TAMRON Camera and Lens Terminology and Notation

TAMRON

A Japanese lens manufacturer.

Tamukyu

The nickname for Tamron's 90mm macro lens.
Beginning with the 90mm F2.5 Macro (52B) released in 1979, it is a traditional Tamron flagship lens that continues to this day with models compatible with modern AF and digital SLRs.

SP

Abbreviation for "Super Performance."
Given to high-quality, high-end lenses.

Di

Abbreviation for "Digitally Integrated Design."
Indicates full-frame compatibility.

Di II

Indicates compatibility with APS-C size sensors for digital cameras.

Di III

Indicates exclusive use for mirrorless interchangeable-lens cameras.

VC

Abbreviation for "Vibration Compensation." Refers to the image stabilization function.

RXD

Abbreviation for "Rapid eXtra-silent stepping Drive."
Indicates the adoption of a stepping motor.

PZD

Abbreviation for "Piezo Drive."
Indicates the adoption of an ultrasonic motor.

USD

Abbreviation for "Ultrasonic Silent Drive."

LD

Abbreviation for "Low Dispersion."
Refers to lenses that incorporate special low-dispersion glass to correct chromatic aberration.

Aspherical

Refers to lenses that use aspherical elements to correct distortion.

XR

Abbreviation for "Extra Refractive Index."
Lenses using high refractive index glass.
They correct various aberrations and allow for a more compact lens design.

IF

Abbreviation for "Internal Focus."
The length of the lens does not change during focusing.

G2

A renewed version of a lens with the same specifications; a successor model.

HLD

Abbreviation for "High/Low torque-modulated Drive."
A new motor that achieves high precision and high torque while being compact and power-efficient.
Since the motor can be miniaturized, there is a high degree of freedom in the design of the AF module.
It is adopted in super telephoto high-magnification zooms, etc.