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GLM / A field guide to cinema glass36 lens families

The image starts here.

Lens
Explorer

Find a lens by its character, its format, or the way you shoot.

Original illustrative lens50 mm / T1.5 study

The assembled lens

A machine for seeing.

Precision rings outside. Carefully arranged glass inside. Turn the lens, then pull the assembly apart.

Scroll to take it apart
0°

Conceptual anatomy. No manufacturer design or optical performance is being simulated.

A FEW MINUTES AT THE OPTICAL BENCH

PLAY WITH LIGHT.

Turn a control. Watch the image change.
Three small experiments in seeing.

f/2.8HIGHLIGHTIRIS / GEOMETRIC STUDY

Illustrative optics. These are diagrams, not sample footage from a named lens.

EXPERIMENT 01

OPEN IT UP.

A small opening. A big difference. Move the iris and see how aperture changes the light passing through a lens.

f/2 · wide openf/16 · stopped down
Iris blades
51%

Geometric light relative to f/2.
Exposure settings held constant.

A wider aperture usually gives shallower depth of field. Distance and format matter too. T-stops account for transmission loss; this f-stop sketch does not.

Read more from Nikon

THE GLASS MAKES A DIFFERENCE

FIND YOUR
KIND OF GLASS.

From precise modern primes to gloriously imperfect classics. Explore 36 lens families by what makes them different.

36 families in the collection

THE LENS COLLECTION
10Zoom
DZOFILM X-Tract, 18–28mm, straight view
Unusual optics

18–28mm, straight viewImage: Pace Rentals

DZOFilm

DZOFILM X-Tract

A full-frame probe zoom offered in direct, 90-degree and 360-degree periscope configurations. It reaches 2.1x magnification at 28mm with a 6mm working distance.

Focal range
18–28mm
Maximum aperture
T8
Super 35 / Full Frame

12 of 36 on the bench

Product images show selected focal lengths or sets. Coverage, mechanics and appearance can vary by focal length, generation and rehousing. Image sources are linked with each lens.

THE SHORTLIST2 / 2
Tribe7 Blackwing7
ZEISS Super Speed Mk III
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