A camera pre shoot checklist takes four minutes and prevents most avoidable footage loss, because most losses are decided before the first frame. The two most expensive habits are leaving the second slot on overflow mode and starting a long recording on a battery that was never fully charged. Neither shows up as an error on the camera; both surface later, when the card is being read.
This checklist is built to be printed and taped inside a case lid: twelve items, four groups, no equipment purchases.
The 12-Point Checklist at a Glance
| # | Check | Pass condition | Failure cost if skipped |
|---|---|---|---|
| 1 | Card formatted in-camera | Card was formatted by this body, not on a computer | Unpredictable write behavior; possibly full erasure |
| 2 | Free capacity | At least 2x your realistic estimate for the session | Mid-shoot card swap at the worst moment |
| 3 | Card age and history | No prior errors, self-locks, or failed writes | Higher odds of dropping files mid-write |
| 4 | Speed class vs. mode | V-rating covers your bitrate with margin | Recording stops after a few seconds |
| 5 | Authenticity | Every new or discounted card passed a capacity test | Silent overwrite once true capacity is exceeded |
| 6 | Batteries | All charged, spares counted, contacts wiped | Interrupted recording and a missing file index |
| 7 | Power path | Enough runtime for the longest planned take, plus margin | Shutdown mid-clip |
| 8 | Date, time, timezone | Correct and consistent across every body | Unsortable files and unreliable sequencing |
| 9 | Timecode mode | Free run or record run, chosen deliberately | Multi-camera sync failures in the edit |
| 10 | Labels and case numbers | Every card labeled and mapped to a numbered slot | A card that cannot be identified after a swap |
| 11 | Dual-card mode | Set to backup for anything unreshootable | A single card failure costs the whole shoot |
| 12 | Offload destination | Drive, space, and cable confirmed before you leave | Files sit on one card for days |
Items 1 to 5: Card State and Capacity
- Item 1. Format in the camera, not on the desktop. Camera bodies build a file system tuned to their own write patterns, and a camera format is almost always a quick format, which rebuilds the file system table and leaves existing blocks untouched. Format on a Windows desktop instead and you may get a full format that genuinely writes over the media. That distinction is the difference between a recoverable card and a wiped one, and the in-camera format vs computer format comparison covers it.
- Item 2. Free capacity. Estimate the shoot in gigabytes and then require double. Burst stills and high-bitrate video consume space faster than most shooters predict, and a card swap is the single most common moment for a card to be dropped, pocketed, or inserted while the camera is still writing.
- Item 3. Card age and history. Any card that has produced an error, a self-lock, or a failed write is retired from critical work, regardless of age. Flash cells wear out through program and erase cycles, so a card rewritten daily for years behaves differently from a new one. The retirement rule and the reasoning behind it belong in the same conversation as routine card care.
- Item 4. Speed class against recording mode. A V30 card guarantees 30 MB/s of sustained write, enough for most 4K at common bitrates but not for high-bitrate 4K, 8K, or RAW video. If the camera aborts a recording after a few seconds, the card is the first suspect, and speed class ratings are worth learning once to avoid a day of confusion.
- Item 5. Authenticity. Counterfeit cards report more capacity than the NAND inside them can hold. Writes eventually pass the true capacity and overwrite earlier files without any error message. Any card bought from a marketplace seller or at an implausible discount goes through a full write-and-read test before it goes in the bag.
Items 6 and 7: Power, the Most Common Recording Killer
Item 6. Batteries. Charge everything, count the spares, and wipe the contacts. A dirty contact behaves exactly like a flat battery and produces the same result: a take that ends before you intended it to.
Item 7. Power path. Confirm runtime for the longest planned take plus a margin. Change batteries during a pause rather than after the low-battery warning, because the percentage on screen is a resting-voltage estimate rather than a countdown. Under load, voltage can sag below the cutoff before the indicator reaches zero. Power loss during recording is the leading cause of the file that recovers at full size and then refuses to play, so power protection is a pre-shoot item rather than a film-bag spare.
Items 8 to 10: Clock, Timecode, and Physical Identity
Item 8. Date, time, and timezone. Set them and keep them consistent across every body. Timestamps are how recovered files get sorted back into sequence, and a camera still set to the factory default is a camera that produces an unsortable pile. The role timestamps play in reconstruction is covered in the breakdown of camera metadata.
Item 9. Timecode mode. Free run keeps a clock running across clips and is what multi-camera work depends on; record run restarts the count with each clip. Choose deliberately. Recovering sync after the fact is far more work than setting the mode once.
Item 10. Labels and case numbers. Every card carries a physical label, and every label maps to a numbered position in the case. This costs a minute and it is the only way to answer “which card was in the second body during the ceremony” a week later, when the answer decides whether an incident is small or total.
Items 11 and 12: Redundancy and the Offload You Have Not Done Yet
Item 11. Dual-card mode. If the camera has two slots, open the menu and confirm the mode rather than assuming. Backup mode writes an identical copy to both cards and is the correct setting for anything that cannot be reshot. Overflow mode simply continues onto the second card when the first fills and protects nothing. For single-slot bodies, use several smaller cards and offload more often, so one incident costs a single card’s worth of work.
Item 12. Offload destination. Before leaving, confirm that the drive, the cable, and the free space exist. The most common form of footage loss is not a hardware failure; it is a shoot that was never copied anywhere for five days. A field backup workflow that works without a laptop is worth setting up once.
Turning This Into a One-Page Field Card
Twelve items fit on a single sheet in three columns. Use check boxes, and keep the wording short enough to read in a doorway: format in camera, 2x capacity free, no prior errors, V-rating matched, tested card, batteries counted, runtime planned, clock set, timecode mode, labeled, backup mode on, offload target confirmed.
Print two copies, one for the case lid and one for the assistant’s bag, and regenerate the sheet whenever the kit changes. For aircraft, the same idea has a different item list, which is why drones get a separate pre-flight storage checklist.
The Two Items People Skip, and What They Cost
The first is dual-card mode. Cameras ship with the second slot on overflow or auto-switch, and the setting is buried. Discovering that the second card was empty when the first one failed is a common story in wedding and event work, and one menu check prevents it.
The second is card retirement. Shooters keep using a card that produced a single error because it still works afterward. It usually does, for a while. The error was a warning about a specific block, and the next sustained write is what turns that warning into a lost shoot.
Neither requires money, only a habit.
Frequently Asked Questions
How long should the pre-shoot checklist take?
Under five minutes once it is memorized, and closer to two on a kit that is set up the same way every time. The items are ordered so card checks happen first while the camera is still in the bag, and timecode and labeling checks happen last, before the card door closes.
Should I format a card that already holds an old shoot?
Only after that shoot exists in two other places. Do not format to make room for a new job while the old files live on that card alone. Once the files are safely offloaded, formatting in-camera is the cleanest starting state, because it removes the previous session’s directory structure.
Is a partially full card riskier than an empty one?
Slightly, yes. Writing into fragmented free space produces split files, and split video files are harder to recover intact than contiguous ones. A card that starts the day empty gives the camera a clean area to write into, which is one reason free capacity sits near the top of the list.
Do I need this checklist if my camera has two card slots?
Yes, and item 11 becomes more important rather than less. Two slots only help when the menu is set to backup mode. A second slot in overflow mode provides extra capacity and no redundancy, which is the most common false sense of security in event photography.