Documentation Index
Fetch the complete documentation index at: https://docs.bfl.ml/llms.txt
Use this file to discover all available pages before exploring further.
Camera & Lens Cheat Sheet
| Term | Effect |
|---|---|
| f/1.4 – f/2.8 | Blurry background (shallow depth of field) |
| f/8 – f/16 | Everything sharp (deep depth of field) |
| 24mm | Wide angle — shows more of the scene |
| 35mm | Natural, documentary-style perspective |
| 50mm | Eye-level, neutral perspective |
| 85mm | Portrait-ideal, slight background compression |
| 135mm+ | Telephoto — strong background compression |
| ISO 100 | Clean image, low noise |
| ISO 1600–3200 | Brighter but grainy — useful for film-style looks |
| Macro lens | Extreme close-up detail |
| Anamorphic lens | Widescreen cinematic look with oval bokeh |
Lighting Keywords
| Term | Effect |
|---|---|
| Golden hour | Warm, soft, flattering — just after sunrise or before sunset |
| Blue hour | Cool, moody — just before sunrise or after sunset |
| Overcast | Flat, even, shadow-free — great for product shots |
| Rembrandt lighting | Dramatic triangle of light on the face |
| Split lighting | High contrast, half-face illuminated |
| Chiaroscuro | Strong light/shadow drama |
| Backlit / rim light | Subject glowing at the edges |
| Soft box / key light | Studio, controlled, even |
| Practical lighting | Light sources visible in the scene (lamps, neon, fire) |
| Diffused light | Soft, wrap-around, minimal shadows |
| Harsh direct light | Strong shadows, high contrast |
Style Keywords
| Category | Keywords |
|---|---|
| Photographic | ”shot on Kodak Portra 400”, “35mm film”, “IMAX camera”, “Sony A7IV”, “Hasselblad X2D”, “Canon 5D” |
| Cinematic | ”cinematic”, “anamorphic lens flare”, “teal and orange color grading”, “film noir”, “Roger Deakins cinematography” |
| Artistic | ”oil painting”, “watercolor”, “pencil sketch”, “impasto texture”, “Art Nouveau”, “Bauhaus” |
| Digital art | ”concept art”, “matte painting”, “octane render”, “unreal engine”, “stylized 3D” |
| Illustration | ”flat design”, “vector illustration”, “comic art”, “anime style”, “graphic novel”, “whimsical” |
| Vintage | ”80s vintage photo”, “2000s digicam”, “VHS aesthetic”, “polaroid”, “sepia tone” |
Composition Techniques
| Technique | When to Use | Example Phrase |
|---|---|---|
| Rule of thirds | Natural, balanced framing | ”composed using rule of thirds” |
| Leading lines | Guide the eye through the image | ”diagonal lines leading to main entrance” |
| Foreground/background layers | Add depth and dimension | ”strong foreground boulder, background mountains” |
| Low angle (worm’s eye) | Make subjects powerful and dominant | ”low angle worm’s eye view, dramatic diagonal lines” |
| High angle (bird’s eye) | Show patterns and spatial relationships | ”bird’s eye view, geometric patterns of city blocks” |
| Dutch angle | Tension and psychological unease | ”dutch angle, psychological tension” |
| Symmetrical | Formal, balanced, architectural | ”perfectly symmetrical composition” |
| Negative space | Minimal, focused, product | ”minimalist composition with generous negative space” |
Model-Specific Quick Reference
FLUX.2 [pro] & [max]
FLUX.2 [pro] & [max]
- No negative prompts supported
- Excellent typography — use quotation marks for exact text
- HEX color codes for brand-precise color matching:
"in color #FF5733" - JSON structured prompts supported for production workflows
- Reference specific camera models for authentic photorealistic looks
FLUX.2 [klein]
FLUX.2 [klein]
- What you write is exactly what the model receives
- Write in prose, not keyword lists — describe scenes like a novelist
- Lighting descriptions have the highest single impact on output quality
- Supports image editing with single and multi-reference inputs
- Add
Style: [style]. Mood: [mood].at the end for consistent aesthetics
FLUX.1 Kontext
FLUX.1 Kontext
- Specify what should change — the input image provides all other visual context
- Use quotation marks for text editing:
Replace 'joy' with 'BFL' - Be explicit about preservation: “while maintaining the same facial features and hairstyle”
- Prefer specific verbs: “change the clothes” over “transform the person”
- For multiple changes, add as many explicit details as possible