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What does "frequency" mean in an image?
I don't understand how frequencies are defined in images/photographs. As far as I understand it now, high frequencies are like sharp things in images, like edges or so, and low frequencies are kind of the opposite?
I also would like to understand…
Jakob Abfalter
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Is GPU or CPU more important for Photoshop and Lightroom?
I'm looking to buy a laptop (for a spare) and I'm not ready to spend the amount I did on my first one. The machine will only be used for photo editing. Should I go for the dedicated graphics card or faster CPU? Has there been greater performance…
Pastel
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How do I capture the milky way?
Can the milky way actually be photographed like this? I know the image is manipulated, and is probably a composite, but how do you capture such contrast in the milky way? Is an equitorially mounted scope required? Any advice or pointers are welcome,…
Octopus
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What makes a photo a good photo?
I don't know if this is a stupid question, this just came across my mind.
Imagine a photo of a dog yawning.
Someone could say that is a very good photo as it is taken just at the right moment, from a perfect angle (eg. level with the dog) and it has…
Aximili
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What is a macro lens?
I've read a few threads on here that mention some elementary descriptions of macro lenses and found some marketing fluff in the box for my Canon about them as well, but being a complete novice I was left a bit confused.
Can someone please provide me…
Shabbyrobe
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How can I take shallow depth of field photos with a point-and-shoot camera?
I have a compact digital camera, and in macro mode I can manage to achieve a blurred background, if the background is far enough away. Can this be done when taking non-macro pictures, and if not, is there a way to simulate it?
When I shoot portraits…
Bernhard Hofmann
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How can I test a new lens to make sure it is operating correctly?
How can I test a new lens to make sure it is operating correctly? I found two similar questions with answers specific to things such as sharpness and focus, but I want to cover any and all possible tests for a new lens. What can I check for or do? …
dpollitt
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4 answers
How can I use my dSLR or mirrorless camera as a webcam?
I'm primarily a stills photographer with some great interchangeable lens camera gear. But now in 2020, I find myself needing a webcam for video conferencing under lockdown. I'm frustrated by the lack of webcam gear available, and the lack of…
inkista
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Why is "The Steerage" hailed "one of the greatest photographs of all time"?
From https://en.wikipedia.org/wiki/The_Steerage:
The Steerage is a photograph taken by Alfred Stieglitz in 1907. It has been hailed as one of the greatest photographs of all time because it captures in a single image both a formative document of…
mik01aj
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Why are there no dark yellows, or bright violets?
In his book The Photographer's Eye, photographer and author Michael Freeman says:
Another consideration is relative brightness. Different hues are perceived as having different light values, with yellow the brightest and violet the darkest. In…
mattdm
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How are SpaceX rocket launches filmed?
In the recent NROL-76 SpaceX launch there are some really spectacular shots of the rocket blasting into the atmosphere and coming back down.
For example, at about the 14:17 mark there's a shot of the rocket stages separating when they are going well…
Calvin's Hobbies
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Should I be shooting in RAW even though I'm a beginner that doesn't know how to retouch photos yet?
I am a beginner, should I still be shooting RAW?
Jon Erickson
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9 answers
What are the major differences between these camera series by Canon?
Here is a shot of the different series of camras that Canon has to offer:
There's several models of Rebel, then there's the 50D, the 5D, and the 1Ds.
Broadly, which one is for whom broadly?
Lazer
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How can I take advantage of fog in my photographs?
Ir's been quite foggy here for the last few days. The quality of light is different. Colour saturation is fairly low. Near the edge of the fog bank the sun looks great, as if there is a huge ND filter in front of it. Anyway, this weekend promises…
Ken
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How does Kelvin for color temperature relate to Kelvin for actual temperature?
Color doesn't have actual temperature. Try putting a blue square and a red square up on your monitor and hold a thermometer against both regions. If you find that there's a difference, you're doing it wrong. You probably know this already.
So why is…
Travis Well
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