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Build your culling criteria: a worked example

Osmel Contreras · Founder, Kepla · August 12, 2026 · 9 min read
A woman in a red dress seated on rocks by the sea, looking away, a near duplicate frame
Culling & AI

Most photographers already have culling criteria. They are just not written down, so they move: stricter on a Monday morning, softer at midnight in October. One page fixes that. Here is how to build that page, layer by layer, with a full worked example you can copy and adapt to your own work in an afternoon.

01 · THE DRIFT

Why two galleries from the same photographer look different

You pick a January gallery carefully. You are fresh, you have three days, and you look at every frame twice. You pick an October gallery at eleven at night with two more shoots waiting, and you are generous, because being generous is faster than deciding.

Both galleries go out under your name. They do not look like the same photographer's work. The shooting was consistent, the standard was not.

This is not a discipline problem. Judgment made from memory shifts with fatigue, with the order you happen to view frames in, and with how much of the shoot you have already seen. Picking is a real skill with its own failure modes, which we go into in why culling is a skill, not a chore. The fix is not trying harder. The fix is moving the standard out of your head and onto a page, so that the tired version of you is applying the same test as the rested version.

It is also worth the time. A UK survey of more than 300 wedding photographers, reported by PetaPixel, put culling at 11 percent of working time and editing at 55 percent. That was 2020, before the current crop of tools, but it tells you the stage is large enough to be worth a page of writing.

02 · THE SHAPE

What a criteria set actually is

It is one page. Not a style guide, not a shot list, not a manifesto about your artistic values. It is a short list of tests you can apply to a single frame in about two seconds, arranged in three layers.

One rule governs the whole page: write tests, not adjectives. "Sharp enough" is not a criterion, it is a feeling with a word attached. "At 100 percent, the eye nearest the camera holds detail in the lashes" is a criterion, because two people can apply it and agree. If you cannot check a line in two seconds at normal viewing size, rewrite it or cut it.

Keep the whole thing under one screen. A page you will not reread is the same as no page.

03 · LAYER ONE

The floor: what any frame has to clear

Start here because it is the easy half, and because it is the half you can hand to software. Write four to six lines, each one a pass or fail.

Be specific about focus rather than describing it. Name the thing that has to be sharp, name the viewing size, and name the exception. Do the same for eyes, for motion blur, for exposure headroom, and for framing errors like a cut hand at the edge. Anything you find yourself arguing with belongs in layer two instead.

The reason to write this layer even though it feels obvious: it is the layer machines now handle. Adobe's Assisted Culling in Lightroom Classic, labeled Early Access on that page, scores subject focus, eye focus and whether eyes are open, and can set aside exposure problems, misfires, and documents and receipts. Dedicated tools have done versions of this for years, and we cover what the detection actually sees in how blur and blink detection really work.

If your floor is written as tests, you can configure a tool to approximate it and then check its work against your own words rather than against a vague sense that something looks off. If it is written as adjectives, you cannot.

04 · LAYER TWO

The frame: choosing between near identical shots

This is the layer that makes a gallery feel like you, and it is the layer you disagree with yourself about most, because it is a ranking problem rather than a pass or fail one.

So write it as a ranking. List your tie-breakers in priority order and commit to the order, not just the list. Almost everyone's list contains expression, sharpness, hands, background and timing. What separates two photographers is which one wins when they conflict, and if you never write the order down you will resolve it differently at eight in the evening than you did at ten in the morning.

Most photographers, once they actually look at their own delivered work, find they rank expression above technical perfection, which is the argument in why your best photo is rarely your sharpest. Write that down if it is true for you. Write the opposite down if it is not.

Add one arbitrary rule for genuine ties: keep the earlier frame, or keep the wider one. It sounds unserious. It saves you the twenty seconds you would otherwise spend on a choice that has no consequence, and across a wedding those twenty seconds happen a few hundred times.

05 · LAYER THREE

A gallery can be full of good individual photos and still be wrong: forty frames of the first dance and none of the room, or a portrait session where nine of the twelve delivered images are the same pose.

So the last layer is about balance and count. It answers a small set of questions in advance, once, so you are not answering them per gallery at midnight.

Question the page answersExample answer for a full wedding day
Roughly how many photos are delivered500 to 700 for eight hours of coverage
What must be covered, whatever else happensVenue exterior, both preparations, ceremony wide and tight, every family group on the list, all speeches, first dance, one honest late-night frame
Cap on any single moment or setupNo more than six frames of one setup unless the action changes
Balance of detail to peopleNo more than one in six frames is a detail with no person in it

Typical ranges help you sanity check your own numbers: a full wedding day is commonly 2,000 to 4,000 RAW frames captured and 400 to 800 images delivered. If your page says 1,400 for eight hours, that is a decision you should make deliberately rather than by accident, and how many wedding photos to deliver works through the tradeoff.

06 · WORKED EXAMPLE

A worked example you can copy

Here is a complete criteria page for a full-day wedding photographer. It is deliberately opinionated, because a page that tries to suit everyone decides nothing. Copy it, then change every number and every ranking that is not true of your work.

Section 1. The floor: a frame must pass all five

  1. At 100 percent, the eye nearest the camera holds detail in the lashes. Exception: intentional motion frames, of which I keep at most three per event.
  2. Both eyes of the primary subject are open, or clearly closed on purpose, for example a kiss or a laugh with the head back.
  3. No blown highlight on skin that cannot be pulled back in one pass.
  4. No limb or head cut at a joint or at the crown by the frame edge.
  5. No stranger's face in sharp focus in the foreground of a frame that is meant to be about the couple.

