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29 votes
Accepted

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

I would suggest that it might actually be a sensor fault (or firmware bug). My reason for suspecting this rather than JPEG artefacts or banding is that the surrounding sky has exactly the same ...
thomasrutter's user avatar
  • 13.6k
24 votes

How to make sky more green grey and skin more golden?

You can achieve this using flash, gels, and white balance. Set your WB so that the background (the clouds) has the desired colour tone, this will probably involve a lower WB setting than the one ...
ths's user avatar
  • 7,151
21 votes

How do I shoot birds against the sky to be faithful to their colour?

Well, in order to get good results, you'll have to make the plunge into non-auto settings. I'd recommend Manual mode. The problem you're running into here is that you are pointing your camera at a ...
ElendilTheTall's user avatar
21 votes

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

These look like JPEG compression artifacts, possibly caused by picking a lower-quality setting in the camera settings. On many cameras there's e.g. a Fine JPEG mode and a SuperFine mode, or something ...
twalberg's user avatar
  • 5,138
17 votes

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

I actually wouldn't describe what you're seeing as a halo artifact. It seems to me to be posterization — there just aren't enough tones to smoothly represent the gradient of the sky. It just happens ...
mattdm's user avatar
  • 143k
10 votes

How to make sky more green grey and skin more golden?

The simplest way to achieve this look is to shoot in appropriate weather conditions around sunset. Dark clouds behind the subject with the sun setting or low in the sky under a clear part of the sky ...
David Richerby's user avatar
8 votes

How to make sky more green grey and skin more golden?

In addition to ways to shoot this, I want to talk a little more about how to post-process this in lightroom or photoshop. In this example I exaggerated the blue in the sky and gave the skin a bright ...
caesay's user avatar
  • 216
8 votes

How do I shoot birds against the sky to be faithful to their colour?

Easiest fix Only shoot the bird when the sun is at your back, not behind the bird. Given how redtails circle where I am, I sometimes just wait as I draw a bead and follow them around the circle, to ...
inkista's user avatar
  • 51.4k
6 votes
Accepted

Is it picture noise or did I captured the stars of our galaxy?

It looks like a severely underexposed image with heavy noise reduction applied. Minor differences between "almost black" and "totally black" have caused the patterns you see.
Michael C's user avatar
  • 175k
6 votes

What camera features do I need to take a clear picture of NEOWISE?

Any camera that allows manual control of focus and manual control of exposure should be usable for astrophotography. But both of these are requirements (not just "nice to have"). There is a ...
Tim Campbell's user avatar
  • 3,897
5 votes

What is this filter?

The image of the woman reclining appears to be a composite. The woman and the sky were not taken at the same time. You can see this as the direction of the light, it's color and contrast are ...
Frank's user avatar
  • 674
5 votes

What caused the sky to turn green in this photo?

If you look you'll see that the off-colour parts are at the lower end of the brightness range ( darker ) and their is also evidence of a flare on the right hand side of the image. The combination of ...
StephenG - Help Ukraine's user avatar
5 votes

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

I think what you're seeing is called banding or posterization. This is where smooth, continuous tones are rendered in a stepwise manner because the bit depth (the number of bits used to represent each ...
JenSCDC's user avatar
  • 2,341
4 votes
Accepted

How do I interpret weather forecasting data for landscape photography?

If you mean weather forecasts like this one it can only provide general and not-so-reliable information. It is too vague. 30% cloud coverage means that 30 % of the sky is covered by clouds. What type ...
Crowley's user avatar
  • 1,808
4 votes

Making photos of Milky way

Without more information on what is going wrong it is hard to assist, but some steps below might help. Get away from light sources if possible as on longer exposure this will make the milky way ...
Andrew brough's user avatar
4 votes
Accepted

Can I take clear night sky photographs with my smartphone?

Astrophotography is a much more complex process than you might expect it to be. The stars do put out a lot of light, but it's pretty well diffused by the time it hits Earth. You would need a long ...
Alex's user avatar
  • 1,172
4 votes

Where could you get a straight-on shot of only the sky?

You can do this from any building that sticks up above surrounding buildings and trees. Or, you know, pretty much any boat on the ocean (and many large lakes). You just need a narrow enough field of ...
mattdm's user avatar
  • 143k
4 votes
Accepted

What are these "lights" in the sky in my drone picture?

It's hard to say for sure without some additional information (things such as what are the pixel x pixel dimensions of the example you've posted, what are the exact specifications of the sensor in ...
Michael C's user avatar
  • 175k
3 votes

What is this filter?

Looks like "sunset" to me. You can only use it once every 24 hours though - so only the pros and the lucky tend to wait around for it. Google "Arizona sunset". Some places on this earth just get ...
OnBreak.'s user avatar
  • 20.5k
3 votes

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

Just called Huawei Support - they told me that its a hardware fault and has to be checked in repair center. Got a P10 here with exact same artifacts in the sky.
raZilein's user avatar
3 votes

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

Analysing them with ULead Photoimpact and simply experimenting with the brightness/contrast/gamma, I see some quite unusual artefacts and note new artefacts. Indeed, on your first image there is a ...
www-0av-Com's user avatar
3 votes

How do I shoot birds against the sky to be faithful to their colour?

It's NOT (only) the exposure. This situation calls for more than the correct exposure which you will discover if you are able to bracket your exposures to select the one with the subject optimally ...
Stan's user avatar
  • 5,511
3 votes

median stack mode is blurring my stars

The Earth rotates, which causes the stars to appear to move, which would be expected to cause them to appear blurry when the images are stacked. Consider using a program, such as ...
xiota's user avatar
  • 26.9k
3 votes

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

The effective trick for this is to double the resolution of the photo, add a very small amount of stochastic hue-constrained noise, bring the resolution back to original, and THEN de-noise. There is ...
dwoz's user avatar
  • 131
3 votes

Canon 700D or 70D for a beginner

For your intended purpose there isn't a lot of difference between using a 700D or a 70D (The 80D, on the other hand, provides significant improvement in low light performance and dynamic range which ...
Michael C's user avatar
  • 175k
3 votes
Accepted

What kind of equipment or other technology is necessary to photograph "sprites" (the atmospheric phenomenon)?

Sprites are an atmospheric phenomena associated with lightning during thunderstorms. From Wikipedia: Sprites are colored reddish-orange in their upper regions, with bluish hanging tendrils below, ...
Michael C's user avatar
  • 175k
3 votes

What causes this leather-grain pattern of noise in the sky when I inspect with a sharp mask?

Even when the sky appears uniform to our eyes, it isn't. The index of refraction of air is affected by a number of things (e.g. the shimmering mirages you see over a hot road) - temperature, humidity, ...
twalberg's user avatar
  • 5,138
2 votes
Accepted

Canon 700D or 70D for a beginner

I have the opportunity to buy either a Canon 700D for about 470€ or the Canon 70D for 830€ (both are just the cameras, no lenses included). This would be my first DSLR. There's a gap of 360€ which I ...
KohGeek's user avatar
  • 492
2 votes

Why are my long exposure sky shots out of focus?

Unlike many older manual lenses, especially primes, that have a hard stop at a lens' infinity focus setting, most autofocus lenses do not. Instead they allow for the focus mechanism to be turned past ...
Michael C's user avatar
  • 175k
2 votes

Why are my long exposure sky shots out of focus?

15 second exposure with a 18mm lense with the focus cranked all the way back When you say "cranked all the way back" it sounds like you just turned the focus ring to the far limit. That's not the ...
Caleb's user avatar
  • 31.7k

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