G9X Mark II with 1-inch sensor. Before doing that I want to look at some samples images ...
2
votes
3answers
2k views

The reason for my pale colored / bad contrast film images?

I'm a newbie at film photography and only recently fixed up an old Canon AL-1. My first try at film photography was with a Fuji 35mm iso 200 film. Developed & printed the film at an expensive ...
5
votes
2answers
10k views

Does using an adapter on lenses affect the quality of the image?

The camera I am thinking buying doesn't have much selection of lenses. Only 7 or 6 lenses, but using an adapter on the camera can widen the lens selections. Does using non native lenses have any side ...
0
votes
1answer
434 views

Lens quality impact on sharpness

I have a Nikon D7200 and recently took it on a trip where I shot with both the kit AF-S 18-140 f/3.5-5.6 ED VR lens and the Nikon AF-S 24-70 f/2.8G ED lens. While I consider myself a relatively good/...
3
votes
3answers
293 views

Real world differences in pinhole sized apertures

I'm interested in experimenting with a pinhole camera and am considering the Ilford Obscura or Titan. The focal lengths are slightly different and not of concern for me. What I'm really interested ...
12
votes
6answers
2k views

Does aliasing occur in film photography?

I have observed aliasing with digital photos and videos. While film does not have infinite resolution, it appears that film grain does not have the regularity of a digital sensor, so aliasing may not ...
1
vote
2answers
149 views

Will my photographer be able to sell me better prints than I can get from the 2400×3600 JPEG files I hav? [duplicate]

I just got my senior pictures back and want to print them professionally. They were shot with a Canon EOS Rebel T5 and specs are 2400 x 3600, 240 dpi. My photographer uploaded them to her website and ...
2
votes
3answers
358 views

Calculating cost of Inks

I am working on an app in which I need to estimate the amount of ink used to print something and corresponding cost. I am not sure if this is the right place to ask this question. If not, please point ...
0
votes
3answers
5k views

I open the image it's blurry, I zoom in it's sharp either in photo viewer or photoshop

All images I open in photoshop or just in a windows photo viewer look blurry when zoomed out and clear when zoomed in ( honestly I open the image and it's blurry, I zoom in it's sharp). Whats going on?...
2
votes
3answers
1k views

Would stacking thinner ND filters perform as well as one greater ND filter?

If I stacked a Vivitar ND8 and ND2 filter, would they function as well as an ND16? Would this work for solar photography, or would a piece of welding glass be better? Edit: I also have an ND4 if that ...
1
vote
3answers
741 views

How can I best determine if an image is in focus when reviewing on my DSLR's LCD screen?

I currently use a Nikon D200, admittedly an old camera. With that camera, if I want to check image quality, I use the magnify function and the thumb wheel. This allows me to zoom in on the image to a ...
9
votes
7answers
746 views

More detail close up at 50mm than further back with at 85mm?

In terms of quality of picture and overall detail of subject (e.g. the face of a child), would it be better to stand closer to shoot at 50mm or stand back at 85mm (assuming the quality of the lens was ...
0
votes
1answer
2k views

Taking a passport photo with DSLR Canon 1200D [duplicate]

New to this community. I have had a DSLR for a few years now so familiar with a few settings. I tried and failed to take a passport photo . The main issue I am facing is getting shadows around the ...
3
votes
6answers
12k views

Is there an IQ gain from Canon's 18-135 to 24-105L?

Just got a Canon 40D body, and was about to get Canon's 24-105L lens. I hear people raving about the lens, and it all made sense until I saw a Cameralabs' review of the lens. So don’t buy the EF 24-...
58
votes
4answers
75k views

What is moiré? How can we avoid it?

What is the image defect called "moiré"? What causes it, and how can we avoid or reduce it? Is it related to "false color"?
1
vote
1answer
87 views

What's the cause of a small area of an image affected by an artefact?

This presents itself as a lighter area appearing to be overlaid on the image. 1. It's only with one lens, Nikon 18-70. I have four other lenses and it does not occur with any of these. (18-55, 55-200, ...
1
vote
4answers
2k views

Is there any difference between Nikon's current DX and FX 35mm f1/.8 primes other than the image circle and the ED elements?

