Pentax Z-1P

35mm AF film SLR camera


Production details
Announced:June 1994
Also known as:Pentax PZ-1P
System: Pentax K (1975)
Imaging plane
Maximum format:35mm full frame
Mount and Flange focal distance:Pentax K [45.5mm]
Imaging plane:36 × 24mm film
Model:Electronically controlled
Speeds:30 - 1/8000 + B
Exposure metering:Through-the-lens (TTL)
Exposure modes:Programmed Auto
Aperture-priority Auto
Shutter-priority Auto
Physical characteristics

Manufacturer description

TYPE: Through-the-Lens (TTL) autofocus, auto-exposure 35mm SLR with built-in TTL auto flash (RTF)

FORMAT: 24x36mm (13x36 in panoramic format)

USABLE FILM: 35mm perforated cartridge film. DX-coded film with ISO 25-5000; non-DX-coded film with ISO 6-6400

EXPOSURE MODE: (1) Hyper Programmed AE; (2) Programmed AE; (3) Shutter-Priority AE; (4) Aperture-Priority AE; (5) Hyper Manual; (6) Manual (Bulb); (7) 250 (1/250 sec.)

SHUTTER: Electronically controlled vertical-run focal-plane shutter. Electro-magnetic release. Shutter speed range: (1) Auto: 1/8000-30 sec. (stepless); (2) Manual: 1/8000-30 sec. (3) Bulb. Shutter lock by turning main switch off

LENS MOUNT: Pentax KAF2 bayonet mount (K-mount with AF coupler, lens information contacts and power contacts)

COMPATIBLE LENS: Pentax KAF2-, KAF-, KA-, and K-mount lenses are usable. Autofocus is possible using AF Adapter with KA- mount lenses are usable

AUTOFOCUS SYSTEM: TTL phase-matching system (SAFOX II). AF operational brightness range: EV -1 to 18 (at ISO 100 with f/1.4 lens). Focus lock available using shutter release button in AF single mode, Focus mode: AF single, AF Servo (predictive AF provided) and Manual

POWER ZOOM: 3-speed Intelligent Power Zoom lens with built-in motor. (1) Power zoom (2) Image-Size Tracking (3) Zoom Clip and (4) Auto Zoom Effect when combined with an FA zoom lens

VIEWFINDER: Pentaprism finder, Interchangeable Natural-Bright-Matte focusing screen. Field of view: 92%, Magnification: 0.8X (with 50mm lens at infinity), Diopter adjustment: -2.5 to +1.5 diopters. Panorama format frame. Spot metering area frame

VIEWFINDER LED & LCD INDICATION: Focus information: in-focus (green lamp is lit), front or back focus signals and unable-to-focus indicator (green lamp blinks)/Shutter speed in range from 1/8000 to 30sec/Aperture value from f/1.2 to 90/Dedicated flash ready indication is lit, RTF ready indication is lit, Flash-recommended display or inappropriate lens warning blinking, Bar graph (exposure compensation value, discharging flash light compensation value, autobracketing value/manual mode: over exposure and underexposure indication, discharging flash light compensation value indication, exposure compensation indication, memory lock, multi-segment(8) metering indication, spot metering indication, center-weighted indication, panorama indication

EXTERNAL LCD PANEL INDICATION: [HyP] = Hyper Programmed AE, [P] = Programmed AE, [A] = Shutter-Priority AE, Aperture-Priority AE, [HyM] = Hyper Manual, [Bu] = Bulb, (250) - Shutter speed = 1/250 sec, Image Size Tracking, Zoom Clip, Auto Zoom Effect, Shutter speed = 1/8000-30s, Aperture value = 1.2-90, film speed = 6-6400, ISO indication, Bulb timer = 1s-59s, 1m-59m (blinking 1-59), Exposure compensation value with flash = -3 to +1, Autobracketing / Exposure compensation value = -4 to +4, Multi-exposure counter = 2 to 9, Bar graph = Exposure compensation value, Exposure compensation with flash, Auto exposure compensation value, Over or under exposure indication in manual mode, Exposure compensation, film status information, Battery exhaustion warning, Film counter = 0-99, Red-eye reduction flash mode, Built-in RTF flash ready indication blinking slowly - Flash recommended display blinks rapidly = inappropriate lens warning, Exposure compensation value with flash, trailing shutter-curtain sync flash, Multi(8)-segment metering, Center-weighted metering, Spot metering, Pentax function, PCV signal indication, Single-frame shooting, Consecutive shooting, Self-timer shooting, Self-timer with 2-sec. delay, Triple-frame self-timer, Autobracketing, Tv value, Av value, Tv indication, Av indication, Multi-exposure illuminator for LCD panel (10 sec)

