Background blur strength
100/100
Very strong background blur
Free camera tool
Bokeh Simulator
Explore how aperture, sensor size, focal length, subject distance, background distance, lens type, and rendering character shape background blur and subject separation.
Sensor formats
8
Lens characters
7
Preview
Live
Bokeh lab
Background blur, lens character, and subject separation
Tune aperture, focal length, distance, sensor size, and rendering style. This is a practical approximation, designed to explain the look before real sample images and owner votes are added.
Current look
Creamy85mm at f/1.8 on FF
100/100 blurModern prime
Bokeh intensity96/100 separation
Subject separation score
96/100
Excellent subject separation
Aperture diameter
47.2mm
Estimated blur circle: 1.53mm on the sensor.
Full-frame equivalent
85mm f/1.8
FF crop factor x1.00 for framing and depth-of-field feel.
What this bokeh setup is doing
On Full Frame, 85mm at f/1.8 behaves like roughly 85mm f/1.8 on full frame for framing and depth-of-field feel.
With the subject at 2.20 m and the background 9.00 m farther back, the calculation predicts very strong background blur and excellent subject separation.
Creamy bokeh means large, gentle blur with very soft transitions and little background chatter. Great for beauty, weddings, newborns, and calm portrait backgrounds.
Recommended use cases
portraits, weddings, interviews, product beauty shots, and controlled subject isolation
Suggested lens direction
An 85mm f/1.4 or f/1.8 portrait prime is the natural starting point.
Character chips
Choose the rendering personality
Find lenses known for bokeh
Match portrait primes and telephoto lenses to your camera mount, budget, and workflow.
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Calculate focus depth, hyperfocal distance, aperture equivalence, and blur strength.
OpenCompare focal length looks
See how 35mm, 50mm, 85mm, and telephoto lenses change framing and perspective.
OpenLens examples
Popular lenses to research after testing bokeh
Bokeh is not only aperture. Real buying decisions should include autofocus, rendering, minimum focus distance, stabilization, weight, mount compatibility, price history, and resale strength.
Nikon
Fairly priced
Nikon Z 70-200mm f/2.8 VR S
Possibly the sharpest 70-200 made
4.9(430)84% resale
$3,308.55
0.0% 30d
Sony
Good time to buy
Sony FE 24-70mm f/2.8 GM II
The benchmark pro standard zoom
4.8(1,200)84% resale
$2,931.80
-2.0% 30d
Sony
Fairly priced
Sony FE 70-200mm f/2.8 GM II OSS
The lightest pro telephoto zoom
4.8(760)85% resale
$3,568.85
0.0% 30d
Sony
Fairly priced
Sony FE 50mm f/1.4 GM
Compact, fast, flawless fifty
4.8(510)80% resale
$1,657.70
0.0% 30d
Sony
In high demand
Sony FE 85mm f/1.4 GM II
Portrait king, now far lighter
4.8(220)84% resale
$2,294.75
0.0% 30d
Sigma
Fairly priced
Sigma 85mm f/1.4 DG DN Art
Lightweight pro portrait prime
4.8(410)74% resale
$1,527.55
0.0% 30d
Bokeh FAQ
Background blur and lens rendering explained clearly
The simulator is useful for direction, not final optical judgment. Always validate with real sample images from the lens, camera body, and subject distances you actually use.
What creates stronger bokeh?
Stronger bokeh usually comes from wider apertures, longer focal lengths, closer subject distance, larger sensors, and more distance between the subject and background.
Is bokeh the same as depth of field?
Not exactly. Depth of field describes how much of the scene appears acceptably sharp. Bokeh describes the quality and character of the out-of-focus areas.
Why do two lenses at the same settings look different?
Optical design, aperture shape, aberration correction, coatings, mechanical vignetting, focus breathing, and sample variation can change the look of blur circles and transitions.
Does sensor size affect bokeh?
For the same framing, larger sensors usually use longer focal lengths or closer camera distance, which can create shallower depth of field and stronger separation.
Is this simulator physically perfect?
No. It starts with useful approximations for blur strength and lens character. GearAtlas can later improve it with real sample images, community votes, and lens rendering data.
Continue from Bokeh
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