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Elements of a photograph that are generally undesirable or have a negative impact. Examples include noise, flare, dead or hot pixels, sensor "spots", reflections inside the camera/lens system, etc.

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28
votes
2answers
5k views

Taken a picture of my monitor while spinning in circles - why is it distorted?

I just found a picture again I took years ago, and I'm wondering what's happened ever since then - I hope this is the right place to ask! I sat on my swivel chair and spun a few times, while taking ...
1
vote
1answer
797 views

Why do I get dark horizontal lines (stripes or bands) in bad lighting with my Fuji X-T1?

Can anyone explain why I get those lines when taking photos in a bad/weak lightning ? I attached some photos.
4
votes
1answer
131 views

How much flare should I expect with a Hoya HMC Filter?

After I did some review comparison (especially this one) I bought a 67mm Hoya HMC filter. Then I took some comparison pictures. Do you think the flare is within the acceptable range?
8
votes
2answers
186 views

Horizontal banding pattern near sun: sensor flare?

Following is a crop from a RAW shot, developed in Lightroom 5.7, into a setting sun from a Sony A77II – ISO 100, f/5, 1/20s, with a TTL fill flash. In the darker regions near the sun a series ...
4
votes
3answers
784 views

Why is there a strange white spot on all of photos from my Zenit-B SLR?

I've taken some photos with my old Zenit-B camera. And I have some strange white spot on all of the photos in the upper right corner. Sometimes it is not too recognizable, but it is everywhere. ...
2
votes
1answer
98 views

Why is there a vertical bar of brighter exposure when photographing lightning?

I recently took pictures of a lightning storm using my camera phone (Samsung Galaxy S3). In several of the shots where I managed to capture lightning, a lighter (brighter?) vertical section sometimes ...
3
votes
6answers
666 views

Is high Chromatic Abberation typical with the Pentax f/1.8 50mm lens?

I recently bought a Pentax K-50 in a set with two lenses (18-55 & 50-200) as well as a 50mm fixed focal length lens. The camera is great but I am extremly disappointed in the lenses. Two out of ...
2
votes
2answers
199 views

Why are there two thin vertical lines through all of my photos?

I have a recently purchased Nikon 5100. Since purchase there is a series of two lines (in the same place) in the frame that show up on the pictures. Any guesses as to what they are and how I can get ...
6
votes
2answers
308 views

What is the cause of this unusual concentric blob defect (taken in below zero conditions)?

My brother took a number of pictures in the alps recently, and a few of these showed defects similar but not identical to the one below. The temperature was -14 C which doesn't seem unreasonably ...
3
votes
2answers
116 views

What are the lines on a screen looked through the camera with varying ISO's?

I have Samsung Galaxy Grand Quattro and I was just experimenting with the camera when I saw lines on the screen. Well this was not the first time I saw them but when I varied the ISO(from Auto to ...
8
votes
3answers
637 views

How can I avoid circular banding artifacts in clear skies when de-noising?

I photograph in RAW, and convert using Darktable. Camera happens to be Nikon D40, 55-200mm lens. For a small number of photos, especially of clear blue skies, I cannot reduce noise without introducing ...
5
votes
2answers
135 views

Time-varying artifacts in long exposure: is it the sensor?

I have just made my first attempt to photograph the International Space Station, and I clearly need to improve my technique. Here are the details: Body: Canon EOS-M (1) Lens: EF-M 55-200mm at 200m, ...
12
votes
6answers
1k views

How can I avoid green flare on my sunrise photos?

I took a series of sunrise photos. Once the sun actually came above the horizon, the brighter the sun became the more apparent and brighter a green flare (glare?) appeared. How can I avoid that? ...
4
votes
3answers
854 views

How can I eliminate white glow/halos surrounding bright objects?

I recently took this picture and was frustrated by the white glow coming from the man's shirt. I realize it's a high contrast scene, but I don't understand the science behind why the shirt appears to ...
3
votes
3answers
497 views

What are these spots in my pictures?

Been getting these bubble type things, never happened before (Kit lens - 18-55|camera d3200
10
votes
1answer
2k views

is it normal to get significant lens flare with a 50mm f/1.8 Canon prime lens?

