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Details and Specs
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By revolutionizing the optical and structural design of the Sigma 18-250mm F3.5-6.3 DC OS HSM, this new lens achieves a compact size and a minimum focusing distance of 13.8". New material, Thermally Stable Composite (TSC) maintains its structure and has little contractility especially in varying temperatures, is incorporated into the lens barrel. It is convenient when you wish to keep your equipment to a minimum and yet still be prepared for all opportunities and situations, such as travels.
A wide range of photography is possible in one lens
Covering wide angle 18mm to telephoto 250mm, this versatile lens designed exclusively for digital SLR cameras, is suitable for all-purpose photography including landscape, sport, and macro photography. It is convenient when you wish to keep your equipment to a minimum and yet still be prepared for all opportunities and situations, such as travels.
Excellent for macro photography
Close-up capability is improved with the minimum focusing distance of 13.8" throughout the entire zoom range, and maximum magnification ratio of 1:2.9. In APS-C size equivalent, macro photography with approximately 1:2 magnification ratio is possible. In addition, with this lens, the size and flaming of subjects can be adjusted by rotating a zoom ring, making macro photography easier than using fixed focal macro lens. For further convenience, the maximum magnification ratio at each focusing distance appears on the side of the lens barrel.
New design. Compact size.
Revolutionizing the design foundation results in compact size
Optimization of the power arrangement by such things as incorporating double-sided aspherical lenses, and reexamination of design, the filter diameter size is reduced. This compact size lens has the approximately 13x high zoom ratio with the filter size of diameter 62mm, and dimensions of diameter 2.9" x Length 3.5". It ensures portability and overall ease of use, making it perfect for travel and leisure photography.
New material TSC (Thermally Stable Composite)
Thermally Stable Composite
The new material "TSC (Thermally Stable Composite)", which has little contractility especially in temperature changes, as well as maintaining firmness, is incorporated into the lens barrel. Compared to Polycarbonate which is generally used, TSC has higher elasticity by approximately 25%. Since thermal shrinkage is low, it has high affinity to metal parts which contributes to high quality product manufacturing. It also contributes to the parts such as the zoom ring and scaling to be slimmer
In a conventional lens, focusing requires an extension of the entire lens or the front lens group. However, to better accommodate autofocusing mechanisms and closeup photography, a need has arisen for lenses that do not change their length during focusing or suffer from focus-dependent variation in aberration. Therefore, Sigma has developed focusing systems that only move elements within the lens barrel. These incorporate smaller and lighter moving lens elements which help improve auto-focus speed. With their unchanging barrel length and small variation in the center of gravity, these lenses also enhance balance and stability for the photographer. Furthermore, since the front of the lens does not rotate, polarizing filters can be used with extra convenience.
- 18-250mm focal length, only compatible with APS-C DSLRs
- Minimum Focusing Distance 35cm / 13.8in.Maximum Magnification - 1:2.9
- 27-375mm equivalent focal length on APS-C cameras, 28.8-400mm equivalent focal length on Canon APS-C cameras
- Micromotor-type AF motor with full-time manual focusing, Image stabilization.
Functional Condition – Excellent
We checked this item out for functionality & found it to be in excellent condition. When you get the item, it will have all features and functions fully operational.
Cosmetic Condition – Average
Cosmetically speaking, it looks to be in average cosmetic shape for an item of this type with a typical amount of cosmetic wear to a comparable item of its age and use as shown. To be more specific, here is what we noticed: Typical signs of normal use.