How to Make Realistic Photos With Gemini: Imagen 3 Realism Tips
Originally published in Turkish. Read the original →
Escaping the artificial look and capturing the feel of 'a real photo' is not always easy in AI image generation. In this guide, I go step by step through how to produce ultra-realistic photos with Google Gemini and the Imagen 3 engine.
One of the most common problems when generating images with AI is that the results look overly flawless, "plastic" or like a 3D digital rendering. Imagen 3, the image engine behind Google Gemini, is one of the models that minimizes this artificial look and imitates the way light refracts in a photograph most naturally.
So how can we use Gemini to produce images that look completely realistic, as if they came out of a professional camera? In this post, I look at the optical and atmospheric tips that will take your AI prompts to the next level when making realistic photos.
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1. Describe the Flaws, Not Perfection (Texture & Imperfections)
Nothing in the real world is perfectly smooth or flawless. A human face has pores, fine wrinkles and blemishes; a wooden table has scratches and specks of dust. To stop the AI from producing images that are "too perfect", you should include these imperfections in your prompt.
* Looks Artificial: "A beautiful old man portrait, very detailed."
* Looks Realistic: "A close-up portrait of an elderly man with deep wrinkles, weathered skin texture, gray stubble beard. Visible skin pores and fine imperfections, natural outdoor lighting."
This small touch disables the model's smoothing filter and makes it add realistic textures to the scene.
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2. Use the Language of Photography and Camera Terms
Instead of telling Gemini "make it realistic", give it parameters that imitate a professional photographer's lens and camera choices. Values such as focal length and aperture make the AI add depth to the scene and professionally blur the out-of-focus areas (bokeh).
* For Portraits: 85mm lens look, f/1.8 aperture, shallow depth of field (This softly blurs the background while bringing the subject forward).
* For Landscapes and Street Scenes: 35mm lens, f/8 aperture, deep focus (This keeps the whole scene sharp and detailed).
* For Macro Shots: 100mm macro lens, sharp details, micro texture focus (Ideal for snowflakes, water droplets or small objects).
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3. Specify the Quality and Direction of the Light
In photography, light is everything. If you only tell the AI the subject and leave the light unspecified, the model uses "flat" studio lighting that is evenly spread from every direction and looks artificial. Instead, specify the light's almost physical source and its quality:
* Natural and Soft Light: "Soft diffused daylight from a nearby window" or "overcast daylight" (cloudy-day light softens shadows).
* Dramatic and Golden Hour Light: "Warm golden hour sunlight, low angle side light, casting long soft shadows".
* Night and Street Light: "Atmospheric night lighting, illuminated by a single warm streetlamp, cool shadow tones".
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4. Color and Film Aesthetics (Film Grain & Grade)
One of the best ways to break the digital feel of AI images is to add a light film grain or an analog film aesthetic. Very light grain ties the pixels together, breaks the digital sharpness and makes the picture look as if it were printed on paper or taken from a strip of film.
* Phrases You Can Use:
* Subtle film grain look (light film grain)
* Muted color palette, natural contrast (natural contrast and a muted color palette)
* Ektachrome or Portra 400 film simulation (analog film color toning)
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A Realistic Example: Step-by-Step Prompt Analysis
Let's combine these rules and design a portrait of an old seaman.
Prompt:
A close-up portrait of an old weathered fisherman holding a traditional wooden smoking pipe. Deep facial wrinkles, detailed gray beard, wearing a textured dark wool beanie and a rugged canvas jacket. Golden hour sunlight coming from the side, casting warm highlights on one side of his face. Foggy harbor background with blurred silhouettes of fishing boats, 85mm lens look, f/2.2, natural depth of field, subtle film grain.
Why Does It Work?
1. Subject and Imperfections: With the words "Deep facial wrinkles, weathered skin, textured wool" we broke the flawlessness and added texture. 2. Light: By saying "Golden hour sunlight coming from the side" we chose a directional light that adds depth to the face. 3. Camera and Lens: With "85mm lens look, f/2.2" we softly blurred the harbor in the background and created a sense of depth (depth of field). 4. Finishing Touch: With "Subtle film grain" we broke the digital sharpness and gave it an analog feel.Getting the most realistic images from Gemini and Imagen 3 is a process of trial and error. If your first attempt gives you a plastic result, tell it to make the light softer, lower the contrast and add more photography terms to your prompt. Over time, you will learn the models' language and be able to produce great results!
