Depth of field calculator with hyperfocal
by Piotr
Enter sensor, focal length, aperture and distance to get near and far limits plus the hyperfocal distance. Worked examples and what circle of confusion does.
Piotrography
Piotr's Photography Blog
Depth of field explained with computed tables
by Piotr
The sharp zone around your focus point, measured: computed tables for three lenses at two distances, a calculator, and the full-frame myth checked by math.
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Camera settings for northern lights, computed
by Piotr
A settings table for faint and dancing aurora. Then the longest shutter your lens allows, phone night modes from Apple and Samsung, and the Kp scale decoded.
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Sunny 16 rule - a computed chart and a test
by Piotr
Set f/16 and 1/ISO in full sun. The chart for six kinds of light, the math behind it, and where the rule disagrees with the published exposure tables.
Aperture priority, shutter priority or manual
by Konstantin Voronov
The P, A, S and M modes differ only in who sets the shutter speed and aperture. Which mode suits which subject, plus exposure compensation and Auto ISO in each.
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APS-C vs full frame in 2026 - which to buy
by Konstantin Voronov
The same lens frames differently on an APS-C body and a full-frame body. Here is the crop factor math, photo comparisons and a verdict on which format to buy.
Camera sensor sizes, phone to medium format
by Editorial staff
What do full frame, APS-C, Four Thirds and 1-inch actually measure? A table of real sensor sizes, a to-scale chart and the crop factor of every common format.
The exposure triangle explained
by Konstantin Voronov
Shutter speed, aperture and ISO decide how bright a photo is and what else it shows: motion, background blur and noise. How the three trade off in stops.
Metering modes and the histogram explained
by Konstantin Voronov
Your camera meter assumes the scene is mid-gray. Which metering mode to use when it is not, how to read the histogram, and the tools that flag blown highlights.
Mirrorless vs DSLR in 2026
by Konstantin Voronov
A mirrorless camera drops the reflex mirror and shows the image straight from the sensor. What that changes in practice, and why new DSLR bodies have stopped.
What is aperture? F-stops explained
by Editorial staff
The opening inside the lens controls brightness, background blur and sharpness at once. A full f-stop chart, what f/1.8 or f/16 means and settings by genre.
What is ISO in photography?
by Konstantin Voronov
Sensitivity is the third exposure setting and the simplest: it changes only brightness and noise. An ISO chart, values for each kind of light and Auto ISO.
What is shutter speed in photography?
by Konstantin Voronov
How long the shutter stays open decides brightness and motion, frozen or blurred. A chart of shutter speeds, handheld limits by focal length and a tripod guide.
Camera lens filter types and how to choose
by Georgy Politsarnov
Lens filters confuse beginners more than any other accessory. Here are the filters digital cameras no longer need, the four they still need and how to pick one.
Do you need a UV filter? When to use one
by Konstantin Voronov
Protective and UV filters are frequently recommended with a new camera or lens. When does a digital camera actually need one, and when does it hurt the image?
What is an ND filter and how to use one
by Konstantin Voronov
An ND filter cuts the light entering the lens, so you can use long shutter speeds or a wide aperture in bright sun. ND8 to ND1000, variable NDs, step by step.
Fujifilm Instax Link Wide: a portable smartphone printer
by Georgy Politsarnov
The Fujifilm Instax Link Wide is a portable printer ready to print pictures via Bluetooth from a smartphone or brand system cameras such as the Fujifilm X-S10. Instax Wide branded paper is used for printing. The company focuses on portability and speed. It takes 12 seconds to transfer and start printing, but there is information …
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Epson SureColor SC-P700 Photo Printer Test
by Georgy Politsarnov
Epson SureColor SC-P700 Feature Overview We are used to entrusting the most valuable things – from bank cards to photographs – to digital gadgets. Cloud storage and large disks, bright modern high-resolution screens, social networks – this is the comfort zone of a modern person. And yet there are pleasant exceptions. Today we will talk …
8 best mirrorless cameras under $1,000 (2026)
by Piotr
The 2021 list is gone: every pick was discontinued or priced out. Eight current cameras under $1,000, a computed sensor table and a short buying guide.
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New Life for Old Lenses on the Nikon Z System
by Konstantin Voronov
The history of photography and the evolution of photographic equipment goes back almost 200 years. During this time, many interesting creative tools were released, some of which can still be used today. I am writing primarily about lenses. It is the lens that forms the image on the sensor of a digital camera. And the …
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Sony ECM-B1M digital microphone test
by Piotr
Sony ECM-B1M: Say No to Noise It would seem that on-camera microphones are more than a dozen years old, and external recorders have long taken root in serious video production. But both solutions have their drawbacks. Due to the external cable, the on-camera microphone can collect noise and interference. Even if the shielding of the …
New Manfrotto Chroma Key FX Chroma Key Backgrounds
by Piotr
Manfrotto Chroma Key FX Backgrounds are versatile portable background kits for the demanding and active video content creator. Chroma key technology, previously used primarily in television and filming, has significantly expanded its scope of application. This is not only the creation of exciting scenes with special effects but also budget optimization due to the ability …
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What does a polarizing filter do? A CPL guide
by Konstantin Voronov
Glare on water, reflections in a shop window, a pale summer sky. A polarizing filter fixes all three in camera. Here is how it works and how to use one well.
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Profoto A10 Test: The Most Versatile Pulse Light
by Georgy Politsarnov
Today we are testing the new Profoto A10 flash, which is the continuation of the A1 and A1x range. At first glance, this is an ordinary flash, but if you take a closer look… Profoto A10 is adapted to work with various, including studio attachments and synchronizers, which can work both as a separate source …
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Formatting an SD card
by Piotr
An SD card holds a lot of data in your camera. To keep your SD card secure and make sure that your camera is ready before your next photography shoot, you might want to format the SD card before each use. This article covers the need to format an SD card and the various ways …