Tamron Adds Two New Lens Teleconverters to Their Lineup

Alongside the announcement of their new SP 150-600mm f/5-6.3 Di VC USD G2 (Model A022) "Ultra-Telephoto" lens, Tamron has released two new teleconverters, the TC-X14 (1.4x) and the TC-X20 (2.0x).

Teleconverter 1.4x (Model TC-X14)

Teleconverter 2.0x (Model TC-X20)

Along with extending the maximum focal length of the lenses these teleconverters are attached to, Tamron notes that they allow compatible lenses to retain their autofocus and image stabilization properties, along with being both moisture and dust resistant.

The TC-X14 and TC-X20 will retail for $419 (US) and $439 (US), respectively. Currently they are being offered in Canon and Nikon mounts, with shipments scheduled for later this month (September, 2016). For a list of AF & VC compatible lenses, see their official press release below.




New models designed exclusively for Tamron lenses





September 1, 2016, Commack, New York - Tamron, a leading manufacturer of optics for diverse applications, announces the launch of two tele converter models exclusively[1] for select Tamron lenses. These accessories make it easy to expand the versatility of the new SP 150-600mm F/5-6.3 Di VC USD G2 (Model A022) ultra-telephoto zoom lens. TELECONVERTER 1.4x (Model TC-X14) increases the focal length by a factor of 1.4x, while TELECONVERTER 2.0x (Model TC-X20) doubles the focal length. Delivery of the new teleconverters, each available in Canon and Nikon mounts, will start on September 23 in the Japanese market and soon thereafter in the U.S. market at a price of $419 for the 1.4X and $439 for the 2X.



1. Increases maximum focal length

Although the maximum focal length is increased, the minimum object distance remains nearly the same, so the magnification ratio during close focusing is enhanced. Both teleconverters are carefully designed and constructed to preserve the original superior image quality of the lens. The 2.0x model uses one LD (Low Dispersion) lens element to suppress aberrations. BBAR (Broad-Band Anti-Reflection) coatings are deployed on both models to help minimize ghosting and flare.


2. Autofocus and VC features are retained with compatible lenses

Autofocus functions normally with compatible lenses (please refer to Compatible Tamron Lens List below). VC (Vibration Compensation) performance is maintained.


3. Moisture-Proof and Dust-Resistant Construction

The new teleconverters are ideal for use in outdoor photography when matched with any lens that has a Moisture-Resistant Construction because special seals that are dust-resistant and moisture-proof are used at every joint and seam.


4. Sturdy, durable barrel design

The barrel frame of the teleconverters are made of die cast aluminum, except for some parts of the exterior finish, to maintain extra strength when used with large lenses. The design utilizes a bayonet mount made of brass on the camera side and stainless steel on the lens side to ensure excellent durability even with repeated mountings and detachments.


Design Concept


These accessories embody Tamron's new design that's born from the pursuit of functional beauty and achieved by smoothly blending engineering and design enhancements. Meticulous craftsmanship is applied to every detail. The new teleconverters feature a metal lens barrel and share this same design concept. Both teleconverters provide remarkable ease of use--even the release lever offers a comfortable touch to the photographer's finger.


Compatible Tamron Lens List (As of September, 2016)


SP 150-600mm F/5-6.3 Di VC USD G2 (Model A022)

For Canon and Nikon

 Changes in zoom range when used with SP 150-600mm F/5-6.3 Di VC USD G2 (Model A022)


Mounted on 35mm full-frame DSLR camera

Mounted on APS-C format DSLR camera

Without teleconverter


Approx. 233-930mm

With 1.4x teleconverter


Approx. 326-1302mm

With 2.0x teleconverter


Approx. 465-1860mm


Changes in magnification ratio when used with SP 150-600mm F/5-6.3 Di VC USD G2 (Model A022)


Maximum Magnification Ratio

Without teleconverter


With 1.4x teleconverter


With 2.0x teleconverter



Available focusing mode when used with SP 150-600mm F/5-6.3 Di VC USD G2 (Model A022)

When using viewfinder

When using live view mode

With 1.4x teleconverter



With 2.0x teleconverter




*1 Autofocus functions normally on any camera that offers F/8 autofocusing (see your camera's instruction manual for your camera's ability).

*2 Subjects with low contrast and/or luminosity values can sometimes result in out-of-focus images.





Model                                                            : TC-X14

Magnification                                             : 1.4x

Optical Construction                               : 6 elements in 3 groups

Maximum Diameter                                : for Canon Ø70mm / for Nikon Ø62.6mm

Length[2]                                                         : for Canon, Nikon 0.8 in

Entire Length[3]                                            : for Canon 1.3 in (34.1mm) / for Nikon 1.3 in (32.3mm)

Weight                                                          : for Canon 7.2 oz / for Nikon 6.3oz

Standard Accessories                              : Mount cap, Rear cap, Lens case

Compatible Mounts                                 : Canon, Nikon


*Use of the TC-X14 tele converter reduces the effective aperture by one f/stop.



Model                                                            : TC-X20

Magnification                                             : 2x

Optical Construction                               : 9 elements in 5 groups

Maximum Diameter                                : for Canon Ø69.8mm /  for Nikon Ø62.3mm

Length[4]                                                         : for Canon, Nikon 2.1 in

Entire Length[5]                                            : for Canon 2.6 in (66.8mm) / for Nikon 2.6 in (65mm)

Weight                                                          : for Canon 12.7 oz / for Nikon 10.8oz

Standard Accessories                              : Mount cap, Rear cap, Lens case

Compatible Mounts                                 : Canon, Nikon


*Use of the TC-X20 tele converter reduces the effective aperture by two f/stops.


Specifications, appearance, functionality, etc. are subject to change without prior notice.




"New Eyes for Industry" is Tamron's philosophy. This creed is consistent with the company's position as a manufacturer of a wide range of original optical products, from interchangeable lenses for SLR cameras to various optical devices for both the general consumer and OEM. Tamron makes optical products that contribute to a range of different industries and will continue to devote its rich creativity and leading-edge technical prowess to various industrial fields. Furthermore, Tamron is fully aware of its responsibility to the environment and aspires to help preserve the natural environment in all of its business activities.


Optical Product Line-up:

Interchangeable lenses for SLR cameras, digital camera lenses, video camera lenses, lenses for automotive applications, IP and CCTV lenses, lenses for long wavelength infrared cameras, ultra-precision optical components and more.

[1] Compatible model is SP 150-600mm F/5-6.3 Di VC USD G2 (Model A022) (As of September 1; Tamron)

[2] Length is the distance from the front tip of the lens to the lens mount face.

[3] Entire Length is the distance between the tip of the lens and the tip of protrusion.

[4] Length is the distance from the front tip of the lens to the lens mount face.

[5] Entire Length is the distance between the tip of the lens and the tip of protrusion.