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Tagged Questions

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

learn more… | top users | synonyms (1)

4
votes
2answers
604 views

Why do I get blurry pictures at far distances, but sharp results up close?

I took this picture: https://www.flickr.com/photos/91552641@N06/15828810701/ and if you look at the details (like the trees on the right side) they are all kinds of muddy. I had the same experience ...
0
votes
0answers
55 views

What is the difference between edge detection, Sobel detection, and Canny detection?

What is the difference between edge detection, Sobel detection, and Canny detection
0
votes
2answers
154 views

Dull and grainy photos

I am using a mirrorless Sony nex 3N camera. It has a APS-C sensor and other bells and whistles of an entry level dslr (except the mirror of course) . I upgraded from a point and shoot and expected ...
-2
votes
1answer
85 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?
0
votes
1answer
107 views

When should I consider an image sharp? [duplicate]

Recently I am worried about the functionality of my Pentax K-50, i.e. I am not able anymore to get real sharp images. Thus my question arose, what I should see as "sharp". So I took several pictures ...
0
votes
1answer
104 views

image enhancement to read car plate

A group of thieves entered in my house and robbed a lot of my stuff. They used a car to run away. The following images were obtained from CCV cameras from neighbors. Is it possible to improve those ...
0
votes
1answer
28 views

Aperture of Photography [duplicate]

I am a beginner. Can anyone state what it means if anyone says "The aperture of the photo/pic is not correct."? I donot know what actually aperture means.
1
vote
2answers
97 views

How to preserve image quality when exporting psd file to jpeg?

my psd file is 9900px by 6600px and I want to export it to jpeg for a website. When I try to export it to jpeg with 72ppi and lower down pixel dimensions to about 1000px by 750px, the image comes out ...
0
votes
0answers
48 views

A tool to resize photos based on 'quality' (bluriness, graininess, etc) of original image

As part of my organisation workflow I like to size down images where the quality of the photo is not making the most of the resolution (due to camera shake, low light graininess, or whatever). Is ...
0
votes
1answer
59 views

Will a Fuji Finepix S4800 take much better pictures than my Galaxy S4 phone?

Which Camera will take better pictures? The one in my Samsung Galaxy S4 phone or a Fuji S4800 camera? I know the Fuji has better MP (16 vs 13) and much greater zoom but I am still wondering if I ...
1
vote
1answer
151 views

What colour space does Adobe Lightroom use in the Develop Module?

What colour space does Lightroom use when you load an Adobe RGB or SRGB tiff/jpeg file into the Develop module? The reason I ask is because I was told that the develop module always uses the ProPhoto ...
0
votes
0answers
40 views

Should I buy the Nikon 18mm-300mm / 18-200mm or 55mm-200mm / 55-300mm? [duplicate]

This question could be a duplicate but my point is completely different from it. I have just started to use a Nikon D3300 with the 18mm-55mm kit lens. Now, I want to upgrade to the 18mm-300mm but ...
0
votes
1answer
24 views

How to Choose Light mode while using Mobile Camera?

Which mode is best fit to take pictures at dusk using a mobile camera,will auto mode work fine or something else. For your information: I use a moto-e and Nexus 4 as my camera. and i use the default ...
3
votes
1answer
190 views

RGB colour correction of CCD camera images [closed]

I've developed an application which is able to communicate directly with a CCD camera (unbranded and obscure) and I'm able to capture and store the image from this camera. When the image is first ...
0
votes
2answers
167 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 ...
7
votes
2answers
1k views

Make photos on Facebook nicer?

I upload photos to my Facebook page using the latest Lightroom. I'm wondering if there are some tips or tricks, or maybe hidden options on Facebook that makes the images served to the viewers higher ...
1
vote
5answers
186 views

“10 m resolution” - Expressed as screen resolution (or other way photography noob can understand)?

