Creates a Perspective Far Beyond the Conventional Ultra-wide
The optical system of the SP AF14mm F/2.8 Aspherical (IF) lens, composed of 14 elements in 12 groups, includes two Hybrid
Aspherical lens elements. These large Hybrid Aspheric elements efficiently compensate for
aberrations As a result achieving flat-field image depiction from corner to corner. With a fast
F/2.8 aperture and a sophisticated optical system,
photographers can create dynamic
photographs that take full advantage of the rectangular characteristics of the lens.
The 14mm f/2.8 lens provides approximately the 35mm equivalent of 21mm on digital SLRs with24mm x 16mm or smaller size imagers.
The Tamron SP AF14mm f2.8 Aspherical IF is an ultra
lens that creates a perspective far beyond the conventional ultra-wide. With its larger
f/2.8 aperture, the main subject practically jumps out of the image. By using two Hybrid Aspherical lens elements, this lens delivers high quality images with minimal light fall off at the image corners. To optimize handling, the lens incorporates a push/pull AfMF switchover mechanism on the focus ring.
Hybrid aspherical elements provide the ultimate in compactness and image quality
Through application of Tamron's exclusive Hybrid Aspherical technology (which can take the place of multiple optical elements) to LD glass, a never-before-possible level of image quality and compactness has been attained.
Internal Focusing System
Aside from enhancing lens maneuverability, Tamron's Internal
Focusing System provides additional benefits to users. Chief among them is a reduced Minimum Object Distance (M.O.D.) throughout its entire focal length range. Additionally, it improves optical characteristics by minimizing illumination loss at image corners and suppresses aberrations that are caused by focusing positions. Another benefit of Internal Focusing is a stationary focusing ring--regardless of the focusing action. Quick and subtle manual focus adjustments are now a snap.
Autofocus/manual focus change over mechanism for focusing ring
The lens is equipped with a one-touch focus switching mechanism. This allows the focus mode to be switched with a simple push/pull movement. And the large focusing ring is easy to grip for smooth effortless focusing.
Gelatin filter holder
The lens comes equipped with a gelatin
filter holder at the rear element of the lens. Your photographic retailer can provide you with a wide variety of gelatin filters for color correction or special effects.
SP for "Super Performance"
Tamron's SP-series lenses are designed to achieve top optical performance. Ground breaking design concepts give these lenses unsurpassed image quality and ease of use while setting new standards for future generations of lenses.
Construction: 12 Groups/ 14 Elements
Angle of view: 113.8°
F stop range: 2.8-22
Closest Focusing Distance: 7.8"
Maximum Magnification: 1:6.5
Filter Size: Gelatin filters can be placed on the rear section of lens
Dimensions: (Length x Diameter) 3.5in. (89mm)
Weight: 23.3oz (661g)
Focusing: Internal, 2 Hybrid Aspherical lens elements
for ultra wide it is the only way to go? for the price i paid it was awesome deal. sharper at f8-f11 than a pentax 20mm 2.8 which suprised me as the other is a great lens. softer at f 2.8 - f5.6 kills the sigma for performance athough photodo disagrees. i will give it 5 stars for value as i got it less than half price. three for quality
very sharp at 5.6 to f 11 great contrast and colors the view build quality is the best for a tamron except the ld 400mm sp f4 and 80-200mm ld sp 2.8
the flare - the front element is so huge that flare is a huge problem-stopping down wont help however a flare buster will if you dont mind cropping it out of the final pic. however as the sun reaches the horizon this lens excells. lots of distortion - in the effort to stop it fisheyeing there is a lot of stretching. i would prefer less stretching and a little curves its no pentax fa 24mm f2.0 in contrast and color. crappy hood