Name’s Origin
Fírin is a variation of Fírinne, the Old Irish word for "truth", which was coined during the Gaelic Revival in the late 19th Century. It means, "that which is real". It signifies "being true to someone or something". And it represents a promise from Tokina to photographers to help them capture the truth in their images with this revolutionary new lens.
With FíRIN, photographers can shoot with confidence, knowing that every image captured with their mirrorless cameras will be its own moment of truth.
Overview
FíRIN 20mm F2 FE AF is an autofocus version of the existing FíRIN 20mm F2 FE MF super wide angle lens for full-frame Sony E-mount. Being specially designed for Sony E-mount and adopting the same optical design as in MF model, FíRIN series now offers more options for end-users to choose according to the purpose and style of shooting.
Compact size
In terms of weight and size FíRIN 20mm F2 FE AF is designed to fit Sony E-mount camera. Being fast wide angle prime lens it performs great optical results that come from such a compact and lightweight construction. Feel the exquisite balance between lens and camera body when go out shooting with FíRIN 20mm F2 FE AF.
Optical performance
Being optimized for full size camera sensors in terms of size and resolving ability, the optical design adopts 2 aspherical elements and 3 lenses molded from Super-low Dispersion glass to significantly reduce any type of aberration including spherical aberration, distortion and chromatic aberration while assuring high resolution and stunning performance even at wide open aperture.
LENS CONSTRUCTION MTF CHART
Functionality
Keeping along with the basic development concept of the previous model FíRIN 20mm F2 FE AF is made compatible to auto focus and other functions of the camera providing perfect functionality and usability for the photographer.
Ring-shaped ultrasonic autofocus motor
For AF drive system FíRIN 20mm F2 FE AF adopts quick responsive and silent ring-shaped ultrasonic motor. Coupled with GMR sensor AF system performs fast and accurate focusing.
Full compatibility to AF system
FíRIN 20mm F2 FE AF is fully compatible with Fast Hybrid AF system. At all AF mode settings including DMF, FíRIN 20mm F2 FE AF provides the same auto focus performance as with common E-mount AF lenses. Fine manual focus adjustment is also possible.
MF Assist function
Accurate focusing is supported by compatibility to MF Assist function, when fine focusing adjustment is operated by manual rotation of the focusing ring with the simultaneous interlocking with image enlarging function and bar distance display on the monitor.
Optical correction
Due to the data transmittance ability via electric contacts the camera obtains necessary data from the lens chip to correct shading, distortion and lateral chromatic aberrations. Optical corrections can be done by the camera as well.
Image Stabilization
By transmitting focal length data FíRIN 20mm F2 FE AF is able to get maximum use of In-Body Image Stabilization of the camera.
Aperture fully controlled by camera
Camera system takes care of the lens aperture providing full compatibility to all shooting modes.
General info
Brand Tokina
Product Family Lens
Model FíRIN 20mm F2 FE AF
Model Description Tokina FíRIN 20mm f/2 FE AF
Series FiRIN
Mount Sony E
Type Wide Prime
Color Black
Country of Origin Japan
Main specifications
Focal Length 20mm
Maximum Aperture f/2
Minimum Aperture f/22
Automatic Aperture Yes
Manual Aperture Ring No
Angle of View 92°40'
Minimum Focusing Distance 0.28m
Macro Ratio 1:10.29
Focusing Mode Automatic
Manual Focusing Ring Yes
Autofocus Switch Switch
Focusing Type Internal Focus
Sensor Size Full Frame
Filter Size 62mm
Multi-coating Yes
Construction
Construction Type Glass
Construction E/G 13 Elements in 11 Groups
Aperture Blades 9
Electrical Contacts Yes
Additional info
Dimensions 73.4x81.5 mm
Weight 464g
Lens Hood BH-623
Package Carton Box, Front Lens Cap, Instructions Manual, Lens Hood, Rear Lens Cap, Warranty Sheet
Warranty 2 Year Limited Warranty
