First-ever Ultra Wide-angle 10-24mm Focal Length Range
This ultra wide-angle zoom lens for digital SLR cameras, with the first-ever focal length range of 10-24mm.The 35mm equivalent of 16mm ultra wide-angle to 37mm semi-wide-angles a perfect tool for creating dramatic landscape, cityscape, and seascape imagery. At the ultra wide-angle setting, you'l be able to capture vistas beyond what the eye can see. At the semi-wide-angle setting, you'll capture scenes with angles of view almost as spectacular. Building on Tamron existing ultra wide-angle zoom lens (11-18mm F/4.5-5.6), this versatile lens expands the focal length range and enhances the maximum aperture a lightweight, compact form.
Large-aperture Glass-molded Aspherical Lens Elements Deliver High-Quality Imagery
The optical system within this zoom lens uses three large-aperture glass-molded aspherical lenses, as well as three hybrid aspherical lenses, which minimize spherical aberrations, coma, and distortion. This lens has earned its place within Tamron SP (Super Performance) series.
The close focusing capability of this lens lets you capture images with an exaggerated perspective at the 10mm ultra wide-angle end or shoot with a maximum magnification ratio of 1:5 at the 24mm semi-wide-angle setting. You will enjoy the freedom of creating close-ups at the minimum focusing distance of 0.24m throughout the zoom range.
|Angle of View
(Equivalent to APS-C size)
| Diagonal: 108゜44' - 60 ゜20'
Horizontal: 98 ゜28' - 51 ゜36'
Vertical: 75゜19' - 35 ゜29'
|Lens Construction||12 elements 9 groups|
|Minimum Focus Distance||0.24m (9.3")|
|Max.Mag.Ratio||1 : 5.1 (at f=24mm, MFD : 0.24m)|
|Overall Length||86.5mm (3.9")*|
|Maximum Diameter||φ83.2mm (3.1")|
|Standard Accessory||Flower-shaped hood, Lens caps|
|Compatible Mount||Pentax, and Sony|
* Values given are for Nikon cameras.
** Nikon mount has a built-in AF motor.
For Nikon with Built-In Motor ; 2008 / 10 / 23*
For Canon : 2009 / 03 / 03*
For Pentax and Sony : 2009 / 06 / 12*
* Date of launch in Japan
MTF (Modulation Transfer Function) curves describe to what extent the tested lens can faithfully reproduce contrast of the subject in images it captures.
The closer the 10 lp/mm (line pairs per millimeter) curve (the thick line for low frequency) in an MTF chart to "1" of the vertical axis (the higher up), the higher the contrast reproduction performance of the tested lens will be. The closer the 30 lp/mm curve (the thin line for high frequency) to "1" (the higher up), the higher the resolving power and thus the subjective sharpness of the lens will be.
Lens performance differs depending upon directions. Solid lines show performance in the sagittal (radial) direction while dotted lines indicate performance in the meridional (circumferential) direction. When sharp lenses capable of delivering uniform optical performance over the entire image field are tested, MTF charts show curves plotted in good balance.
Performance characteristics of photographic lenses cannot be expressed with only MTF charts. There are other factors that are expressed in different methods, such as taste of softness and degrees of compensation of various aberrations. But you can use MTF charts as a scale to measure lens performance.