AP 50th Aniv.

AP 50th Aniv.

General Description

The year 2007 marks the 50th anniversary of the Asahi Pentax (AP) camera and in memory of this fact Pentax built a design study model based on Pentax K10D. The original AP was the first camera to feature a pentaprism and was the first body in Pentax’s history. This is surely the reason why the AP 50th Aniv. body features such a prominent and “old-fashioned” viewfinder.

There is just one prototype of the AP 50th Aniv. body, and on 19 October, 2007 I was able to see it and photograph it. Since it is a prototype, however, I was unable to photograph with it. Since the AP 50th Aniv. body is heavily based on the K10D (except for the lack of a built-in flash), I’ve listed as features of the K10D as features of the AP 50th Aniv. body. Apparently the prototype is really just for celebrating the 50th anniversary, and Pentax has no plans to build the body, not even in a small batch.

Product Information
Exact Name AP 50th Aniv.
Color silver-black
Year of Introduction 2007

Technical Specifications

Lens Mount "crippled" KAF2
Mount Limitations digital A aperture or metered manual only
AF System (sensitivity) SAFOX VIII, 11 sensors (0 ~ 19 EV)
AF with supersonic lenses yes
Power-Zoom Features auto-lens retract, power zoom
Self-Timer 12 / 2 sec
Mirror Lock-Up
Cable Release CS-205
Infra-Red Release remote control F
Custom Functions 32
Additional Features weather sealed, DOF preview, mirror lock-up
Width x Height x Depth 141.5 x 101 x 70 mm
Weight unknown
Image Sensor
Effective Pixel Count 10.2 megapixel
Sensor Type CCD
Sensor Size 15.7 x 23.5 mm
Focal-Length Multiplication Factor 1.53 x
Image Storage
Data-Storage Formats RAW (DNG, PEF), RAW + JPG, JPG
Storage Media Secure Digital (SD and SDHC)
Digital Features
Shake Reduction yes
Dust Removal yes
Live View
Orientation Sensor yes
Exposure System
Exposure Modes Av, HyM, HyP, P, Pgreen, Sv, TAv, Tv
Metering Modes with K and M Lenses center-weighted, spot
Metering Modes with A and newer Lenses 16-segment, center-weighted, spot
Meter Material SPD
Exposure Compensation (Step) +/-3 (1/2 EV steps)
+/-2 (1/3 EV steps)
Exposure Lock yes
Meter Range 0 ~ 21 EV
ISO Range 100 ~ 1600 ASA
Construction electronic (vertical)
Material metal
Shutter Speeds 30 ~ 1/4000, B
Mechanical Speeds
Magnification [Coverage] 0.95x [95%]
Aperture Indication LED
Shutter-Speed Indication LED
Interchangeable Screens yes
Power Source
Batteries 1 x Lithium-Ion D-LI50 rechargeable
External Battery Grip D-BG2
Continuous Shooting
Continuous Shooting 3 frames per second
Flash System
Command Protocol(s)
Features HS, P-TTL
Synchronization Speed(s) 1/180 ~ 30, B
Built-In Flash
Fitting Case(s) unknown