Section 2. One frame per moment, in this order

  1. Expression of the person the photo is about.
  2. Expression of anyone else in focus in the frame.
  3. Hands: not mid-gesture in a way that reads as a claw.
  4. Background: nothing growing out of a head, no exit sign, no phone screen.
  5. Sharpness, if the four tests above are equal.
  6. Genuine tie: keep the earlier frame.

Section 3. Gallery shape

500 to 700 images for eight hours. Every family group on the shot list appears at least once with all eyes open, and that rule beats everything above it. Maximum six frames from any one setup unless the action changes. Maximum one in six frames is a detail with no person in it. At least ten frames that show the room, not the people, so they remember where they were.

Section 4. Exceptions I allow myself

The moment beats the floor: if a frame is the only record of something that mattered, it goes in even if it fails section 1, and I note why. A photo the client specifically asked for goes in even if I do not love it. A frame that only works as the left half of a spread goes in if the album is part of the package.

To adapt this: a newborn session swaps the family group rule for a caregiver and safety rule and drops the cap on setups, since the setups are the session. Corporate headshots collapse layer three to a fixed number per person. Sports and events push the ranking so that peak action outranks expression, which flips the whole page. The point is that the structure survives the change of genre, and only the lines inside it move.

07 · CALIBRATION

Test the page against work you already delivered

A criteria page written in the abstract will be wrong, and you will find out on a live gallery, which is the expensive way to find out. Test it instead against a shoot you have already sent.

Take a gallery from six months ago that you were happy with. Open the full take, not the delivered set, and apply the page as written. Then compare the two selections and count the disagreements. Each one falls into exactly three buckets.

  1. The rule is wrong. The page rejects a frame you are certain about. Change the rule, and be honest that you are changing it because of the photo, not the other way around.
  2. The rule is missing. Past you applied a standard that is not on the page at all. This is the most valuable bucket. Write the missing line.
  3. It is an exception. A real one, once. If the same exception appears three times in one gallery, it is not an exception, it is a rule you have not admitted to.

Run this on two galleries and the page usually stabilizes. Run it again at the end of the season, because your work moves and a page written for the photographer you were two years ago will quietly hold you there. Consistency across a body of work is its own skill, which is the subject of culling for a cohesive portfolio.

08 · IN PRACTICE

Where the page lives once it exists

A criteria page that lives in a note app you never open has no effect. Put a copy in your folder template so it is next to the RAWs, and pin it wherever you actually make the picks.

It also becomes the thing you hand to anyone else who touches the take. Most second shooter selections are not bad, they are blind, and the fix is the page rather than more feedback. That handover has its own considerations, covered in second shooter culling standards. The same page is what you use to set up whatever software makes your first pass, and it gives you something concrete to test that software against on a shoot you have already picked by hand.

One thing your page should never do is send a frame to a bin. A photo that fails section 1 is simply not in the gallery, and it stays in the folder with everything else, which matters more often than people expect: clients ask for the frame you passed over, and albums need the wide shot you did not pick. What to do with the rest of the take is covered in what to do with the photos you do not pick.

Kepla is being built to work this way: it picks a shortlist against criteria like these and leaves every original exactly where it is, so nothing you did not pick is ever out of reach. The picking app for iPhone, iPad and Mac is still in development. The booking page is live and free today.

09 · COMMON QUESTIONS

FAQ

How many culling criteria should I have?

Between eight and fifteen lines in total, across all three layers. Fewer than eight and the page is not saying anything specific enough to change a decision. More than fifteen and you will stop reading it, which puts you back where you started. If your list keeps growing, most of the new lines are usually special cases of a rule you already wrote.

Should my criteria be different for weddings and portraits?

The structure stays the same and the contents change. The floor is close to identical across genres because focus and eyes behave the same way. The tie-break ranking and the gallery shape are genre specific: a wedding needs coverage rules and caps per setup, a headshot session needs a fixed number per person, and sports usually ranks peak action above expression. Keep one page per genre you shoot regularly.

Can AI culling software follow my written criteria?

Partly. Current tools are good at the floor: focus, eye focus, whether eyes are open, obvious exposure failures, and grouping near identical frames. They cannot apply your ranking of expression against sharpness, and they cannot hold your gallery shape rules about coverage and balance. Treat the software as the thing that enforces layer one, and keep layers two and three for yourself.

What do I do when I disagree with my own criteria halfway through a gallery?

Finish the gallery under the page as written, and keep a short list of every disagreement as you go. Change the page afterwards, not during. Editing the rules mid-pass is exactly the drift you wrote the page to prevent, and the list you collect is the most useful input you will get for the next revision.

How often should I update my culling criteria?

Once a season is enough for most photographers, plus any time you change something structural: a new camera with different autofocus behavior, a new package size, a second shooter joining you, or a shift in the work you are trying to book. Date the page each time you revise it so you can see how your standards have moved.

Is a culling criteria page worth it if I only shoot a few jobs a year?

Yes, and arguably more. With twenty weddings a year you build muscle memory that keeps you roughly consistent. With five, the gap between jobs is long enough that you genuinely forget what you decided last time, and the page is doing the remembering that repetition would otherwise do for you.

FOUNDING COHORT · 100 SEATS

Pick against your own standards, not at midnight.

Kepla for Mac clears the obvious misses from a card, names the reason on every frame it sets aside, and leaves the choosing to you. Nothing is ever deleted, moved or renamed. Free through the private preview · the first hundred photographers keep it at $99 a year.

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