Questions tagged [artifacts]

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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1answer
35 views

Finding Duplicate Pixel/Objects along Image seams

I have a seam of two photos joined by a seam alignment algorithm that on occasion generates duplicated pixels/objects/artifacts on both sides of the seam in the final, aligned photo. The images are ...
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1answer
133 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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1answer
106 views

What would cause these white straight but slightly squiggly lines?

I'm using a Holga 120n camera. I look this photo in my garage with my camera stabilized on a table. I noticed two streaks on the photos after developing it. This is the only photo on the reel with ...
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0answers
50 views

What explains a lens flare “streak” on only one side of light source?

We know than an axial streak can be caused by a smudged lens that has been wiped in one direction. The following image shows both lens flare and a lens "streak." But what could explain the one-sided ...
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2answers
97 views

Are these soft blotches caused by dirt on the sensor?

Can someone tell me if this is dirt on my image sensor? They show up in the same place in other images. This photo is a bit clearer — taken at f22 manual focus at the sky and in the exacly same ...
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3answers
174 views

What caused these large white spots on my developed negatives?

I've shoot some Ilford HP5 + on a Mamiya 645 1000s for the first time. I developed the film with Ilford DD-X (1 + 4), ilford stopbath and fixer on a Paterson tank. After scanning the negatives i ...
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1answer
104 views

When zoomed in, I see red, blue and white pixels. What is the cause of this? [duplicate]

I was experimenting with the bulb mode of my Canon EOS 600D camera. I realised, in the image there were these red, blue and white pixels that are also seen in the screenshot. What is the reason that I ...
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2answers
444 views

What causes this bloom with an old telephoto lens?

I recently got a Görlitz-Meyer Optik Telemegor 250mm F5.5 I am using this telephoto-lens on my Sony a6300 APS-C camera and I like it. The problem I currently have is, that I get a lot of "bloom" in ...
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2answers
150 views

Is it just me, or do smartphone cameras not have any chromatic aberations at all?

To this day I have failed to spot any color artifacts in smartphone photos. Either Nokia N8 phone on a camera or my old Vibe P1 Turbo and even the G7102 I have (Which has glare towards the edges) Is ...
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1answer
87 views

Where does this yellowish shadow artefact come from?

I only notice this yellow shade after creating a HDR (Near the top of the building in the foreground. The image in this question is cropped from the oirginal) I didn't notice before because HDR makes ...
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2answers
90 views

Is it possible to get green and red chromatic aberration?

In one of the hallucinating scenes in a video I have played. The vision is blurry and objects nearer the edges of the screen are green and red Now the usual chromatic aberration patterns are purple/...
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4answers
143 views

Is this long-exposure artifact a sensor defect or light leak?

I am shooting on the Nikon D800. I suspect it has a sensor defect because there is a very uniform artifact, in my images. It looks unlike a light leak as it's always in the same position and has the ...
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2answers
87 views

Why are there weird red spots and blobs on images taken with Yashica Super FX-3?

I have been getting some weird reddish dots and blobs in most of my shots with my old Yashica Super FX-3. They seem to appear with any lens and using film rolls with different ISOs (200/400), and also ...
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3answers
172 views

What is the maze-like pattern in a magnified full-size review of my image?

I'm making an edit in Lightroom. Can anyone tell me what this pattern is? And also how to get rid of it.
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3answers
215 views

What can cause a horizontally flipped ghost image when using a monochrome line-scan camera?

What can cause a horizontally flipped detailed ghost image in a monochrome line scan camera? I am new to photography but I have been seeing horizontal reflections in pictures with bright objects. I ...
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3answers
96 views

Damaged coating tamron 18-200mm?

I just bought a secondhand 18-200 tamron lens but I can't seem to get a fully sharp picture. I know my settings and the picture is "smudged" blurry and seems to have some color artifacts on one side ...
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1answer
117 views

Why does this ugly line pattern appear when I upload my full-sized image to a website or view on mobile?

I have 5760×3840 size JPEG image and when I upload it to a website or try to view on mobile, some kind of line things seem to be going on it. It looks ugly. I tried to resize the image to 1200X800 and ...
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4answers
2k views

How to edit photograph to remove flashes of light / glow / glare?

