Photo by David Coleman
Latest updates
MonsterAdapter LA-FZ1 Review: Autofocus for Nikon AF-D Lenses on Z Cameras
The MonsterAdapter LA-FZ1 puts a focus motor in the adapter, so Nikon’s screw-drive AF and AF-D lenses autofocus on Z cameras again, which the FTZ II can’t do. Here’s how it handled a fisheye and a 24mm, where it falls short, and whether it’s worth $359.
Contax Camera Battery Compatibility Charts
Contax bodies span several eras, from a 6V cell that’s still made to button cells and modern lithiums. Every battery here comes from the camera’s own manual, and I note which bodies still fire when the battery dies.
Nikon Z50 II Back-Button Focus: Turn AE-L/AF-L Into Your Focus Button
The Nikon Z50 II has no AF-ON button, but the AE-L/AF-L button can do the job once you change two settings, not just one. Here are the exact menu paths, what to do about exposure lock and video, and how to undo it.
Nikon Z50 II Image Quality Settings: RAW, JPEG, HEIF and Image Size Explained
The Z50 II ships on JPEG normal, but one step up to JPEG fine at Large size is the best image quality setting for many people. Here’s what each option does, and the simple setup I’d start with.
Nikon Z50 II RAW Files Won’t Open in Lightroom or Photos? What Will Probably Fix It
If your Nikon Z50 II RAW files won’t open on your computer, the cause is nearly always an outdated app or the camera’s default High efficiency compression. Here’s how to tell which, and how to rescue photos you’ve already taken.
How to Reset the Nikon Z50 II: Every Option and When to Use Each
A full factory reset on the Nikon Z50 II can’t be undone, and it isn’t always the right fix. Here’s every reset the camera offers, what each keeps and erases, and how to back up your settings first.
Getting the Most from the Nikon Z50 II’s Burst Modes
The Nikon Z50 II packs several burst speeds plus a Pre-Release Capture mode that saves frames from before you even press the shutter — but it comes with real trade-offs. Here’s which settings to use for action shots, and the limits (JPEG-only, battery drain, buffer caps) worth knowing first.
Yashica Camera Battery Compatibility Charts
Picked up an old Yashica camera and want to get it working? Here are charts for Yashica SLRs, the Electro 35 family, the T-series compacts and the Yashica-Mat TLRs, plus what to do about the Electro 35’s discontinued mercury cell.
Nikon Z50 II Grid Lines Won’t Show? It Takes Two Settings
Adding grid lines to your viewfinder or back screen can be an extremely useful tool for composing your shots, helping with keeping lines level and key elements balanced in the frame. Here’s how to enable them in the Nikon Z50 II and the options that are available.
How to format an SD card in the Nikon Z50 II
I explain why further down this page, but it’s always best practice to format the memory card in the camera that you’re using it in. It’s quick and easy; here’s how to do it on the Z50 II.
Mercury Batteries Are Gone: Four Ways to Keep an Old Meter Working
Mercury button cells like the PX625 haven’t been sold for 30 years, so old film camera meters need a workaround. Here are four replacement options, from cheap silver-oxide spacers to full meter recalibration, plus how to tell which one your camera actually needs.
Leica Camera Battery Compatibility Charts
Which battery does your Leica take? Charts for digital and film Leicas, from the M, SL, Q and S lines to the compacts, Leicaflex and R-series SLRs, all taken from Leica’s own manuals and data sheets. Plus which bodies can share spares, and the few rows that rest on weaker sources.
Which Battery Does Your Minolta Camera Take?
From mercury-cell SRTs to the AAA-powered Maxxum 7000, Minolta cameras take a surprising range of batteries. These charts, pulled from each model’s own manual, sort out exactly which one fits yours.
Which Battery Does Your Mamiya Camera Take?
Not all Mamiya medium-format and TLR cameras need batteries at all to shoot. Several models are mechanical-only, designed to be used with external light meters. Others require a battery for the built-in light meter. And in one case, the shutter won’t fire without a battery.
Sigma Camera Battery Compatibility Charts
Sigma’s camera lineup is small enough that one battery, the BP-51, covers most recent models — the fp, fp L, and all four dp Quattro compacts. This chart lays out exactly which pack each Sigma body takes, plus which models can charge over USB.
The Nikon Zf Battery and Charging, Explained
The Nikon Zf ships without a charger, and it charges the EN-EL15c battery in the body over USB-C instead. Here’s exactly what cable and power source that needs, plus the optional chargers and spare-battery options worth knowing about.
Memory cards
Fujifilm X-S10 Memory Card Recommendations
It’s not easy to know which is the right type of SD card for your camera. There are a lot of confusing codes and marketing hype to cut through. So here are my practical recommendations on good choices for the Fujifilm X-S10.
