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Aperture Craft

Bokeh Science: Master the Art of Background Blur

Understand aperture blades, focal length, and distance — the three variables that control every blur you create.

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Home Bokeh Science Guide

Why Most Photographers Get Bokeh Wrong

They buy expensive lenses without understanding the physics. Here's what you'll actually learn.

Aperture Blade Geometry

How 7, 9, and 11-blade diaphragms shape your out-of-focus highlights — and why blade count matters more than you think.

Focal Length Mapping

The exact relationship between 35mm, 50mm, 85mm, and 135mm — and how each renders background separation differently.

Real Settings, Real Shots

Copy-paste camera settings for portraits, street, and macro — each optimized for maximum background blur quality.

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What Lands in Your Inbox

A complete 12-page PDF guide — not a teaser, the full resource.

12-Page PDF Guide

FREE DOWNLOAD
  • Aperture blade geometry — how 7 vs 9 vs 11 blades shape bokeh
  • Focal length blur comparison: 35mm through 200mm
  • Subject-to-background distance formula with examples
  • Copy-paste settings for portrait, street, macro & landscape
  • Bokeh quality checklist for evaluating any lens
  • Best bokeh lenses under $500 ranked by value

Common Questions

Is this really free?
Yes, 100% free. No credit card, no trial, no upsell. We send one focused email per week and the guide is yours immediately after confirming your email.
How often will you email me?
Once per week, every Thursday. That's it — no daily spam, no surprise sequences. One technique-focused email you can read in under 3 minutes.
What exactly will I receive?
Immediately: the 12-page Bokeh Science Guide PDF. Weekly: one email covering a specific technique — lens reviews, camera settings, editing tips, and field-tested methods. Written by Lauren Mitchell, a photographer with 12 years of experience.
Can I unsubscribe anytime?
One click, instant, no questions asked. Every email has an unsubscribe link at the bottom. We never sell, share, or rent your email to anyone.
Who is this for?
Any photographer using a mirrorless or DSLR camera — from first-time manual mode shooters to semi-pros refining their craft. If you want to understand why your backgrounds look the way they do, this is for you.

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