The Auto-focus is Extremely Slow...
Tamron SP AF 180mm f/3.5 Di LD IF Macro Lens
Imitating the design layout of the macro Tamron SP 90mm, trusted beloved by amateur and professional
photographers around the world, the AF 180mm f3.5 SP LD (IF) 1:1 Macro lens is a middle-range
telephoto that delivers an extended working distance required for some macro subject matter. In addition, to meeting the requirements of our dual-format world (digital and silver-halide), the lens' optical system is engineered to provide the most advantageous performance when used in conjunction the newest
cameras in addition to the 35mm
SLR cameras. Di (Digitally Integrated Design), a label that Tamron puts on all its lenses with optical layouts designed to enhance the operating characteristics of DSLR cameras.
This 180mm prime contains an internal focusing (IF) system that retains the overall lens length while focusing. it uses a pair of
low-dispersion (LD) glass elements to effectively diminish
chromatic aberrations. It features outstanding, high-contrast, image quality and delivers a soft
blurred-focus background (bokeh). A Super Performance (SP) array of lens series delivers high performance by using outstanding engineering specifications.
The Di-II 180mm lens provides a of 270mm. 35mm equivalent focal length when mounted on digital SLRs featuring 24mm x 16mm and smaller image sensors..
The auto-focus is extremely slow...
There must be plenty of light to obtain correct focus on your subject.
Nov 19, 2011
• Tamron macro lens series
The Tamron macro lens series produce sharp images against soft out-of-focus backgrounds. Not limited to
macro photography, these lenses cover the range from landscapes to portraiture. The Tamron macro lens series, with its wide-ranging adaptability, has achieved recognition among photography lovers around the world.
FEC (Filter Effect Control)
Features the new FEC (Filter Effect Control) function that enhances operational ease of
polarizing filter use. The new Filter Effect Control is designed to rotate the filter to the desired position while the hood is attached. This is accomplished by turning the FEC ring that in turn rotates the portion of the filter mount where the filter is mounted.
• DI - Digitally Integrated Design
ghosting, flare, CA and peripheral light fall-off along with improved resolution)
• Low Dispersion lens elements
Glass to reduce chromatic aberration for sharper images)
Aspherical - contains aspherical elements (compensates for
spherical aberration and distortion, making for better performance with fewer elements (and As a result allowing for smaller, lighter lenses)
• Internal Focusing
Internal focusing lens (also known as IF) is a
photographic lens design in which focus is shifted by moving the inner lens group or groups only, without any rotation or shifting of the front lens element. This makes it easy to use, for example, a screwed-in
polarizing filter or a petal shaped lens hood. During
macro photography, using an internal focus lens reduces the risk of the front of the lens accidentally hitting the subject during focusing as the front element does not move.
Lens hood, case & 6 Year USA Warranty