Sigma 18-300mm F3.5-6.3 DC HSM Macro C
|makernote ID:||data needed|
|D type lens:||Yes|
|AF Drive:||In Lens (HSM)|
|AF-D (a99 only):||No|
|angle of view:||76.5° - 5.4°|
|min. focus distance(mm):||386|
|filter rotate focusing:||No|
|filter rotate zooming:||No|
|max. magnification:||0.33x (1/3)|
|standard accessories:||Front and Rear Lens Caps, Lens Hood|
|features:||Optical Stabilizer (OS) is not available for the Sony and Pentax|
Search Ebay for
18-300mm F3.5-6.3 DC HSM Macro C
Excellent optical performance that satisfies experienced users
This lens incorporates 4 FLD (“F” Low Dispersion) glass elements, which have performance equal to fluorite plus 1 SLD (Special Low Dispersion) glass element. This minimises chromatic aberration, especially toward the telephoto-end, and provide clear image quality with high colour fidelity.
* FLD glass is the highest level low dispersion glass available with extremely high light transmission. This optical glass
has a performance equal to fluorite glass which has a low refractive index and low dispersion compared to current optical glass. It also benefits from high anomalous dispersion. These characteristics give excellent correction for residual chromatic aberration (secondary spectrum) which cannot be corrected by ordinary optical glass and ensures high definition and high contrast images.
Accumulated lens technology leads to superior image quality
The most appropriate optical glass elements are selected to optimize all focal lengths of the lens. From wide-angle to telephoto and macro ranges, it offers superior image quality throughout the entire zoom range. It compensates for the distortion very well, especially at the wide-end, and carries extraordinary expressive capability from the centre to the corners.
Newly Developed OS system
Renewed OS system for higher compensation
By reviewing the system construction and the algorithm of firmware, 3.5 stops of compensation has been achieved.
* Based on CIPA's guideline. Measuring at tele-photo end, when it is attached to the camera with APS-C image sensor.
A close-up lens is exclusively developed for this product (sold separately), which will not affect the optical performance of the original lens. It offers a maximum magnification ratio 1:2 and changeable angles of view enables zoom-macro photography.
Exclusive close-up lens (optional accessory)
The minimum focusing distance of the lens is 39cm, its maximum magnification ratio is 1:3 and the working distance is 14cm, which is similar to macro lenses. In addition to this, a close-up lens, AML 72-01 (sold separately), has been developed exclusively for this product. It ensures consistent rendering across the zoom range and enables higher performance in macro photography at 1:2. Even when this close-up lens is attached the image taken at maximum magnification ratio, at 300mm, infinity, shows very little difference in MTF performance.
* Focus is at infinity, and the recommended shooting range is 80-300mm.
Zoom-macro for enhanced macro photography
Just by rotating the zoom ring, it enables photographers to take close-up pictures of subjects such as jewellery and flowers. The maximum magnification ratio at respective focal lengths is indicated on the lens barrel, thus it is easy to see what the object size will be at the sensor. Furthermore, in order to secure a clear field-of-view, the design of this lens is very thorough, even down to the precise position of the engraved letters on the lens.
New product lines from SGV concepts that are setting new benchmarks for image quality
Latest technology for high optical performance and compactness
High performance line corresponding with various photography situations
SIGMA is organising all its interchangeable lenses into three product lines; Contemporary, Art and Sports. Among the three, the Contemporary line is a high performance line which incorporates the very latest technology making it possible to accommodate both high optical performance and compactness for use in various photography situations. Sigma has solved the difficult problem of keeping the size and weight down without compromising optical performance and function with the latest technology.
Evaluation with SIGMA’s own MTF measuring system “A1”
We used to measure lens performance with an MTF measuring system using conventional sensors. However, we’ve now developed our own proprietary MTF (modulation transfer function) measuring system (A1) using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of our quality control inspections. The SIGMA 18-300mm F3.5-6.3 DC MACRO OS HSM will all be checked using this “A1” before they are shipped.
SIGMA USB DOCK - Customizable to your needs
With the optional SIGMA USB DOCK and the dedicated special software “SIGMA Optimization Pro”, you can update your lens firmware, or adjust focus points by attaching this lens to a SIGMA USB DOCK connected to a computer.
Brass made bayonet mount
This lens incorporates a brass bayonet mount which has both high accuracy and durability. A special treatment to reinforce its strength is applied to the surface giving it greater strength and making it highly resistant to long-term use.
Newly Developed Hyper Sonic Motor
For comfortable and smooth use with the high zoom ratio, 16.6 times, it incorporates a bigger HSM (Hyper Sonic Motor) which is newly developed for this lens. It is powerful enough to ensure high speed and quiet AF.
Designed to minimise flare and ghosting
Flare and ghosting were thoroughly measured and monitored from the lens development stage to establish an optical design which is resistant to strong incidental light such as backlight. The Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images even in backlit conditions.
Incorporating Rounded Diaphragm
The 7 blade-rounded diaphragm creates an attractive blur to the out-of-focus areas of the image.