Wednesday, August 27, 2014



 Hi Photographer friends,

Denver, Colorado August 27, 2014 – Focused on expanding the number of PENTAX

DSLR owners, RICOH IMAGING AMERICAS CORPORATION is excited to announce the launch

of the PENTAX K-S1 DSLR camera. By combining proven imaging technology, distinct design

cues and a flat field user interface (UI) the K-S1 appeals to the next generation PENTAX owner

without surrendering the performance expected in a mid-class camera.

Building on the many technologies benchmarked in the company’s popular K-3 advanced

DSLR; the K-S1 incorporates a newly designed 20 megapixel image sensor, super-high

sensitivity ISO 51200. In addition this model contains in-body shake reduction, an AA filter

simulator, 100% field of view glass pentaprism viewfinder, and 5.4 frames per second shooting

at a fast 1/6000 shutter speed. Adding to the user experience is the camera’s unique flat field

user interface, which integrates a back-lit LED selection dial, four-way navigation, and a bright

3” 921,000 dot LCD that breaks tradition of the knobs and buttons found on traditional DSLR


The PENTAX K-S1 is designed to attract a mid-level customer who is accustomed to a

mobile interface and is looking for a similar interaction in a DSLR. The simple UI eliminates many

of the complexities of a DSLR and provides immediate feedback including shooting parameters,

filter selection and effect modes, even in total darkness. The camera’s power switch, mode

dial, OK button and grip all feature LED illumination; each of which indicates the current status

of camera operation. This intuitive UI and design combined with category leading technology

delivers a powerful imaging engine that is simple to use.

 “With the K-S1 we are building on our solid reputation as a camera company and

inviting new customers to experience the PENTAX advantage” said Jim Malcolm, Executive

Vice President, Ricoh Imaging Americas Corporation. “Our core PENTAX products provide an

important foundation that the K-S1 builds upon.”

The optional Flucard for PENTAX offers additional features such as Wi-Fi transfer,

wireless live view, and Remote Capture control; letting users take control of their camera

settings with a smartphone, tablet, or computer and save images directly to a mobile


The K-S1 comes in 3 standard colors: black, blue, and white. In addition, two separate

color collections are available; The Fabric Collection, containing 4 unique colors such as cotton

beige and tweed gray – and the Night Sky Collection, with 5 more elegant colors like Sunset

Orange, Dawn Purple, and Midnight Black.

To view our accompanying PENTAX K-S1 Lifestyle video

 please click on the following link:

Pricing and Availability

The PENTAX K-S1 kit including an 18-55 mm lens will be available at retailers

nationwide and at in September 2014 for a suggested retail price of

$799.95. The K-S1 body only will be available for $749.95.


Main Features

• Illuminated Interface for intuitive camera operation

The PENTAX K-S1’s power switch, mode dial, OK button and grip all feature LED illumination;

each of which indicates the current status of camera operation. The LEDs for the power switch,

for instance, stay green during still-image shooting, but change color to red during movie

recording. When the Face Detection function is activated, the number of LEDs illuminated on

the grip corresponds with the number of faces that have been detected. The grip LEDs also act

as a countdown timer during self timer operation. This LED body illumination gives a decorative

illumination to the choice of distinctive body colors; furthering the look of the camera as a

sophisticated digital device.

• Compact, lightweight body with distinctive design

The K-S1 camera body’s main chassis, including the grip, is designed to be compact in size

and sophisticated in appearance, while the pentaprism employs a solid, time-proven design that

easily matches high-grade SLR cameras. By harmonizing these dissimilar elements, the K-S1

delivers a body design that is totally original and remarkably fashionable.

Note: This product design was developed in collaboration with and under supervision for

design and color of Ziba Tokyo, Co., Ltd., the Tokyo branch of a design consultant firm Ziba,

headquartered in Portland, Oregon, USA, and with other branches in Munich and San Diego.

• High-resolution images produced by the 20.12 megapixel CMOS sensor with a super-
high sensitivity of ISO 51200

The K-S1 is equipped with a newly developed CMOS image sensor with approximately 20.12

effective megapixels to deliver super-high-resolution images. It is also designed without an

optical AA (anti-aliasing) filter to optimize the imaging power of the sensor. By coupling this

image sensor with the high-performance PRIME MII imaging engine, the K-S1 delivers true-to-
life, detailed images by effectively minimizing noise at all sensitivity levels, even during super-
high-sensitivity shooting at ISO 51200.

• In-body shake reduction (SR) mechanism, and AA (anti-aliasing) filter simulator for

effective moiré reduction

(1) In-body SR (Shake Reduction) mechanism

The K-S1 features the PENTAX-developed SR (Shake Reduction) mechanism to effectively

minimize camera shake and assure sharp, blur-free images, even in camera-shake-prone

conditions such as when using a telephoto lens, shooting low-light scenes with incident light only,

or photographing sunset scenes.