How can I remove the "glare" on the musicians in the photo below using Photoshop? I do not have the relevant vocabulary to express what this "glare" really should be called. I am not a photographer ...
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1answer
115 views

Why does purple lines appear in CCD?

I know CCD scans the array line by line and over voltage from even a single pixel can wreck the whole line. But why are these wrecked lines colored magenta?
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1answer
200 views

What is this RGB artifact and how did it form?

I took this with my Nikon DSLR about a month ago. Today I was going through the photos and was just about to delete this otherwise unremarkable picture when I noticed a large artifact over the image ...
3
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1answer
91 views

What is this streaky Cyanotype artifact?

So I made some cyanotype prints for the first time. So much fun !!! :D However I seemed to be getting some artifacts in my highlights See around the ship: Original to compare: So after ...
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0answers
81 views

What are the underlying causes of artifacts seen with anamorphic lenses?

When a camera with an anamorphic lens shows some artifacts, they are usually either an oval bokeh (vertical) or a lens-flare steak (horizontal). How much of these artifacts are due to the "anamorphic ...
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3answers
85 views

Possible cause for corrupted images (colored stripe with dots in pictures)?

I've noticed the below artifact/data corruption (colored stripe with dots) in a small handful of my photos, and I'm trying to figure out the cause. Is it the camera (Nikon d90)? Could it be the SD ...
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1answer
540 views

Why is the bottom of this image over-exposed?

I am getting a lighter edge on the bottom of my images... I have googled and can't seem to find anything that points me in the right direction to the cause. Any ideas? Info: Canon 6d OrLit ...
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3answers
325 views

What caused the strange “wave X” lines in the out of focus background area in this photo?

Can anyone explain these wavy lines forming a across in the photo? I used a Nikon AF-S DX 18-140mm 3.5-5.6G ED VR at 140mm, ISO was set to 160. Here is a 1:1 pixel crop:
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2answers
194 views

What is this odd brushstroke-like blur with my Canon EF 100-400mm f/4.5-5.6 L IS II?

I am shooting a lot of low light sports up in the north and I have noticed a lot of back focusing issues that I mostly blamed on myself with a 5D Mark IV and EF 100-400mm f/4.5-5.6 L IS II. But ...
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1answer
97 views

Weird orange artifacts in smartphone image of a white light source [duplicate]

In my work (lab research), I have need to take digital photos of thin transparent gels sitting on and being illuminated by a white light box. When I try to take a digital photo, weird orange bands ...
2
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1answer
76 views

Trying to determine potential causes for boxy (digital?) artifacts

I'm looking at lots of photographs taken in either the late 1990's or early 2000's of book pages printed in the 1700's. In those photographs, I occasionally see the kind of boxy artifacts pictured ...
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2answers
179 views

Mysterious signs or easily explainable artifacts?

These images were taken with an old cheap mobile phone. Could someone please explain what's happening?
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2answers
806 views

What is “veiling glare”? How does it affect my photos, and how can I avoid it?

Someone mentioned that "veiling glare" or "veiling flare" was to blame for reduced contrast in a photo. What does this mean exactly? What causes veiling glare, and how can it be avoided? How does it ...
17
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2answers
3k views

What causes these inconsistent dark bands in some of my photos from an indoor event?

Yesterday I took photos of an event at school. The lighting was poor so I increased the iso to 3200, shutter speed was between 80 and 250 and the aperture between 2.8 and 4.0. Canon EOS500 about 10%...
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2answers
553 views

What is the cause of inclusions in my bokeh?

I was doing a lens review an two of my lenses showed these rather unsightly inclusions in their bokeh. There are two different lenses. EDIT: The third lens I have tested also seems to have this ...
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2answers
198 views

What is causing this ghostly image of a circuit board to appear in images from my webcam?

I am the owner of a Logitech c930e webcam. This morning I turned it on and the images looked like it was a PCB printed on the sensor. So I am here asking to anyone that know something about this ...
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1answer
118 views

What is the cause of these hard transitions after HDR processing?

