Infografika zlatého řezu a pravidlo tretin ve fotografii

Educational infographic poster titled "Golden Ratio Photography Guide" in portrait layout, designed as a vintage camera manual page; text labels must be sharp, crisp, and fully readable. Build a clear educational infographic about golden ratio photography while using the visual archetype of an exposure triangle manual spread for structure. Include 5 numbered components with strong hierarchy, exact on-image English text, and precise diagrams. Connect all components with thin sepia arrows, dotted construction lines, and visible sequence numbers 1-5 guiding the eye clockwise from top left to bottom right. Visual style: vintage camera manual, accurate technical guidance, engraved editorial diagram feel, subtle paper grain background, vintage sepia palette with warm brown ink, faded cream paper, muted brass accents, calm instructional mood, magazine-grade editorial illustration, vector-clean lines, no photographic textures. Do not include any real camera-brand logos.

1. heading: "Golden Ratio Spiral"; caption: "Place the main subject where the spiral tightens for natural visual emphasis." Visual: large rectangular composition frame containing a precise golden rectangle subdivision and Fibonacci spiral overlay; inside it, a sample scene diagram of a person near a window with the face positioned at the spiral focal point; add corner crop marks, faint measurement ticks, and a small inset showing the spiral shell geometry.

2. heading: "Rule of Thirds vs Golden Ratio"; caption: "Thirds use equal grids, while the golden ratio creates a more organic visual path." Visual: side-by-side comparison panel with two miniature camera viewfinder frames; left frame shows a 3x3 grid and a landscape horizon aligned to a third, right frame shows the same landscape with a golden spiral and subject shifted to the spiral node; include a small note label inside the art reading "More rigid" under thirds and "More fluid" under golden ratio.

3. heading: "Aperture"; caption: "A wider aperture helps isolate the subject placed on the spiral focal area." Visual: one corner of an exposure triangle diagram, with a mechanical aperture iris icon, lens cross-section cutaway, and shallow depth-of-field sample frame where a flower at the spiral center is sharp while the background softens; label the triangle corner exactly "Aperture" and add a small metric label "f/2.8 -> f/11".

4. heading: "Shutter"; caption: "Use shutter speed to support the composition with either frozen detail or guided motion." Visual: second corner of the exposure triangle, with a leaf shutter mechanism diagram, directional motion arrows, and two small scene examples: a cyclist crossing a spiral-guided curve frozen sharply at one speed and motion-blurred along the spiral path at another; label the triangle corner exactly "Shutter" and add metric label "1/1000s -> 1/15s".

5. heading: "ISO"; caption: "Keep ISO as low as practical so the composition remains clean and detailed." Visual: third corner of the exposure triangle, with a film grain / sensor sensitivity icon, two inset rectangles comparing low-noise and high-noise image texture on the same spiral composition, and a central completed exposure triangle linking Aperture, Shutter, and ISO; label the triangle corner exactly "ISO" and add metric label "100 -> 3200".

Add a bottom legend strip with exact English labels: "Golden Spiral", "Focal Point", "Leading Curve", "Grid Comparison", "Exposure Triangle". Show connecting flow using arrows from the main spiral panel to the comparison panel, then down through the three triangle components, converging into the central exposure triangle. Ensure all diagrams are technically neat, symmetrical, and educational, with readable labels and clean line weights. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no watermarks Accurate technical guidance. No real camera-brand logos.