In early 1972, a Kansas State University professor named Nasir Ahmed sent the National Science Foundation a proposal to study a cosine transform built out of Chebyshev polynomials.
A shelf full of older camera bodies brings its own kind of guilt: they still work, they still make good pictures, and they almost never leave the house. Choosing whether to keep shooting a camera like the Fujifilm X-H1 or sell it for something faster affects your wallet, your hit rate, and how much you enjoy the time you spend shooting.
Finding a photograph inside a crowded street or a wide-open landscape is the part of the craft that decides whether you come home with a handful of keepers or a card full of near misses. Settings and gear can be learned in a weekend, while knowing where to point the camera takes years, and few people explain how to practice it.
Two hours of loading sheet film at camp after a long day in the field can make large format feel like a job. How you handle the dull, repetitive parts of photography shapes how much you enjoy the rest of it, and often how the pictures turn out.
Flat window light or a harsh shadow across a face used to mean a reshoot or an evening of dodging and burning. Photoshop's new Relight feature, currently in the beta, lets you reposition, soften, and recolor the light in a finished image with a handful of sliders.
A 24mm lens at f/8 has an opening 3.00 mm across. A 600mm lens at f/8 has one 75 mm across, 25 times wider, and it draws a diffraction pattern on the sky 25 times finer. Both land a blur spot on your sensor exactly 10.7 microns wide.
A wide angle lens pointed at a mountain range can make the peaks look small and far away, which is the opposite of what most people expect when they carry one into big terrain. Getting around that problem by getting close to something in front of you and building the frame back toward the peak is what turns a flat record of a view into an image that pulls the eye through it.
A single speedlight sitting in your camera's hot shoe can produce portrait light that looks like it came from a big window or a softbox, as long as you know where to point it. Most people never get there, because direct flash looks harsh and the usual fix is a pile of domes, diffusers, and brackets that can cost more than the flash itself.
Adobe now meters many of Photoshop's AI tools against a monthly pool of generative credits, so knowing which features draw from that pool directly affects how freely you can edit. Many of the program's most useful time-savers have nothing to do with AI at all, and they sit on panels you already open every day.
Viltrox's AF 16mm f/1.8 is now available for L-mount, bringing a bright ultra-wide with a small info screen on its barrel to Panasonic, Leica, and Sigma bodies at a list price of $580. If you shoot night skies, tight interiors, or dim venues, a fast autofocus 16mm at that price gives you another way to gather light without leaning so hard on ISO.
In 1896, a woman settled into a chair in front of the fireplace in her Washington, D.C. studio, hiked her petticoats above the ankle, crossed her legs like a man, and aimed her own camera at herself. One hand held a lit cigarette. The other cradled a stein of beer.
The Nikon ZR puts RED's raw video format, 32-bit float audio, and a 4-inch screen into a body with no viewfinder, so most of the conversation around it stays on codecs and cinema workflows. If you shoot both stills and video, the more useful question is whether it's a camera you'd pick up on a day when there's nothing to film.
You get to a beach at sunrise, the light finally shows up, and nearly every frame you take is the widest view your lens allows. That habit leaves most of a location unphotographed, and it pins the whole morning on one composition and one patch of sky.
Nikon now has three autofocus f/1.2 primes for its Z mount, a 35mm, a 50mm, and an 85mm, and each one weighs more than a kilogram. If you shoot for yourself instead of for clients, you have to decide whether any of them earns a place in a bag you actually carry every day.
A couple finds your portfolio, likes what they see, fills out your contact form, and then waits to hear whether you're free on their date and what you charge. Every hour of that wait gives them time to open another tab, and most wedding inquiry setups make some kind of wait unavoidable.
At a fashionable beach resort in the 1890s, a posted notice reportedly warned bathers about a brand-new menace with blunt words: "PEOPLE ARE FORBIDDEN TO USE THEIR KODAKS ON THE BEACH." Around the same stretch of years, hand cameras were barred for a time from the Washington Monument.
Laowa's ACRIS 35mm f/2.8 1X Macro APO reaches 1:1 magnification at a focal length that keeps the background, the sky, and the setting in the frame while your subject fills the foreground. Wide angle macro is a small niche, and the lenses built for it often ask you to accept unusual compromises in exchange for that perspective.
A 75mm f/1.4 is a short telephoto that isolates a subject without forcing you to back across the room, and the Thypoch Simera 75mm f/1.4 brings that focal length to Leica M mount in an all-metal body. Because it's a manual focus rangefinder lens, plenty of people will adapt it to mirrorless cameras, which raises fair questions about how much performance survives the trip.
