Flux

Verified against Flux · 2026-07-27

Brief a print-ready, ultra-high-resolution poster with Flux1.1 [pro] Ultra

A composition-and-detail-density brief for Flux1.1 [pro] Ultra, the raw-mode, up-to-4-megapixel Flux variant, structured for a large-format print where fine detail has to hold up at a viewing distance far closer than a typical screen image.

Flux1.1 [pro] Ultra7 fillable variables

The prompt

Ready to copy — highlighted parts are example details you can swap.

FINAL USE CASE
a 24x36 inch event poster, printed and mounted, viewed from roughly 3-4 feet away. This determines how much fine detail actually needs to survive — a poster viewed at arm's length needs real texture at every depth, not just a sharp hero subject with a soft background.

SUBJECT
a solo trumpet player mid-performance under a single spotlight, captured from a low angle

SETTING AND BACKGROUND DETAIL
a dim jazz club interior — brick wall, hanging string lights, a few blurred silhouettes of an audience at small tables. Because this will print at large size, describe background elements with the same specificity as the foreground subject — the brick texture and individual string lights should still read as distinct shapes even slightly out of focus, not a flat colored smear — rather than leaving distant elements vague, since "vague" at large-format print size reads as visibly soft or empty, not tastefully out of focus.

COMPOSITION FOR THE FINAL CROP
the lower third left deliberately dark and uncluttered for the event date and venue name, subject occupying the upper two-thirds. State explicitly where any text or logo will be placed by the designer afterward, and keep that zone visually calm, the way the reserved-space technique works for social graphics — except here the stakes are a wasted print run, not a re-edit.

RAW MODE VERSUS STYLIZED LOOK
raw, unretouched skin texture and natural grain — this should feel like a real concert photograph, not a retouched album cover. State whether this should read as an unretouched, raw-feeling photograph — Ultra's raw mode — or a more polished, intentionally graded commercial look, since Ultra's raw setting measurably changes skin texture, grain, and color punchiness.

CAMERA AND LENS
shot as if on a Sony A7R V with an 85mm f/1.4 lens, shallow depth of field isolating the trumpet and face, described with the same care as a magazine cover shoot, since Ultra's higher resolution will actually resolve lens character — grain, chromatic fringing, depth-of-field falloff — that a lower-resolution Flux generation would simply not render with enough fidelity to notice.

WHAT THE FRAME SHOULD NOT CONTAIN
Because Flux has no negative-prompt field, state this positively: the frame contains only the subject and setting described above — no watermark, no placeholder text, no visible seam or tiling artifact anywhere across the full high-resolution canvas.

BLEED AND TRIM ALLOWANCE
If this will be professionally printed, state whether the composition needs a bleed margin — extra image content extending past the final trim line on every edge — so nothing critical (the subject's silhouette, a key compositional element) sits so close to the edge that a small trim variance during printing could cut into it. Describe what should exist in that margin area, since it is still part of the generated canvas even though it won't be visible in the final trimmed print.

CHECK BEFORE SENDING TO PRINT
View the output at 100% zoom on at least three different regions of the frame — the subject, the mid-ground, and a far background corner — rather than judging overall sharpness from a shrunk-down preview, since a preview that looks sharp can still reveal soft or repetitive-looking texture once inspected at the actual resolution a print job will use.

OUTPUT
One image at Ultra's full resolution, with detail density consistent across the entire frame, not just the subject, sharp enough to hold up at the final use case's actual viewing distance.

Customize

Optional — swap in your own details for the highlighted parts above.

Why this works

Ultra's distinguishing feature versus standard Flux1.1 [pro] is native support for higher output resolution, up to roughly 4 megapixels — which means detail that would simply be invisible or averaged away at a lower-resolution generation becomes visible and evaluable at Ultra's resolution. A background described vaguely ("a jazz club") that would pass unnoticed in a web-sized image will read as noticeably soft or generically rendered once printed large, which is why SETTING AND BACKGROUND DETAIL insists on foreground-level specificity for background elements too. Naming raw_mode_note explicitly matters because Ultra ships with a distinct raw-mode toggle that measurably changes skin texture, grain character, and color saturation toward a more unretouched, photographic look versus its default, more polished commercial rendering. These are genuinely two different outputs from the same model, and not specifying which one is wanted leaves it to a default that may not match the brief's intended feel. Calling out camera and lens with the same care as a magazine shoot matters more at Ultra resolution specifically than at standard Flux resolution, because lens character — grain, chromatic fringing at high-contrast edges, the exact falloff curve of a fast aperture — only becomes resolvable detail once the base resolution is high enough to render it. At lower resolutions, the same instruction produces a similar-looking but less textured result, so the payoff for this level of camera detail scales directly with the resolution tier being used. The safe-area instruction is functionally the same reserved-space technique used for social graphics, but the stakes are different for a print job: a poster with the wrong composition can't simply be re-cropped and reposted the way a digital graphic can, since a physical print run is a real, unrecoverable cost. Stating the safe zone explicitly before generation is cheaper than discovering after printing that the subject's head sits exactly where the event date needed to go.

Verified against

Flux Flux1.1 [pro] Ultra · 2026-07-27

Changelog

  • 2026-07-27 Initial publish, verified against Flux1.1 [pro] Ultra for a large-format print brief with a defined safe area and raw-mode texture.

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