Spherical vs Anamorphic

Spherical vs Anamorphic Lenses Explained

Key Differences, Image Characteristics, and When to Use Each

Introduction

Spherical and anamorphic lenses are the two primary lens types used in filmmaking. While both capture images, they produce very different visual results.

The choice between them affects:

  • Aspect ratio
  • Field of view
  • Depth of field
  • Lens flares
  • Overall cinematic style

Understanding the difference between spherical and anamorphic lenses allows you to make intentional creative decisions and match your visual style to your project.

1. What Are Spherical Lenses

Spherical lenses are the most common type of lens used in photography and video.

Characteristics

  • Capture the image without distortion or compression
  • Maintain natural proportions
  • Standard projection onto the sensor

Image Behavior

  • Straight lines remain straight
  • Bokeh appears circular
  • No horizontal stretching

Advantages

  • Simple workflow
  • Widely available
  • More affordable
  • Easier to use and focus

Use Cases

  • Most film and video production
  • Television and online content
  • Commercial and documentary work

Spherical lenses are the standard for most productions.

2. What Are Anamorphic Lenses

Anamorphic lenses use a specialized optical design to capture a wider image by compressing it horizontally.

Characteristics

  • Horizontally squeeze the image
  • Require desqueezing in post or monitoring
  • Capture a wider field of view

Image Behavior

  • Oval shaped bokeh
  • Horizontal lens flares
  • Expanded horizontal field of view
  • Unique distortion characteristics

Advantages

  • Distinct cinematic look
  • Wider image without changing sensor size
  • Strong visual identity

Limitations

  • More expensive
  • Heavier and more complex
  • Require special workflow

Use Cases

  • Feature films
  • High-end commercials
  • Cinematic storytelling

Anamorphic lenses are often chosen for artistic reasons rather than practicality.

3. Key Differences Between Spherical and Anamorphic

FeatureSphericalAnamorphic
Image projectionStandardHorizontally compressed
Aspect ratioNative sensor ratioWider after desqueeze
Bokeh shapeCircularOval
Lens flaresNeutralHorizontal streaks
Field of viewStandardWider horizontally
WorkflowSimpleMore complex

4. Aspect Ratio Differences

Aspect ratio is one of the biggest visual differences.

Spherical

  • Typically uses standard ratios such as 16 by 9 or 1.85 to 1

Anamorphic

  • Often used for wider cinematic ratios such as 2.39 to 1

Why It Matters

Anamorphic allows a wider cinematic frame without cropping as much vertical resolution.

5. Field of View

Anamorphic lenses capture more horizontal information.

Result

  • Wider composition
  • More environmental context
  • Unique framing possibilities

6. Depth of Field

Depth of field behaves differently with anamorphic lenses.

Anamorphic

  • Shallower perceived depth of field
  • More gradual focus falloff

Spherical

  • More predictable depth of field
  • Easier to control

7. Bokeh Differences

Bokeh refers to the out of focus areas of an image.

Spherical

  • Circular bokeh
  • Clean and natural look

Anamorphic

  • Oval shaped bokeh
  • Stretched vertically
  • More stylized appearance

8. Lens Flares

Lens flares are a signature characteristic.

Spherical

  • Neutral or subtle flares

Anamorphic

  • Horizontal streak flares
  • Strong stylistic element

9. Distortion and Image Characteristics

Spherical

  • Minimal distortion
  • Accurate representation

Anamorphic

  • Unique distortion patterns
  • Edge stretching
  • Slight warping

These characteristics contribute to the cinematic look.

10. Workflow Differences

Spherical Workflow

  • Shoot and edit directly
  • No special processing required

Anamorphic Workflow

  • Image must be desqueezed
  • Requires proper monitoring
  • More complex post-production

11. Real World Example

Dialogue Scene

Using spherical lenses

  • Clean and natural look
  • Simple composition

Using anamorphic lenses

  • Wider frame
  • More background context
  • Stylized cinematic feel

12. When to Use Each

Use Spherical Lenses When

  • You need speed and simplicity
  • You are working on smaller productions
  • You want a clean, natural look

Use Anamorphic Lenses When

  • You want a cinematic widescreen look
  • You are creating stylized visuals
  • You are working on high-end productions

13. Common Mistakes

❌ Using anamorphic lenses without understanding workflow
❌ Choosing anamorphic only for trend instead of purpose
❌ Ignoring aspect ratio implications
❌ Not planning for desqueeze in post
❌ Overusing lens flares

Conclusion

Spherical and anamorphic lenses offer two very different approaches to capturing images.

In summary:

  • Spherical lenses are simple, natural, and versatile
  • Anamorphic lenses provide a wider, more cinematic look
  • Anamorphic introduces unique optical characteristics
  • Workflow and budget play a major role in choosing between them

Understanding these differences allows you to:

  • Match your lens choice to your story
  • Control visual style
  • Work efficiently on set
  • Create more intentional cinematic images

Mastering both lens types gives you greater creative flexibility and control.