Hasselblad H4D-60, H4D-50MS, H4D-40 manual Intelligent Tilt and Shift

Hasselblad DSLR Advantage: Focusing and Composing

Photo: Marcel Pabst

If there is no difference between 35mm DSLRs and Medium Format DSLRs, then why do so many of the world’s leading photographers

still choose to invest in a Hasselblad system?

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Photo: Kevin Then

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A New Approach to Close-

Up Focusing - True Focus and

Absolute Position Lock

True Focus helps solve one of the most lingering chal- lenges in the photographic world: achieving true, accu- rate focusing throughout the image. Without multi-point auto-focus a typical AF camera can only correctly focus on a subject that is in the center of the image. If you want to focus on a subject outside the center, you must first lock focus on the subject and then re-compose the image. At short distances this re-composing causes focus error, as the plane of focus follows the camera’s move- ment, perpendicular to the axis of the lens.

The traditional solution for most DSLR cameras has been to equip the camera with a multi-point AF sensor which allows the photographer to fix an off-center focus point. Such multi-point AF solutions are often tedious and inflexible to work with and due to the physics of SLR cameras, the off- center focus points are all clustered relatively close to

the image center. To set focus outside of this center area, you are still forced to focus first, then shift the camera to reframe, with resulting loss of focus as a result.

To overcome this problem, 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 our new 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 refines the focus using the precise data retrieval system found on all HC/HCD lenses.

Even More Accurate Focusing for Photo Pros The H4D-40 provides noticeably shallower depth-of-field performance compared to 35mm DSLRs at same aperture. This pro- vides for more accurate composing and focusing, especially when combined with the new True Focus technology. The H4D-40 also provides photographers with two basic tilt and shift options - a classic view camera solution and the simple-to-use, portable HTS tilt/shift adapter.

Intelligent Tilt and Shift

As if the H4D’s ability to communicate with all Hasselblad lenses and accessories was not enough, when you add the Hasselblad HTS 1.5 tilt/shift adaptor, your system’s IQ goes up another few points. Precise sensors on all the HTS’s moving parts continually­

communicate with the camera engine, ensuring that all shots are tagged with the information needed by the DAC function to refine your Tilt and Shift images when they are processed, ensuring maximum crea- tive flexibility and uncompromising image quality even at the very edge of the image field when shifted, rotated and tilted to maximum. The HTS 1.5 gives you a portable tilt/shift solution for the HC/HCD lens range from 28mm to 100mm, in effect providing a tilt and shift lens solution at each focal length.

Size Still Matters #2:

True Focus for Accurate

Composing at Close Distance

The large format of the H System cameras provides considerably shallower depth of field than 35mm DSLR cameras, making it much easier to utilize selective focus to creative effect.

In addition, True Focus further refines close range Auto-Focus for extremely accurate re-composing at close distance. You can now feel safe when working creatively with shallow depth-of-field.