I've purchased a Canon EF 50mm f/1.8 II. But I'm really disappointed in the results, especially when using it for night photography. :( In my night shots a lot of lens flare appears in my photos. ...
15
votes
4answers
4k views

How can I avoid soft dull “spots” in my pictures?

Recently, I've been doing a lot more photography, particularly with my 100-400mm telephoto and 16-35mm wide. I am skilled enough that I can capture the shot mostly as I want with just the camera gear, ...
1
vote
2answers
93 views

What caused this pattern of lines (moire?) in this picture I scanned from a book?

I have scanned this photo from a book that's printed with color ink, but the picture is a black and white one. When I scanned it with Vuescan as a color photograph I get vertical lines like I think ...
7
votes
3answers
798 views

Why does this satellite image of an airplane in motion show red, green, and blue bands with strange artifacts?

I stumbled upon this satellite image (http://goo.gl/Wv503u) capturing a plane in flight over a city. I'm having a little trouble explaining the color effects caused by the aircraft motion. What I ...
1
vote
1answer
68 views

What could be causing these lines and distortion?

I have a Sony DSC-W830 as a little budget camera for a trip, and I've had it for about a year now. Lately the images have begun to come out with some odd lines and what I could only describe as ...
5
votes
4answers
3k views

Why are there white dots on my night time photo?

Could you please explain why I am getting white semi-transparent dots for night photography with flash on? Original image here.
0
votes
3answers
912 views

What is causing the bright flare on all of my images?

My new camera Canon 6D show this lensflare (raw or jpeg) in all the photos with this lens (Canon 50mm 1.8) or with the Samyang 16mm 2.8 (which I returned for judging what was defective). The lensflare ...
3
votes
1answer
264 views

What could cause this visible artifact which seems to a be a glowing inverse of something outside of the frame overlayed on this photograph?

An acquaintance recently posted an image to FB from his recent trip to the JFK Historic Site asking for an explanation of a visible artifact he states was not visible to the naked eye but was visible ...
0
votes
1answer
67 views

What causes these reddish spotty artifacts?

I'm just experimenting with a new lens. Here is an image I took tonight into the sun. I was trying to capture the rays. I was surprised by the spots that appear on the grass below where the sun is ...
0
votes
1answer
108 views

Why are there small dots on bokeh circles when I zoom in all the way?

I just took a photo with manual focus and blurred as much as I could a light, but instead of getting a uniform colour, there are dots, like dust : Do you know what's causing the darker dots?
7
votes
1answer
687 views

What is the strange wide, bright line across this photograph?

I shot this image on a GoPro camera in time lapse mode. It was at ISO 100, f/3.6, 1/950sec. I also happened to be moving the camera at very high speed during the shot. What is the ligher horizonal bar ...
1
vote
3answers
1k views

What is this black spot in images from my digital camera? [duplicate]

I've bought a used Panasonic Lumix DMC-ZX3, but the images show a dark spot near the center. It's more visible when zoomed in (first picture below), but it's also visible otherwise. It seems to be ...
1
vote
1answer
195 views

Why do I get white images with black vertical stripes?

Apparently my 3 year old Canon EOS 550D is fed up with my style of photography and decided to explore abstract arts instead. All it shows on the LCD and stores on the SD card is this: When I ...
1
vote
1answer
89 views

What are these artifacts I see in print?

I printed one of my photos, and I found it has some artifacts, such as horizontal lines running through the sky. This is most apparent above the pylon (to the right of the train). There's a horizontal ...
7
votes
2answers
487 views

What causes the spots in my IR photos?

Below are images I've shot recently while experiminting with IR photography. The first is an IR image with +2 stops of exposure and a custom white balance based on the bright part of the tag on the ...
5
votes
1answer
449 views

What might cause horizontal artifacts in Lightroom after import?

I have some old photos on the SD card in my Sony A57. After importing into Lightroom, there are horizontal artifacts on most of the imported photos. This is a screen grab of Lightroom displaying one ...
2
votes
1answer
139 views

What are these streaks in negative scans I got back from a lab?

I'm a beginner that's getting back into film photography after many years. I just received scans of my negatives and noticed some of them have streaking while others do not. I feel like this may have ...
3
votes
1answer
2k views

What could cause this white speck in a blue sky?

I took a photo during blue hour, and notice that there are some strange white speck on the blue sky. What is this and why it happens? Initially I thought it was dust, but usually dust will leave black ...
5
votes
1answer
263 views

Why am I am seeing rings (banding) instead of smooth graduation in my sunrise pictures?

