Tamron SKU: TCX14C-700 | Helix SKU: TRTCX14C700
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 tele converters 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.
|Optical Construction||6 elements in 3 groups|
|Maximum Diameter||φ70mm Canon
|Length**||21.4mm (0.8 in) Canon and Nikon|
|Entire Length***||34.1mm (1.3 in) Canon
32.3mm (1.3 in) Nikon
|Weight||205g (7.2 oz) Canon
180g (6.3 oz) Nikon
|Standard Accessories||Mount cap, Rear cap, Lens case|
|Compatible Mounts||Canon, Nikon|
Specifications, appearance, functionality, etc. are subject to change without prior notice.
* Use of the TC-X14 tele converter reduces the effective aperture by one f/stop.
** Length is the distance measured from the camera mount face to the lens mount face.
*** Entire Length is the distance between the tip of the lens and the tip of protrusion.