Developed as the third generation of the renowned "Super
Field Camera" series, the new 645NII incorporates all the features of its
predecessor, the Pentax 645N, while incorporating several new features designed
to further improve performance, maneuverability and user convenience.
Many of the new features incorporated into the 645NII are a response to the
valuable suggestions and requests offered by enthusiastic 645N users, based on
their experiences in actual photographic sessions. Pentax believes these
added features will be extremely useful in a variety of applications and
situations, and will make the 645NII more responsive and user-friendly than its
predecessors for photographers around the world.
New features of the Pentax 645NII
1. Mirror-up function: A new mirror-up position has been added to the drive
mode dial. The first press of the shutter release button swings the mirror
up and locks it in place; the second press releases the shutter. This new
function avoids unwanted camera shake at shutter release and improves exposure
2. Choice of EV increments in exposure compensation and auto bracketing: In
exposure compensation and auto bracketing modes, the user now has a choice of
1/2EV or 1/3EV increments within a 3EV range. This allows the user to set
the desired compensation value far more easily to create the intended visual
3. A wider range of on-the-film imprinting information: The 645NII allows the
imprinting of a wider range of photographic data onto the film than was possible
with the 645N. The new data includes: total number of film rolls, focusing
mode, ISO film speed, use of the AE lock and/or auto bracketing functions, and
use of flash synchronization.
4. Improved Pentax Functions: The Pentax Functions, designed to allow
customiaation of some of the camera's basic functions to suit individual
preferences, are now more user-friendly than before. The user can select whether
or not the camera identification symbol is added to the on-the-film imprinting
data, so that a check can be made afterwards on which camera was used to take a
particular roll of film.