Pentax K-1 DSLR with stabilized full frame sensor and GPS can track stars




Ricoh Imaging has presented the Pentax K-1. The DSLR will get a 36.4-megapixel sensor of the full frame format and five-axis stabilization. The mechanism is, inter alia, in combination with the built-in GPS used for the Astro-Tracer function.

The sensor in the Pentax K-1 is a CMOS chip with a resolution of 36.4 megapixels and ISO range of 100 to 204,800. Presumably, it is a sensor from the factory of Sony, like the chip in the Nikon D810. It is the first full-frame DSLR which offers five-axis stabilization in the housing. According to the manufacturer provides that five stops profit.

The stabilization mechanism makes possible a number of features that the Pentax camera can distinguish itself from competitors like Canon and Nikon. For example, the K-1 has the Astro Tracer feature , which makes it possible to photograph stars with slow shutter speeds without the bright spots appear as stripes. This is possible because the sensor thanks to the stabilization mechanism can make small shifts. On the basis of GPS data, the sensor can be as ‘moving’ with the star. This feature was previously used in other Pentax cameras with GPS and can be activated on some models without GPS by connecting an optional GPS accessory.

Pentax K-1
Pentax K-1
Pentax K-1

Just as the Pentax K3 II K-1 also features a Pixel Shift Resolution feature. The camera takes four shots in quick succession and shifts using the stabilization mechanism sensor for each shot always one pixel. The files are combined into a picture that has available the color information of four pixels for each captured pixel. This results in sharper images without color errors and with less noise.

Also, the stabilization mechanism can be used to move a few millimeters of the sensor in order to apply perspective correction. Further, the mechanism may vibrate very quickly, in order to simulate the effect of an anti-aliasing filter. The sensor itself has no AA filter, causing moire may appear when photographing small details.


The Pentax K-1 is a SAFOX 12 autofocus module with 33 focus points, 25 of which are cross-sensitive. The three sensors in the middle are extra sensitive when using lenses with an aperture of f / 2.8 or larger. The maximum shooting speed is 4,4fps and can fit 23 or 70 raw files jpg in the buffer. It is possible to shoot with the camera at a resolution of 1920×1080 pixels with up to 30fps.

The housing is sealed against dust and moisture, and weighs about 1kg including battery. Two slots are provided for SDXC memory cards. The 3.2 “LCD offers 1.04 million pixels and a flexible tilting mechanism. This allows the screen horizontally, vertically and diagonally fold out. The optical viewfinder is a penta prism that shows 100 percent of the image with a magnification of 0.7x. There is also a battery grip for the Pentax K-1, D-BG6, which provides extra support and space for two batteries.

In the United States, the Pentax K-1 body from April available for a suggested retail price of 1799 dollars. Converted including tax is about 1957 euros. At time of writing, the euro price is not yet known, but previous rumors spoke of a price of 1999 euros. This makes the Pentax K-1 relatively inexpensive. The high-end full-frame DSLR from Canon and Nikon cost around 3000 euros. However However, both competitors offering cheaper models, which are less equipped than the Pentax K-1.

Pentax K-1
Pentax K-1
Pentax K-1
Pentax K-1

Pentax 15-30mm f / 2.8 and 28-105mm f / 3.5-5.6

Simultaneously with the Pentax K-1 Ricoh Imaging has announced two new full frame lenses. There comes a 15-30mmm f / 2.8 ultra-wide angle and a 28-105mm f / 3.5-5.6 standard zoom. Both lenses as the camera provided with seals against dust and moisture. The 15-30mm is probably made by Tamron. That manufacturer has a similar lens with optical design range.

Ricoh Imaging announced the development of the first Pentax DSLR with full frame sensor early last year during the CP + -fotobeurs 2015. Since then, the manufacturer has also been a number of lenses introduced which are suitable for full frame cameras, including a 24-70mm f / 2.8, 70-200mm f / 2.8 and 150-450mm f / 4.5-5.6 lens. It is also possible to use old manual lenses Pentax mount on the new camera.


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