The Library

Field notes from the craft of high-definition video

Long-form essays, hands-on camera reviews, codec dissections, and imaging-craft notes — written for shooters who care about what happens between the lens and the file.

Read the latest Browse categories

Featured Essay

The cover feature

Codecs 15 min read

Why HDV still matters: a working defense of the 25 Mbps interlaced format

It was declared obsolete before it ever really arrived. Two decades on, HDV's 1440×1080 MPEG-2 transport stream still teaches lessons about bit budget, motion estimation, and the human eye's tolerance for compression that no modern codec can hand you as cheaply. We pulled the bitstream apart, frame by frame, and asked whether the format's reputation matches its reality.

By Maren Holst March 14, 2025

Recent dispatches

From the workbench

Field reports, lab tests, and quiet observations from a community of shooters still paying attention to the medium.

Camera Review

Sony HVR-Z1U, twenty years on: a love letter to the workhorse

It is heavier than anything in your kit bag right now, and its LCD folds like a paperback. We took a refurbished Z1U to three shoots and asked whether the camera that defined a generation still earns a place in 2025.

Maren H. · 12 min Read

Techniques

Pulling focus by eye: training the muscle memory modern autofocus forgot

Manual focus rings are heavier, slower, and unforgiving. They are also the only thing standing between you and a missed rack at the wrong moment. A practical guide to rebuilding the technique autofocus made redundant.

Theo K. · 9 min Read

Codecs

Long-GOP vs. intra-frame: when the bit budget actually matters

The marketing answer is simple: intra is always better. The working answer is more interesting. We export the same shot four ways and measure the cost of compression across motion, grading, and editorial flexibility.

Iris D. · 18 min Read

Imaging Craft

Latitude is a budget: the math behind exposing for the highlights

Your sensor gives you roughly ten usable stops. Spend them where they matter. A walkthrough of how we plan exposure for documentary, narrative, and the kind of jobs where the light is going to do something unpredictable.

Soren L. · 11 min Read

Workflow

Archiving HDV tape in 2025: a practical guide to the dying format

The heads are wearing out, the decks are getting harder to find, and your master tapes are getting older every season. A no-nonsense workflow for digitizing HDV to a long-term file format before the hardware disappears.

Yuki M. · 14 min Read

Optics

Why vintage glass still wins on modern HD sensors

Sharpness charts do not tell you what a lens is going to feel like. We paired five pre-1990 primes with a contemporary HD body and spent a month shooting nothing but faces. The results surprised us.

Petra A. · 8 min Read

Index

Browse by topic

Six threads we keep coming back to. Pick one and follow it as far down as it goes.

A letter every other Friday

A quiet newsletter for people who still think in frames

No roundups, no hot takes. One short note from the workbench every other Friday — a paragraph about something we learned, a link to a piece we are proud of, and the occasional recommendation. Easy to leave when the time comes.

Subscribe by email Read the archive