The images were taken with a Canon EOS 5Ds R. All 3 exposures (JPEG) were merged with easyHDR Pro. We have discovered that the original images have this artifact - in blue skies, hard transitions are ...
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1answer
292 views

Why do strange purple blotches appear in shadows when using a Camera RAW profile other than “Neutral”?

I have recently ran into an issue with my Nikon D3200, it seems I may have toasted my DSLR's sensor - I stupidly shone my phone's flashlight on it when cleaning it recently. These purple patches seem ...
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2answers
137 views

Why is the bloom effect colored?

I've seen many photos where the bloom has a color close to the color of its source. From what I've read, the bloom is caused by an overflowing of the potential well into neighboring sensors. Since ...
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2answers
236 views

How did I get I this flare in my photo with the sun in the frame shot with my phone camera?

What caused the square flare above sun? I've read everything I could get my hands on about flare and different types. I have three diffrent photos of the same flare and I'm just looking for a reason ...
4
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1answer
267 views

Why am I getting color bands at high ISOs?

I have an old Nikon D80 with me. When I shoot with higher ISO, like 800, vertical color bands are produced in the image. Why does it happen and is there any way to eliminate it? Example with high ...
3
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1answer
405 views

Coolpix P900 artifacts

Although I declare myself very satisfied with my Nikon Coolpix P900, I've had in my recent trip in South America numerous pictures blurred by a random artifact, and I would like to know how to avoid ...
2
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1answer
326 views

Why is there blue 1" edges on developed 35mm film?

I have taken some photos on my Minolta XG-1 35mm film camera and 8 of the 24 photos have blue edges. Some have them on just one edge, some on both and some on the other edge. Can anyone tell me what ...
4
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3answers
613 views

Orange and other artifacts in photos from film camera

I've been thinking about getting into film photography for a while, so recently I grabbed the old Olympus OM-1 from work when they were cleaning out the media cupboard, I'm only mentioned in this so ...
4
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3answers
412 views

Unusual horizontalish line on photograph

I just watched a SmarterEveryDay video about a shot of the blood moon over a Saturn 5 rocket model (which is kinda interesting). In that shot he got an unusual horizontal line across the moon ...
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0answers
58 views

Strange fringe pattern on long exposure photo [duplicate]

While compositing a series of long exposure images, I noticed this strange fringe-like pattern getting brighter at each layer blended in "lighten" mode. It features a circle and a cross in the middle ...
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2answers
431 views

What does lens flare from a catadioptric (mirror) lens look like?

Can one get lens flare with a mirror lens? What does it look like?
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1answer
89 views

What is the name of this artifact where lines appear in what should be a smooth gradient? [duplicate]

I'm very new in the world of photography, and I want to know the name of this problem. I know there is a word and I searched but I could not find it. If someone knows the word then please enlighten ...
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1answer
115 views

Arc-Shaped Stripes (Noise?) In Blue Water, Is This Normal? [duplicate]

The water fades in a not-that-smooth way, with some arc-shaped slightly-reddish stripes. As a comparison, the sky has a almost perfectly smooth fade from white to blue. Compressed original image with ...
28
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6answers
7k views

What could be the reason for these block-like artefacts in the blue sky?

I'm using the Huawei P10 with its Leica camera. Recently I noticed very visible large block-like artefacts in the sky. These artefacts are present on some pictures, but not on all, and they are ...
19
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3answers
7k views

What causes these white, squiggly lines in my photos?

I took this self portrait this morning getting out of the shower. There are some white squiggly lines: two near the sink and one on the door handle. What causes them? The picture was taken with a ...
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2answers
414 views

Why a partial eclipse is apparent only as an artifact on a smartphone camera?

Both the front and back cameras of my phone did not "pick up" a partial eclipse, but it did appear as an artifact on the image. If I do not see a crescent on the sun itself, why the crescent shows up ...
4
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2answers
423 views

Why do my pictures with a 100000 ND eclipse/solar filter have purple haze?

I bought a Marumi 100,000 ND filter in anticipation of tomorrow's eclipse, and while testing the filter today I noticed the photos have an uneven but consistent purple haze, but only with the filter. ...