The X-Sat satellite captures images of Earth "with a 10 m resolution multispectral (three spectral bands in the visible and near infrared spectrum) instrument". What does this mean? Particularly, how ...
0
votes
1answer
131 views

What are the extra features offered by a higher end model camera body?

The role of a lens is pretty clear for a nice sharp image, but how much does the camera body matter? What are the extra features offered by a higher end model? How much difference do they make?
1
vote
2answers
136 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: ...
1
vote
2answers
173 views

How does Rokinon 24mm f/1.4 image quality compare between f/1.4 and stopped-down to f/4?

I have a Rokinon 14mm f/2.8 lens that I use as my go to for dark sky imaging with my full frame camera and it is amazing. However, I just bought a Rokinon 24mm f/1.4 lens for my crop sensor camera so ...
11
votes
2answers
1k views

Does a greater optical zoom range on a lens mean less image quality?

I have read that big optical zooms of let's say 10X do not produce excellent image quality. Is this true even nowadays, as there have been many technological improvements in this area? For example, ...
13
votes
3answers
417 views

What is the Leica look?

What is the Leica look that fans of the company claim is unique to them? What concrete differences are there that are most obvious to a layman?
9
votes
2answers
3k views

How does using a 2x teleconverter with 70-200 f/2.8 affect use?

I recently acquired the Canon EF 70-200mm f/2.8L IS II USM lens and I love it. However the other weekend I went to Heathrow to do some aviation photography. Whilst it is great for aircraft near to ...
0
votes
3answers
166 views

Can you take a picture of a faded docket and see the details again in computer?

Hi I have a very faded docket, where I can still read the details with bare eyes, but when I tried to photocopy and scan it, it just gave me a white docket. My last hope is using a camera. Please tell ...
7
votes
6answers
310 views

If shooting in RAW and processing, why still care about WB?

WB is obviously important for JPGs and I'm not referring to JPGs here. I do know this question is related to two others. Sorry, I'm a newbie here and I don't know how to refer to them, but @Craig ...
8
votes
3answers
1k views

How relevant are the DxOMark scores and tests?

To me the DxOMark sensor rating seems a bit bizarre. They recently rated the sensor of Nikon D3300 to the same score as the Canon 1Dx got which I find unlikely to reflect their performances, and which ...
0
votes
2answers
86 views

5, 8, or 12MP setting best overall for Panasonic Lumix DMC-ZS15, JPEG, 5x7 prints [duplicate]

My Panasonic Lumix DMC-ZS15 P&S (about 2yrs. old, records in JPEG) takes fine pictures for my purposes (at most 5x7 prints). It has 12.1MP, 16x zoom, and a 1/2.3 MOS sensor. I always use the "high ...
0
votes
2answers
96 views

Does a smaller sensor limit your choice of subject matter?

Is there a major difference in terms of what you can photograph with different sizes of sensor? By having a smaller sensor, can you be limited in taking pictures of certain types of subject? If so, ...
1
vote
1answer
225 views

Images from digital camera can't be enlarged [duplicate]

I am unable to import images from my digital camera (Sony Cybershot 8.1 megapixel DSC-W130) as they appear in the camera display. When I connect the memory card using a card reader, the thumbnails ...
0
votes
1answer
242 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
2answers
477 views

You have two rooms to build your photography skills, measuring about 12 x 12 feet and 9 x 8.8 feet. What lens/lenses would you buy and why?

After days of indecision I've decided I'll be buying the Nikon D5100. Now my only issue is what lens/lenses to go for. I think it will be best to give you an idea of what types of photographs I intend ...
0
votes
1answer
276 views

Does pixel size make a difference in image quality? [duplicate]

I am thinking of purchasing the Nikon D3200 its a 24.2MP camera but the pixel size is 14.8 µm² compared to the D3100 which is 14MP and a pixel size of 25.1 µm². Is this something that i should worry ...
8
votes
2answers
287 views

Why are the trees in this long exposure night shot red?