For some Nikon DSLR lenses, like 35mm primes, Nikon has two offers: AF-S DX NIKKOR 35mm F1.8G ($200 USD) and AF-S NIKKOR 35mm f/1.8G ED ($530 USD) From my understanding, the lenses differ for only ...
5
votes
3answers
8k 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 ...
0
votes
2answers
507 views

What of those EXIF values tell me more about my image's quality?

I have some images of which some look blurry, and the others look non-blurry. I'm trying to analyze the EXIF data of such images in order to determine why some images look blurry and why others don't....
1
vote
4answers
974 views

Does sensor size always matter in all situations?

I recently bought a Canon SX720 camera which has the sensor size 1/2.3". It's probably the smallest sensor size. Some good camera smartphones such as Apple's 7 Plus has got 1/3" sensor. Does that mean ...
3
votes
4answers
17k views

Does converting RAW files to TIFF lose image quality?

Before I found out about Camera Raw, I used to convert my photos from RAW to TIFF, using the XNVIEW convertor, downloaded from the Internet. My question is whether I lost image quality or anything ...
8
votes
5answers
2k views

How can I detect upscaled photos?

I have a collection of JPEG photos, each 500 to 600 pixels on the longest side. How can I detect which ones have been algorithmically enlarged from a substantially smaller photo? An online ...
7
votes
3answers
2k views

Qualitywise, is there any downside to overexposing an image (within the dynamic range of the camera)?

If i underexpose an image and have to crank up the exposure in post, this will also amplify the noise, resulting in a lower quality image. In this case, it would've been better to expose correctly ...
5
votes
2answers
4k views

Is it possible to combine multiple cameras for improved detail?

I'm a novice to photography and I'm wondering if its possible to combine multiple cameras to get a greater level of precision? I'm thinking that if you capture more light you should be able to ...
45
votes
11answers
6k views

Should I keep Image Stabilization (IS) off when I do not actually need it?

I own a Canon 7D and a EF-S 15-85 IS lens and I keep the image stabilization turned on all the time. Recently, an experienced photographer told me that this is a huge mistake because it reduces image ...
-2
votes
2answers
246 views

Can I produce this kind of image with my canon 550d with 50mm lens

see this image, how splendid this is, its colors, sharpness all good. My question is can I get same result with my canon 550d with 50 mm lens or should I upgrade my camera.
0
votes
4answers
9k views

will i lose data/quality converting my raw files to jpeg on my pc? [duplicate]

will converting raw files to jpeg be the same as taking a jpeg photo to begin with? or will I keep my raw quality converting it to jpeg post shoot?
0
votes
3answers
6k views

How do I find out what camera was used to take this photo?

I want a way to know what camera produced this beautiful photo. I shot a photo in the same place with my Nikon D3200, but it was not close to the quality of the other shots. I believe that could be ...
0
votes
1answer
110 views

Why is the price between these two lens differ so much? [duplicate]

I am a beginner in photography and trying to understand about camera lenses. This morning I came across Mike Matas' video which was made using this thousand dollars Canon 50mm. I also have a 50mm ...
0
votes
1answer
1k views

Why do my images look fine in Lightroom itself but poor quality when I export them?

I'm editing my night shots in Lightroom and use Google Nik Collection Dfine2 to reduce the noise.. Noise reducing in Dfine is the last item in my workflow, and when I export image .jpg it has poor ...
2
votes
1answer
248 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
votes
3answers
401 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 ...
0
votes
2answers
5k 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!
1
vote
3answers
184 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
votes
3answers
702 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
votes
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 ...
0
votes
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
votes
5answers
4k 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?
1
vote
1answer
2k 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
votes
1answer
5k 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. ...
1
vote
5answers
352 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 ...
1
vote
3answers
17k 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 ...
1
vote
5answers
1k 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 ...
-1
votes
1answer
251 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 ...
3
votes
2answers
1k 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
votes
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
votes
1answer
113 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
votes
3answers
2k 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 ...

1 2 3
4
5
9