The Hasselblad H4D-40 Medium Format DSLR Camera Kit delivers unsurpassed image quality via an outstanding set of powerful features and precision optics. One of the most notable features in this dynamic camera is True Focus technology with Absolute Position Lock (APL) which allows you to capture close distance shots with a unique yaw sensor to measure angular velocity. The yaw sensor accurately measures and computes correct focus and makes it much easier to utilize selective focus to gain a shallow depth of field that is often desirable in commercial applications. The features of this camera meet the needs of professional photographers while on location or in the studio. The low noise color filter of the H4D-40's sensor provides for increased clarity and increased depth of field. The Hasselblad Natural Color Solution (HNCS) achieves consistent color reproduction using a single color profile, and digital lens correction perfects each image captured through HC/HCD lenses by removing any trace of distortion, vignetting, or chromatic aberrations.
The H4D-40 camera allows information from the lens and exact capture conditions to be fed to the camera processor for ultra-fine tuning of the auto-focus mechanism, taking into account the design specifications of the lens and the optical specifications of the sensor. In this way the full HC/HCD lens program is even further enhanced, bringing a new level of sharpness and resolution. Digital correction for color aberration and distortion is also added. Digital Lens Correction (DAC) is an automatic correction of the images based on a combination of the various parameters concerning each specific lens for each specific shot, ensuring that each image represents the best that your equipment can produce.
True Focus helps solve one of the most lingering challenges that face serious photographers today: true, accurate focusing throughout the image field. Hasselblad has used modern yaw rate sensor technology to measure angular velocity in an innovative way. The result is the new Absolute Position Lock (APL) processor, which forms the foundation of Hasselblad's True Focus feature. The APL processor accurately logs camera movement during any re-composing, then uses these exact measurements to calculate the necessary focus adjustment, and issues the proper commands to the lens's focus motor so it can compensate. The APL processor computes the advanced positional algorithms and carries out the required focus corrections at such rapid speed that no shutter lag occurs. The H4D's firmware then further perfects the focus using the precise data retrieval system found on all HC/HCD lenses.
Building on the success of the Audio Exposure Feedback technology, Hasselblad has created Instant Approval Architecture (IA), an enhanced set of feedback tools, designed to enable the photographer to focus on the shoot rather than the selection process. IA triggers audible and visual signals for each image captured, notifying the photographer immediately of its classification status. The information is recorded both in the file and in the file name, providing a quick and easy way to classify and select images, in the field or back at the studio. IA is a Hasselblad trademark and Hasselblad has a patent pending on the invention.
A simple lens with a slightly longer-than-normal perspective, the HC 100mm f/2.2 Lens from Hasselblad is an H system optic featuring an improved shutter unit to permit working with shutter speeds up to 1/2000 sec., with flash sync available at all speeds. Well-suited to portraiture, this lens' fast f/2.2 maximum aperture allows for extensive control over depth of field for producing selective focus imagery, and also benefits working in low-light conditions. A full focusing AF system offers quick performance, which can also be manually overridden for fine-tuned focusing control as closely as 3.0' away.