SELF-TIMER: Electronically-controlled type with delay time of 12 sec. Start by depression of shutter release button. Operation confirmation: by red lamp blinking, PCV beep tone and LCD panel (Self-timer indication counts in reverse), Cancelable after operation, 2-sec. mode, 3 consecutive exposures

MIRROR: Quick-return mirror with AF secondary mirror

FILM LOADING: Film advance automatically to 1st frame after the back cover is closed. Film information window is provided

FILM WIND & REWIND: Auto wind/rewind and auto rewind stop by built-in motor. Consecutive or single advance mode. Approx. 4 frames/sec. (continuous mode), Auto rewinding starts at end of roll. Film rewinding/completion of rewinding is displayed on the LCD panel. Mid-roll rewind provided

EXPOSURE METER: TTL multi(8)-segment metering. Metering range from EV0 to EV20 at ISO 100 with 50mm f/1.4 lens. Center-Weighted and Spot Metering can be set

EXPOSURE COMPENSATION: +/-4 EV in 0.3 step increments, Bar-graph indication in the range from -2EV to +2EV in 0.3EV increments

AUTO BRACKETING: Three frame consecutive shots with exposure bracketing from +/-0.3EV to +/-4EV. Possible to use with exposure compensation, Auto bracketing with manual exposure, Auto bracketing with discharging the flash light

MEMORY LOCK: Set by ML button. Exposure value remains locked as long as ML button is depressed. With the shutter release button is halfway depressed, the exposure value remains continuously

FLASH: Series-control Retractable TTL Auto Flash (RTF). Guide number: 14 (ISO 100/m). Illumination angle: covers 28mm lens angle of view. Flash-sync-speed: 1/250 or slower. Day-light sync; Trailing-shutter-curtain sync, Red-eye reduction function, Exposure compensation with the flash, Contrast-control-flash-sync, iSO range = 25-800

FLASH SYNC: Hot shoe with X-contact which couples with Pentax dedicated auto flashes. Possible to compensate the exposure with variable discharge of the flash light

POWER SOURCE: One 6V lithium battery (2CR5)

BATTERY EXHAUSTION: Battery exhaustion symbol is lit (blinking when the shutter is locked; no indication on the right-hand edge of the viewfinder)

PENTAX FUNCTIONS: 15 user-defined functions

BACK COVER: Interchangeable

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35mm full frame

43.27 24 36
  • Dimensions: 36 × 24mm
  • Aspect ratio: 3:2
  • Diagonal: 43.27mm
  • Area: 864mm2

Travellers' choice


Among autofocus lenses designed for 35mm full-frame mirrorless cameras only. Speed of standard and telephoto lenses is taken into account.

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Image stabilizer

A technology used for reducing or even eliminating the effects of camera shake. Gyro sensors inside the lens detect camera shake and pass the data to a microcomputer. Then an image stabilization group of elements controlled by the microcomputer moves inside the lens and compensates camera shake in order to keep the image static on the imaging sensor or film.

The technology allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without image stabilizer you have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.

Original name

Lens name as indicated on the lens barrel (usually on the front ring). With lenses from film era, may vary slightly from batch to batch.


Format refers to the shape and size of film or image sensor.

35mm is the common name of the 36x24mm film format or image sensor format. It has an aspect ratio of 3:2, and a diagonal measurement of approximately 43mm. The name originates with the total width of the 135 film which was the primary medium of the format prior to the invention of the full frame digital SLR. Historically the 35mm format was sometimes called small format to distinguish it from the medium and large formats.

APS-C is an image sensor format approximately equivalent in size to the film negatives of 25.1x16.7mm with an aspect ratio of 3:2.

Medium format is a film format or image sensor format larger than 36x24mm (35mm) but smaller than 4x5in (large format).

Angle of view

Angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view.

As the focal length changes, the angle of view also changes. The shorter the focal length (eg 18mm), the wider the angle of view. Conversely, the longer the focal length (eg 55mm), the smaller the angle of view.

A camera's angle of view depends not only on the lens, but also on the sensor. Imaging sensors are sometimes smaller than 35mm film frame, and this causes the lens to have a narrower angle of view than with 35mm film, by a certain factor for each sensor (called the crop factor).

This website does not use the angles of view provided by lens manufacturers, but calculates them automatically by the following formula: 114.6 * arctan (21.622 / CF * FL),


CF – crop-factor of a sensor,
FL – focal length of a lens.


A lens mount is an interface — mechanical and often also electrical — between a camera body and a lens.

A lens mount may be a screw-threaded type, a bayonet-type, or a breech-lock type. Modern camera lens mounts are of the bayonet type, because the bayonet mechanism precisely aligns mechanical and electrical features between lens and body, unlike screw-threaded mounts.

