True Focus and Absolute Position Lock

True Focus helps solve one of the most lingering challenges that faces serious photographers today: true, accurate focusing through- out the image field. Without multi-point auto-focus a typical auto- focus camera can only correctly measure focus on a subject that is in the center of the image. When a photographer wants to focus on a subject outside the center area, they have to lock focus on the subject and then re-compose the image. In short distances espe- cially, this re-composing causes focus error, as the plane of focus sharpness follows the camera’s movement, 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. These sensors allow the photographer to fix an off-center focus point on an off-center sub- ject, which is then focused correctly. Such multi-point AF solutions are often tedious and inflexible to work with. Due to the physics of an SLR-camera, the off-center focus points that are offered are all clustered relatively close to the center of the image. To set focus outside of this center area, the photographer is still forced to focus first, and then shift the camera to reframe, with the 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 of Hasselblad’s True Focus feature.

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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 H5D’s firmware then further perfects the focus using the precise data retrieval system found on all H System lenses.

The plane of focus changes when the camera is tilted for composition.

The middle image shows the result when not using True Focus. While this image looks relatively sharp, the rightmost image where True Focus has been used, is razor sharp.

Photo: Marcel Pabst

www.hasselblad.com

3023035, 3023028 specifications

The Hasselblad 3023028 and 3023035 are exceptional medium format digital camera models that exemplify the precision engineering and iconic design associated with the Hasselblad brand. Renowned for their high-quality imaging capabilities, these cameras are well-suited for professional photographers and serious enthusiasts alike.

At the heart of both models is the robust CMOS sensor system, which significantly enhances image quality. The 3023028 boasts a large 50-megapixel sensor, while the 3023035 takes it a step further with a 100-megapixel option. The higher resolution of the 3023035 allows photographers to capture intricate details with stunning clarity, making it ideal for commercial photography, fine art, and landscape photography.

Both cameras feature Hasselblad's unique Phocus software, which aids in efficient image processing and workflow management. The software emphasizes the natural color reproduction and dynamic range that Hasselblad is known for. Photographers can take advantage of the vibrant colors and smooth tonal transitions produced by the extraordinary sensor capabilities.

Another defining characteristic of the 3023028 and 3023035 is their modular design. Each camera can be used with a range of Hasselblad lenses, providing versatility for different shooting scenarios. The extensive lens selection includes wide-angle, standard, and telephoto options, allowing photographers to achieve their desired perspective with ease. The cameras also support a range of shooting formats, including portrait and landscape orientation, giving photographers flexibility in composition.

The build quality of both models is impressive, featuring a weather-sealed body that protects against dust and moisture. This durability makes them suitable for outdoor and challenging shooting environments. Additionally, the cameras are equipped with an advanced autofocus system that ensures fast and accurate subject tracking, enhancing performance in dynamic shooting conditions.

An intuitive touchscreen interface provides easy access to camera settings and allows photographers to navigate through the menu system swiftly. The ergonomic design contributes to a comfortable shooting experience, even during extended sessions.

In summary, the Hasselblad 3023028 and 3023035 are remarkable cameras that reflect the brand's legacy of quality, precision, and innovation. With their advanced sensor technologies, modular versatility, and outstanding build quality, these models continue to set the standard for medium format photography. Whether for professional use or passionate hobbyists, these cameras empower photographers to elevate their craft and capture images with unparalleled detail and artistry.