Archive for Lens Coating
You are browsing the archives of Lens Coating.
Sigma APO 120-400mm F4.5-5.6 DG OS HSM Telephoto Zoom Lens
Sigma has recently announced the launch of its new telephoto zoom lens, the APO 120-400mm F4.5-5.6 DG OS HSM. It comes equipped with optical image stabilizer and will be available in Sony and Pentax mounts.
The lens offers 150cm (59.1”) minimum focusing distance throughout its zoom range and 1:4.2 maximum magnification, so it can be used [...]
Canon EF-S 10-22mm f/3.5-4.5 USM Lens
Last updated (10 May’10):
- Review by BobAtkins.com
The Canon EF-S 10-22mm f/3.5-4.5 USM Lens is a compact, lightweight and robustly built super wide angle lens (equivalent to 16-35mm in 135mm format) for Canon digital camera with 1.6x crop factor featuring inner focusing, ring USM and new AF algorithms for fast and quiet autofocusing, three aspherical lens [...]
Sigma Announces New Lens for Sony / Pentax
Sigma has announced Sigma APO 150-500mm F5-6.3 DG OS HSM lens for Sony and Pentax DSLR users. The lens features Optical Stabilizer which allowing the use of shutter speeds approximately 4 stops slower, three SLD (Special Low Dispersion) glass elements provide excellent correction for chromatic aberration, a rear focus system that minimizes fluctuation of aberration [...]
How To Clean Your DSLR’s Sensor
Should you clean your sensor? That depends on what kind of cleaning you plan to do, and whose advice you listen to. Some vendors countenance only dust-off cleaning, through the use of reasonably gentle blasts of air, while condemning more serious scrubbing with swabs and cleaning fluids. These same manufacturers sometimes offer the cleaning kits [...]