(2) Innovative AA (anti-aliasing) filter simulator*

By applying microscopic vibrations to the image sensor unit at the sub-pixel level during image

exposure, the K-S1’s AA filter simulator provides the same level of moiré-reduction effect as an

optical AA filter. Unlike an optical AA filter, which always creates the same result, this innovative

simulator lets the user not only switch the AA filter effect on and off, but also adjust the level of

the effect

(3) ASTRO TRACER support

The K-S1’s SR unit has a flexible design that shifts the image senor horizontally (left/right),

vertically (up/down), and rotationally. Taking advantage of this flexibility, the K-S1 provides a host

of handy shooting functions, including ASTRO TRACER, which simplifies advanced astronomical

photography in combination with the optional GPS unit, O-GPS1.

* This function is most effective with a shutter speed of 1/1000 second or slower. This function is

not available during HDR (High Dynamic Range) shooting.

• Optical viewfinder with 100-percent field of view

The K-S1 is equipped with a glass pentaprism finder featuring the same optics and coatings

as those used in higher-level models. It assures the highest level of viewfinder brightness in its

class, with a magnification of approximately 0.95 times to provide a broad image field for easy

focusing and framing.

• High-speed shutter to capture fast-moving subjects in crisp focus

The K-S1 provides a top shutter speed of 1/6000 second to capture the decisive moment.

Coupled with its high-speed continuous shooting function (with a top speed of 5.4 images per

second), it lets the photographer freeze once-in-a-lifetime shutter opportunities.

• High-precision AF with SAFOX IXi+ AF sensor module

The K-S1 features the SAFOX IXi+ AF sensor module, which assures responsive, high-precision

autofocus operation with 11 sensors, including nine cross-type sensors. It also provides a spot

beam to assist AF operation in poorly lit locations. Its select-area expansion function ensures

that the sensor module keeps tracking a moving subject, even when the subject moves out of a

pre-assigned auto-tracking area, by assessing the distance data collected by neighboring focus

sensors. The AF hold function maintains the in-focus position, even when the AF system loses

track of the subject after once capturing it in focus. These functions combine to improve the

camera's accuracy in the detection of moving subjects when its focus mode is set to AUTO, and

upgrade its auto-tracking performance of these subjects when using a telephoto lens.

• A selection of image-processing tools for creative, personalized expressions

By setting the Mode dial to the EFFECT position, the user can apply the desired visual effect to

an image while previewing the outcome on the LCD monitor. It provides a choice of 10 distinctive

effects, including three new options: “Fresh” with a crystal-clean finishing touch; “Fade Color” for

an elegant finish with subdued colors; and “Infrared” for a black-and-white finish like that of an

infrared photo. The K-S1 also provides 21 digital filters (nine of them applicable during shooting),

including a new “Color Replacement” filter.

• Dependable lens aberration compensation system

In addition to the effective compensation for distortion, chromatic aberration and peripheral

brightness, the K-S1 also provides compensation function for diffraction, which deteriorates

image resolution when a small aperture is used.

• Connected device functions**

The optional FLUCARD FOR PENTAX 16GB memory card can release the K-S1’s shutter,

provide a live-view image, and browse and download the images recorded on the card using a

smartphone or other wireless and web browser enabled device.

** These functions support smartphones operating iOS6 or later and Android 4.2 or later.

• 3.0-inch, high-resolution LCD monitor, and newly designed, easy-to-use interface

The K-S1 features a high-resolution, wide-view LCD monitor with approximately 921,000 dots.

It also provides a status screen employing the newly-designed GUI (Graphical User Interface),

which allows the user to confirm functions and settings assigned to the four-way controller and

the OK button at a glance. The RICOH RT font has been used for on-screen menus to improve


• Full HD movie recording with stereo audio

The K-S1 captures beautiful Full HD movie clips (1920 x 1080 pixels; 30/25/24 frame rate) in

the H.264 recording format, which assures flawless, high-quality movies even with fast-moving

subjects. It is also equipped with a built-in stereo microphone for recording natural sound during

Full HD movie recording.

• Color Options

The K-S1 comes in 12 different colors: The standard colors: black, blue, and white. The Fabric

Collection: Cotton Beige, Linen Brown, Denim Blue, and Tweed Gray. The Night Sky Collection:

Sunset Orange, Dusk Gold, Moon Silver, Midnight Black, Dawn Purple.

• Other features

・ Compatible with Eye-Fi wireless LAN memory cards

・ 77-segment, multi-pattern metering system for high-precision light measurement

・ DR (Dust Removal) mechanism for effective elimination of dust on the image sensor using

ultrasonic vibration

・ Digital Camera Utility 5 software (latest version) included

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