The umbrella term for all camera optics – the optical system that focuses light onto the sensor and shapes the image. A fundamental element of composition.
What are Lenses?
Lenses (German: Objektive) are the optical system of a camera that focuses light onto the sensor and shapes the image. They determine focal length, aperture speed, sharpness characteristics, and rendering – fundamental elements of image creation in film.
Technical Definition
| Aspect | Details |
|---|---|
| Function | Focus light |
| Components | Lens groups, aperture, focus |
| Key Metrics | Focal length, aperture speed |
| Output | Image on sensor |
Basic Lens Types
By Focal Length
| Type | Focal Length | Characteristics |
|---|---|---|
| Wide-Angle | < 35mm | Wide view, distortion |
| Normal | 35–60mm | Natural perspective |
| Telephoto | > 70mm | Compression, distance |
| Super Telephoto | > 200mm | Extreme compression |
By Design
| Type | Feature | Application |
|---|---|---|
| Prime/Fixed Focal Length | Single focal length | Maximum quality |
| Zoom | Variable focal length | Flexibility |
| Macro | Close focusing | Close-ups |
| Specialty | Tilt-Shift, Probe | Effects |
Cinema vs. Photo Lenses
| Aspect | Cinema | Photo |
|---|---|---|
| Focus Throw | Smooth, long | Short throw |
| Aperture Ring | Stepless | Clicking |
| Body | Robust, heavy | Lightweight |
| Mount | PL, LPL | EF, E-Mount |
| Price | €5,000–€50,000+ | €500–€2,500 |
Key Lens Manufacturers
Cinema Segment
| Manufacturer | Series | Characteristics |
|---|---|---|
| ARRI/Zeiss | Master Prime | Reference |
| ARRI | Signature Prime | Modern-Organic |
| Cooke | S4, S7 | Warm, Character |
| Panavision | Primo, Sphero | Exclusive |
| Leica | Summicron-C | Precise |
| Zeiss | Supreme | Full Frame |
Budget/Indie
| Manufacturer | Series | Characteristics |
|---|---|---|
| Sigma | Cine | Value for money |
| Samyang | XEEN | Affordable |
| DZO | Vespid | Budget-Cine |
| Canon | CN-E | Versatile |
Lens Characteristics
Optical Properties
| Property | Description |
|---|---|
| Sharpness | Resolving power |
| Contrast | Dynamic range |
| Bokeh | Quality of out-of-focus areas |
| Flare | Behavior with backlight |
| Distortion | Geometric aberrations |
Rendering Character
| Style | Example |
|---|---|
| Clinical | Master Prime |
| Organic | Signature Prime |
| Warm | Cooke |
| Vintage | Super Baltars |
| Modern-Clean | Zeiss Supreme |
Lens Choice by Genre
| Genre | Typical Lenses |
|---|---|
| Drama | Cooke, Panavision |
| Action | Zoom sets |
| Horror | Wide-angle, vintage |
| Commercials | Master Prime, Macro |
| Documentary | Zooms, lightweight primes |
Lens Terminology
Terms
| Term | Meaning |
|---|---|
| Fast | High aperture speed (f/1.4 etc.) |
| Sharp | High resolution |
| Soft | Reduced sharpness |
| Character | Specific rendering |
| Clean | Free of aberrations |
Set Composition
| Set Type | Focal Lengths |
|---|---|
| Minimal | 25, 50, 85 |
| Standard | 18, 25, 35, 50, 85, 135 |
| Extended | + 14, 24, 40, 100, 180 |
Care and Handling
Protection
| Measure | Description |
|---|---|
| Caps | Front and rear |
| Case | Padded transport |
| Cleaning | Optical cloths only |
| Climate | Avoid condensation |
On Set
| Practice | Description |
|---|---|
| Mounting | Carefully, correctly |
| Focus Check | Before each shot |
| Lens Change | In a protected environment |
| Documentation | Note focal length, aperture |
The Legacy
History
- 1800s: First cinema lenses
- 1930s: Optical revolution
- 1960s: Cooke character defined
- Today: Vintage revival
Influence
Lenses have shaped the look of film – from the soft focus of the silent era to the clinical sharpness of modern productions.
Today
| Aspect | Details |
|---|---|
| Prevalence | Fundamental equipment |
| Trend | Vintage rehousing, full frame |
| Cost | €500 to €50,000+ |
| Development | More character, less clean |
Modern Development
The trend is towards organic rendering and vintage character – perfect sharpness is no longer the sole objective; personality is valued.
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