A 600mm prime that weighs about 1 kg and costs $3,698 reads like a list of compromises, and Sony's new 600mm f/6.3 asks you to give up aperture in exchange for a lens you can carry without a second thought. If you shoot birds or wildlife handheld, the gap between a lens you can hold for five minutes and one you can hold all morning decides how many chances you actually get.
Packing for a trip usually turns into a negotiation between the 35mm, the 50mm, and the zoom, and plenty of people settle it by bringing all three. Whether that extra glass earns its place in the bag affects how you shoot, how much you carry, and how many moments you actually catch.
In March 1942, the Acme photo agency sent a photographer to Naval Air Station Alameda for a story about what women should and should not wear around machinery. On March 24, he made a frame of a 20-year-old machine shop worker bent over a lathe, her hair tied back in a polka-dot bandanna.
The way you set up your Lightroom Classic catalog decides how fast you can find a shoot from two years ago and how much work your next backup will be. Most people make that call in their first month with the software, long before they have enough photos to see how it plays out.
The Fstoppers community is brimming with creative vision and talent. Every day, we comb through your work, looking for images to feature as the Photo of the Day or simply to admire your creativity and technical prowess.
Flat, evenly lit landscape files often sit unused on a hard drive, even when the location itself was beautiful. Lightroom's masking tools let you decide where the light falls after the shutter closes, so a dull frame of a field and a hill can be rebuilt into something with real depth and contrast.
You can shoot thousands of frames in a busy wedding season and still struggle to name the few that pushed your work forward. Separating the images that pleased a client from the ones that changed how you shoot is a useful habit, and it takes more honesty than most portfolio reviews ask for.
Sony's a7 V is the general-purpose body in its full frame lineup, yet it now carries a 33-megapixel sensor and uncropped 4K at 60p, which puts pressure on the pricier models above it. If you shoot weddings, events, or a mix of stills and video, the question is how much paid work a base model can carry before you need something more specialized.
On April 3, 2013, one company turned off the lights in more than 2,000 portrait studios in a single day. CPI Corp. ran the Sears Portrait Studios and the PictureMe studios tucked inside Walmart, and when it collapsed it took the mottled blue backdrop, the laser-beam background, and the sheet of wallet-size prints down with it.
Plenty of working portrait shooters still feel a flicker of guilt every time the mode dial leaves M, as if aperture priority or auto ISO were a confession. Choices about mode, file format, and aperture decide how quickly you can work with clients who won't hold still and how much room you have to fix things later.
Real estate photography depends on how many listings agents actually land, so a headline claiming most agents closed nothing in a year hits hard if houses pay your bills. When the numbers behind your client base shift, the way you choose clients, package services, and plan the next few years should shift with them.
A long exposure on a bright, sunny morning sounds like a contradiction, yet it is exactly what turns restless water into smooth glass around breakwaters and sea markers. Hard coastal light forces tougher choices about filters, exposure blending, and whether an image survives in color at all.
Native 85mm f/1.8 lenses from the major camera makers commonly run several hundred dollars, and that cost keeps a dedicated portrait lens out of a lot of starter kits. The TTArtisan AF 85mm f/1.8 Neo lands far below that range with full autofocus on full frame mirrorless bodies, which makes it fair to ask how much gets cut to reach that price.
A batch of packaging board made at a mill on the Wabash River on August 6, 1945 came out radioactive, and the X-ray film stacked against it fogged after roughly two weeks in the box. A physicist at Eastman Kodak worked backward from those spots to a bomb test about 1,000 miles away in the New Mexico desert. He then sat on the finding for four years before publishing it.
Bright midday sun and a pitted concrete wall are poor ingredients for a dark, moody portrait, yet one small gridded flash can turn them into exactly that. Learning to shut out ambient light, shape a single source, and then finish the file with careful retouching gives you a look you can repeat almost anywhere with very little gear.
Butterfly eyes are pure black, and bees are dark, quick, and always hopping between flowers that expose completely differently. Getting crisp, detailed macro shots of subjects like that is hard with daylight alone, and a small flash solves more of the problem than most people expect.
When the colors in a Lightroom edit look gray, muddy, or garish, the first instinct is to open the color mixer and start pushing hue and saturation around. That approach can stack up 20 adjustments that cancel each other out, and the result often looks no better than the raw file you started with.