Last night I tried taking some shots of a cloud moving across a very bright moonlit sky: The exposure was taken using: Nikon D60 Stock 18-55mm VR zoom lense No filters Exposure time: 63 seconds ...
-1
votes
2answers
341 views

Why does my point-and-shoot take hazy photos?

My point-and-shoot (Canon SD 1100 IS, bought in 2008) has for the past couple of years (that I've noticed) been taking hazy photos, as if I'm shooting through fog. I cleaned the lens using an air ...
3
votes
2answers
318 views

Does super-sampling produce good results?

The Lumia 1020 has a 41MP sensor in a PHONE. It down-samples the photo to 5 megapixels, improving the photo quality. But would you get a better photo by using a native 5MP sensor of the same size? In ...
0
votes
3answers
200 views

Full frame or not? [duplicate]

I am struggling to decide between the 5D and the 70D as an upgrade to a 600D. I am an amateur photographer achieving pleasing results with my 600 and I have 5 good lenses. The kit (18-135) is an EF-S ...
3
votes
2answers
124 views

5d mark 1 vs 5d mark 2

I never shoot video with my mk2. I only take portraits, no issue with slower shutter speeds etc. Pragmatically, what would be the main disadvantages of downgrading, in terms of output and image ...
1
vote
4answers
198 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
votes
2answers
173 views

Color loss and clarity issues in Canon T2i

I have a cannon t2i. About two years old now. It used to take great Sharp detailed pictures in all modes and long and short lens. Now when shooting at long distance the image comes out blurry or nor ...
0
votes
3answers
331 views

Lack of sharpness / focus in low light

I recently was playing around with my camera (Canon 60D) in a low light situation trying to focus on some subjects across the room. I noticed once getting home and getting the images onto the computer ...
2
votes
3answers
184 views

Can you match a photo to the discrete camera it was taken with, without metadata? [duplicate]

Are there enough digital and/or analog difference in individual cameras/houses/lenses that photos will have fingerprint of sorts? For example discoloration of pixels, distortion from aberrations on ...
2
votes
1answer
131 views

What are the caveats for buying a teleconverter that is of a different brand than the lens?

What are the caveats when choosing a teleconverter brand that is of a different brand than the lens it will be attached to in attempt to maximize image quality? Lets assume the following to make the ...
4
votes
0answers
113 views

Halos on images taken with a Panasonic Lumix DMC-FS35 [closed]

Every image I take with my DMC-FS35 shows a halo around the subject. (See below) This is true in all light conditions with or without flash. INSERT IMAGE HERE
2
votes
3answers
291 views

How many filters can you stack?

The rental store only has 16X (4-stop) ND Filters, and I'd ideally like to get at least 8-10 stops of filtration. How many filters can I stack on top of one another before the image starts to ...
3
votes
1answer
55 views

Adequate PPI for 12' by 5' banner

I'm looking to print a 12' by 5' banner. Got a photo taken with Nikon D600 in RAW format. But because photo needs to be cropped somewhat, after importing it to Illustrator and resizing, the image ends ...
0
votes
3answers
488 views

How can I test whether my camera is working after it was dropped?

Issue : How can I evaluate my cameras performance synthetically? Scenario : Bought a Nikon D3100 an year back. Photos looked good enough. The camera fell, zoom lens effected. But works. Cleaned lens ...
8
votes
5answers
333 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 ...
3
votes
1answer
445 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 ...
8
votes
1answer
1k views

Can a photo app for Android improve image quality?

Is there an app to post-process the photos (taken by phone's camera) to improve their quality ? I was told that IPhone makes better photos because of good (built-in) post-processing software. Is ...
1
vote
3answers
271 views

How much does the sensor affect image quality if shooting in RAW?

Knowing there are different sized sensors and a nearly unlimited combination of lenses with the various cameras, since RAW captures RAW light data, how much does the sensor itself play a role in ...