Lens mounts of competing manufacturers (Canon, Nikon, Pentax, Sony etc.) are always incompatible. In addition to the mechanical and electrical interface variations, the flange focal distance can also be different.

The flange focal distance (FFD) is the distance from the mechanical rear end surface of the lens mount to the focal plane.

Lens construction

Lens construction – a specific arrangement of elements and groups that make up the optical design, including type and size of elements, type of used materials etc.

Element - an individual piece of glass which makes up one component of a photographic lens. Photographic lenses are nearly always built up of multiple such elements.

Group – a cemented together pieces of glass which form a single unit or an individual piece of glass. The advantage is that there is no glass-air surfaces between cemented together pieces of glass, which reduces reflections.

Focal length

The focal length is the factor that determines the size of the image reproduced on the focal plane, picture angle which covers the area of the subject to be photographed, depth of field, etc.


The largest opening or stop at which a lens can be used is referred to as the speed of the lens. The larger the maximum aperture is, the faster the lens is considered to be. Lenses that offer a large maximum aperture are commonly referred to as fast lenses, and lenses with smaller maximum aperture are regarded as slow.

In low-light situations, having a wider maximum aperture means that you can shoot at a faster shutter speed or work at a lower ISO, or both.

Closest focusing distance

The minimum distance from the focal plane (film or sensor) to the subject where the lens is still able to focus.

Closest working distance

The distance from the front edge of the lens to the subject at the maximum magnification.

Magnification ratio

Determines how large the subject will appear in the final image. For example, a magnification ratio of 1:1 means that the image of the subject formed on the film or sensor will be the same size as the subject in real life. For this reason, a 1:1 ratio is often called "life-size".

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Electronic manual focus override is performed in the following way: half-press the shutter button, wait until the camera has finished the autofocusing and then focus manually without releasing the shutter button using the focusing ring.

Electromagnetic diaphragm control system

Provides highly accurate diaphragm control and stable auto exposure performance during continuous shooting.

Manual diaphragm

The diaphragm must be stopped down manually by rotating the detent aperture ring.

Preset diaphragm

The lens has two rings, one is for pre-setting, while the other is for normal diaphragm adjustment. The first ring must be set at the desired aperture, the second ring then should be fully opened for focusing, and turned back for stop down to the pre-set value.

Semi-automatic diaphragm

The lens features spring mechanism in the diaphragm, triggered by the shutter release, which stops down the diaphragm to the pre-set value. The spring needs to be reset manually after each exposure to re-open diaphragm to its maximum value.

Automatic diaphragm

The camera automatically closes the diaphragm down during the shutter operation. On completion of the exposure, the diaphragm re-opens to its maximum value.

Fixed diaphragm

The aperture setting is fixed at F/ on this lens, and cannot be adjusted.

Number of blades

As a general rule, the more blades that are used to create the aperture opening in the lens, the rounder the out-of-focus highlights will be.

Some lenses are designed with curved diaphragm blades, so the roundness of the aperture comes not from the number of blades, but from their shape. However, the fewer blades the diaphragm has, the more difficult it is to form a circle, regardless of rounded edges.

At maximum aperture, the opening will be circular regardless of the number of blades.


Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

Maximum diameter x Length

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

For lenses with collapsible design, the length is indicated for the working (retracted) state.

Weather sealing

A rubber material which is inserted in between each externally exposed part (manual focus and zoom rings, buttons, switch panels etc.) to ensure it is properly sealed against dust and moisture.

Lenses that accept front mounted filters typically do not have gaskets behind the filter mount. It is recommended to use a filter for complete weather resistance when desired.

Fluorine coating

Helps keep lenses clean by reducing the possibility of dust and dirt adhering to the lens and by facilitating cleaning should the need arise. Applied to the outer surface of the front and/or rear lens elements over multi-coatings.


Lens filters are accessories that can protect lenses from dirt and damage, enhance colors, minimize glare and reflections, and add creative effects to images.

Lens hood

A lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background.

The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood.

Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens.

Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.


Teleconverters increase the effective focal length of lenses. They also usually maintain the closest focusing distance of lenses, thus increasing the magnification significantly. A lens combined with a teleconverter is normally smaller, lighter and cheaper than a "direct" telephoto lens of the same focal length and speed.

Teleconverters are a convenient way of enhancing telephoto capability, but it comes at a cost − reduced maximum aperture. Also, since teleconverters magnify every detail in the image, they logically also magnify residual aberrations of the lens.

Lens caps

Scratched lens surfaces can spoil the definition and contrast of even the finest lenses. Lens covers are the best and most inexpensive protection available against dust, moisture and abrasion. Safeguard lens elements - both front and rear - whenever the lens is not in use.