Below is a screen capture crop from Potoshop of an unaltered raw photo from my full frame Canon 6D taken with the new Canon 16-35 f4 L at 16mm, ISO 100, f22. I am seeing rings where I am expecting a ...
2
votes
1answer
207 views

What is the cause of black bars on a photo of AMOLED display?

What is the cause of those black bars on the picture? Their orientation changes by moving the camera. The display is of a Samsung Galaxy S3 (i9300), an AMOLED display, set to minimum brightness, ...
1
vote
1answer
115 views

Can I fix the large pink mark which appears on all photos with light background from my Canon Powershot ELPH?

I have a Canon Powershot ELPH 300 HS. See the large pink smudge across the left? Is this a problem I can fix by cleaning the lenses and image sensor, or is this camera/sensor a dud?
3
votes
3answers
441 views

How can one correct intensity flicker due to AC line frequency?

Is there a good image processing method to get rid of the horizontal stripes in the images taken under fluorescent lighting? These stripes (flicker) occur when you take pictures indoors due to the 50 ...
3
votes
1answer
223 views

What causes this weird angled glowing blur around lights on my low light shots?

I've been trying to figure out why this is happening for a few weeks. When I take pictures, usually during evening times when the sun starts to set and the street lights come on, I see this weird ...
2
votes
5answers
5k views

How to remove white spots from a scanned picture?

I have a photo and I scanned it, but the scanned version introduced a lot of white spots on the image. I think the problem is the type of paper of the photo, which is not smooth a bit rough. There's ...
0
votes
1answer
166 views

What is this yellow mark I get on dark photos?

I'm using a Nikon D3200 - new to photography. Whenever I take photos of the night I always get this yellow mark in the same spot. I thought it could be a dirty lens so I cleaned it with a microfiber ...
2
votes
2answers
125 views

Is the weird red and yellow patch near the center of my photo chromatic aberration?

I found this weird red and yellow thing in this shot taken using an EOS Rebel 1200D and the lens that came with it. It looks surprisingly good; how can I control and replicate these effects?
8
votes
3answers
1k views

What causes these green dots in my image?

I just received a 35mm f/1.8 DX lens for my Nikon D50 for Christmas, and took some shots where the lights on the tree were the main source of illumination. Almost all of them exhibit very prominent ...
0
votes
1answer
146 views

what are these strange artifacts on this photo? [duplicate]

what are these strange artifacts on this photo? how to avoid them? photo is shot with canon 1200d 50mm f1.8 4seconds shutter thank you
1
vote
1answer
147 views

How to remove unwanted colors in picture? [duplicate]

I took product photos for my company and am currently editing them. However, some of the white parts of the shirt look a little odd zoomed out. When I zoom in, I see the following: I'd like to ...
1
vote
1answer
326 views

Why are there white outlines around the subject in this photo when zoomed in?

Please give me a solution to this if possible. Image showing white outlines when zoomed. Crop: Zoomed:
0
votes
2answers
110 views

Can a ghostlike image be caused by a overlap with previous frame on an SD card?

Is it possible for a secure digital card to have a ghostlike image on a different frame, ff you shoot digital cards and do not reformat them? Could a ghost image appear from a previous frame number if ...
26
votes
6answers
5k views

Why do photos of digital screens turn out the way they do? [duplicate]

When I take pictures of a screen at school or at my house, they turn out really weirdly. When blown up to 100%, they look fine, but when they get sized down, they look really weird, here is a ...
3
votes
1answer
370 views

Is there a name for artifacts for taking a photo of LCD / LED screens and how to remove or avoid it? [duplicate]

The following is a photo of a game console 3DS, although the 3D is turned off: There is "fish nest" artifacts, and sometimes the lines even curve on some photos. iPhotos on a Mac seems to try to ...
1
vote
3answers
114 views

What could have caused this splotch to appear?

amature photographer here. I recently took some photos of the area nearby where I am staying, and one of them caught my attention when going through them afterwards: Notice that gray splotch at the ...
24
votes
2answers
2k views

What is noise in a digital photograph?

What kinds of effects are present in digital images that are referred to as "noise"? What are the different sources of noise? What causes each type of noise? What are the characteristics of the ...