Nikon Z50 II Memory Card Guide: Why You Need UHS-II
The Z50 II is a video powerhouse, but its high-bitrate 4K modes will choke standard SD cards. Nikon’s manual is confusing, recommending “Speed Class 3” while actually requiring much faster speeds for top performance. This guide cuts through the jargon to tell you exactly which cards work.
Nikon Z50 SD Card Recommendations, Sizes, and Specs Explained
Not sure which SD card the Nikon Z50 needs? Here are practical, tested recommendations covering compatibility, speed class, and card sizes so you can stop researching specs and start shooting.
Fastest SD Cards 2026: Real-World Speed Tests & Rankings
After independent speed tests of the top V90 UHS-II cards, a new leader has emerged. The updated SanDisk Extreme Pro (SDSDXDM) is the first card I’ve tested to genuinely hit the 300 MB/s write speed limit, setting a new benchmark for 2026.”
Choosing an SD Card for the OM-1 and OM-1 Mark II
Faster isn’t always better: the OM-1 and OM-1 Mark II don’t need the priciest V90 cards to hit full burst performance. Here’s the UHS speed class, capacity, and card picks that actually match what these cameras demand.
Formatting an SD Card in the Nikon D3500: Step by Step
Formatting your SD card in the Nikon D3500 wipes it clean and sets up the filesystem the camera needs. It also reduces the risk of corrupted photos and videos. Here’s how to do it.
PGYTech Createmate Review: The Ultimate Travel SD Card Reader & Case
Most memory card readers are boring, utilitarian tools. But the PGYTech Createmate adds a clever twist by combining a high-speed UHS-II reader with a rugged, weather-resistant storage case for your SD and microSD cards. Here is my hands-on review of this clever travel essential.
Ricoh GR IV Memory Card Guide: microSD & Internal Storage
The Ricoh GR IV ditches standard SD cards for the smaller microSD format and adds 53GB of internal storage. Here are my practical recommendations on which memory cards to get for it.
Nikon Z7 III Memory Card Forecast: Getting Ahead of 8K RAW
The Nikon Z7 III hasn’t launched yet, but its expected 8K RAW N-RAW output already tells us what memory cards will be needed to avoid buffer bottlenecks. Here’s a pre-release forecast of CFexpress and SDXC cards to budget for, plus how to dodge the dual-slot backup trap.
How to Choose the Right SD Card for the Sony a6400
Sony’s manual is vague about which SD card the a6400 actually needs. Here’s what the UHS-I, U3 and card-size ratings really mean, plus practical picks that work.
Best SD Cards for the Panasonic Lumix DMC-TS30
The Panasonic Lumix DMC-TS30 doesn’t need a fancy or expensive SD card — here’s exactly what size and speed class actually works, based on Panasonic’s own specs and hands-on testing with the camera.
Sony a1 Memory Card Guide: Dual Slots, CFexpress A & 8K Specs
The Sony a1’s two identical slots each accept CFexpress Type A or SDXC — but mixing formats carelessly can bottleneck your buffer mid-burst. Here’s how the slots actually work and which cards avoid the trap.
Basics.Photography
Zeiss Lens Codes Guide
There is no name more distinguished in optics than Zeiss, but their naming convention is anything but intuitive. Unlike other brands that use tech-jargon, Zeiss names lenses after birds and century-old optical formulas. From the autofocus Batis to the manual-focus Milvus and the legendary T* coating, here is a plain-English guide to understanding exactly what you’re buying when you see that famous blue badge.
At War with the Dust Bunnies: Tips for Changing Lenses on the Go
Dust bunnies, which leave ugly dark spots and marks on your images, are one of the annoyances of digital photography. If you’re changing lenses on the go there are some tricks to minimize them.
Keeping the Wrong Kind of Light Out of the Camera
We expect light to come in the front of the camera. Shooting with the lens cap on doesn’t tend to work so well. But we don’t always expect it to come in the back. Here’s a real-world example of light leak through the viewfinder.
Best Online Photography Classes & Courses
Whether you’re looking to brush up, dive deeper, or learn a new photographic skill, here’s a roundup of some of the best online classes and courses for photographers.
Tokina Camera Lens Codes Guide
Tokina lenses are legendary for their “built-like-a-tank” construction, but their naming system has undergone a massive overhaul recently. If you’re confused by the jump from “AT-X” to “atx-i” or “opera,” you aren’t alone. Here is the definitive guide to every code Tokina uses, including their unique Focus Clutch mechanism and their 2026 mirrorless lineup.
Series Filters: the Three-Piece System Behind Vintage Lenses
Before threaded screw-on filters, lenses used a three-piece slip-on system sized by “series” number. Here’s how Series 7, 8 and 9 filters actually attach, and why you’ll still meet the term on vintage manual-focus lenses.
Sigma Lens Codes Guide
Sigma lens names can be a mouthful of acronyms. Once you know how to read them, however, they are a powerful shorthand for identifying whether a lens is built for full-frame or crop sensors, DSLRs or mirrorless cameras. This guide demystifies the alphabet soup so you can quickly categorize any lens in their massive lineup.
Venus Optics / Laowa Lens Codes
Laowa lenss use various codes in their names to denote compatibility or particular features. Here’s how to make sense of them.
Workflow
How to Auto Stack Images by the Interval Between Capture Time in Lightroom Classic
Lightroom has a built-in feature to automatically stack images by the time interval between their capture time. In the right workflow it can save a lot fo time and tedium.
Adding a Grid Overlay to the Loupe View
The grid loupe overlay is pretty self-explanatory and simple to use, but you do have some control over its appearance.
ImageMagick: Convert JPG to AVIF and WebP on Mac (Commands, Batch Loop, Quality Settings)
Converting a photography archive to AVIF or WebP for the web is straightforward with ImageMagick — but doing it well means controlling encoding speed, stripping metadata, and handling the edge cases where the converted file ends up larger than the original. Here’s the Mac setup that handles all of it automatically.
Lightroom Classic Can Use Embedded Previews for a Faster Workflow
Lightroom Classic can use RAW files’ embedded previews to speed up importing and culling. It’s a big win for workflow speed.
How to Strip Metadata from Photos Using ImageMagick
When you’re already running images through ImageMagick for resizing or conversion, adding metadata stripping to the same pass makes sense. One command, one pass, done. Here’s how to do it — single files, whole folders, and an Automator drop folder that processes images automatically the moment you drag them in.
Photoshop Flattens Your Layers When Converting Color Profiles — Here’s the Fix
Converting a color profile in Photoshop — from Adobe RGB to sRGB for web export, for instance — flattens your layers by default. One checkbox in the dialog prevents it. Here’s where to find it, what the difference is between Convert and Assign Profile, and when Lightroom is the simpler route.
Batch Processing Photo Merge of Bracketed Images in Lightroom Classic
This is a really neat little workflow trick I came across recently that’s already built into Lightroom Classic. It helps speed up things when using the Photo Merge process when shooting exposure-bracketed images to merge into a single HDR image. So it’s especially useful for high-volume exposure bracketing shoots like real estate and architecture, but it works just as well for any other bracketed shoots.
Extracting Embedded JPEGs from RAW Files: Three Tools That Work
Hidden inside every RAW file is a JPEG your camera generated at the moment of capture. Most photographers don’t know it’s there. Getting it out is fast and nondestructive, and there are good reasons to do it — from preserving in-camera film simulations to salvaging files that are too corrupted to open. Here are the tools that make it easy.
Calculators
How Much 4K Video Your Memory Card Can Actually Hold
A 128GB card can hold anywhere from under an hour to 8 hours of 4K footage, depending entirely on your camera’s bitrate. Use the calculator and charts below to work out your exact recording time by card size.
Angle of View, Explained: Calculator, Charts, and Why Diagonal Matters
Enter a focal length to see its angle of view across full-frame, APS-C, and Micro Four Thirds sensors, with charts for quick reference and an explanation of why the diagonal measurement is the one lens makers actually quote.
Memory Card Speed Converter (X-Rating to MB/s)
Memory card marketing is littered with jargon, but the “x-rating” multiplier is one of the most confusing. Here is a simple tool to convert those outdated speed ratings back into a standard MB/s format so you can accurately compare cards.
How Many Megapixels? A Quick Calculator for Photographers
A simple calculator to convert pixel dimensions into megapixels — handy for photographers working out print sizes, checking how much headroom you’ve got for a heavy crop, sizing files for stock agencies, or staying under Lightroom’s 512-megapixel import ceiling.
How Much Will Be in Focus? A Depth of Field Calculator
A practical depth of field calculator for photographers. Punch in your sensor, focal length, aperture, and subject distance to see your near and far limits, total depth of field, and hyperfocal distance. Useful for landscape work, portraits, macro, and group shots where you need to know exactly where the sharpness falls off.
Mbps to MB/s Converter: Camera Bitrates vs. Memory Card Speeds
The difference between a flawless 4K recording and a locked-up camera often comes down to a single capitalized letter. Here is how to quickly translate your camera’s Mbps video bitrate into MB/s memory card speeds.
The Crop Factor Calculator: Find Your True Focal Length
Mount the same lens on a full-frame and an APS-C body and the framing changes, but does your aperture really change too? Use the calculator below to find your true equivalent focal length and depth of field, and see why exposure stays the same.
The Aspect Ratio Calculator: Perfect Crops for Print & Web
You shoot a perfectly framed 3:2 portrait, but the client orders an 8×10 print. If you don’t calculate the aspect ratio and crop it yourself, the lab’s automated software will do it for you — usually right across your subject’s forehead. Here is how to take control of your output dimensions.
