Introduction of Pentax kr lens interface and bayonet (what about this lens? )

Pentax lenses are very famous in the film age, and a large number of Pentax classic lenses, including "Yincui gorge", are in the hands of photographers. The unique picture atmosphere of Pentax lens makes many people fondle it. Today, many people like the color of Pentax. In order to let the Pentax lens in hand exert its residual heat, the lens was handed over to Sony. Recently, our own brand Monster Adapter's LA-KE 1 adapter ring has been mass-produced, giving Pentax users a new choice.

Many lenses of the K-mount are focused by the motor of the fuselage, and there has never been an adapter ring that can solve the automatic focusing problem of the K-mount before. Therefore, do not use the autofocus function after the Pentax K-mount lens can be transmitted. Even if you switch to the Pentax Q series mirrorless camera platform and use the original Pentax adapter ring, the K-mount lens cannot use the autofocus function. The Lord of the Rings LA-KE 1 finally solved this problem. This is the world's first K-bayonet electronic adapter ring.

The Lord of the Rings LA-KE 1 has electronic contacts, which allow the Pentax lens to communicate with the E-mount camera. It can not only transmit EXIF information, but also realize Sony's focusing, focusing, five-axis anti-shake and other functions; Bodies.

In addition, this adapter ring also has built-in screwdriver focusing motor and aperture motor. Whether it is a traditional screwdriver focusing lens, a built-in focusing motor lens, a lever aperture lens or an electromagnetic aperture lens, it can be successfully identified and driven.

The adapter ring itself weighs only 96 grams, and its size is 806033 mm, which is small and light. Adopt a single lightweight fuselage, and the overall sense of use is light.

The adapter body and one side of the E-bayonet adopt an integrated molding process, which makes the adapter ring more durable and reliable when transferring lenses. The surface of the adapter ring adopts concentric pattern technology, which can not only ensure the surface of the adapter ring to be firm and not loose, but also effectively reduce the wear between the lens and the adapter ring, and greatly improve the face value of the adapter ring.

This adapter ring can also be updated with firmware, which provides convenience for future function upgrade. However, it does not adopt the mode of setting the interface on the fuselage, but updates the firmware through the camera. This can avoid the wear caused by plugging and unplugging, and also reduce the probability of water and dust accumulation on the USB interface of the host.

Of course, what we are most concerned about is the focusing performance after transfer. After all, using autofocus can give people a smooth shooting experience. So, what is the focusing effect after the old lens is transferred?

We use Sony A7C with LA-KE 1 adapter ring to rotate Pentax HDDA 40mm F2.8 limited lens for focusing measurement. In the process of focus switching, it can be found that in a certain depth shooting scene, when switching the focus of different depths, focus switching can be said to be very sensitive and without hesitation.

A more intuitive feeling comes from the rotation speed of the focus scale. We recorded the moving picture when the mirror was in focus:

We can see that motor-driven lens focusing is very decisive.

The adapter ring equipped with electronic contacts can also give the old lens the bonus of the modern fuselage. LA-KE 1 can assist Pentax lens to obtain Sony's five-axis anti-shake and eye control focusing functions; Bodies. Through the transmission of LA-KE 1, the K-mount lens, which originally did not support lens anti-shake, can also activate Sony's five-axis anti-shake function and obtain anti-shake effect.

We use Pentax FA 200mm F2.8 lens with Sony A7C body to try the anti-shake function: set the shutter speed to1100 seconds, and turn on and off the anti-shake of the body to shoot.

Turn on anti-shake effect.

Turn off anti-shake effect

From the comparison of the big picture, we can clearly feel the effect of anti-shake intervention. Let's compare the details around the focus of the clip:

The clarity of the text on the label is obviously different, and the intervention of anti-shake of the fuselage can greatly improve the success rate of shooting.

The Lord of the Rings LA-KE 1 Turn Pentax lens also supports Sony's body eye tracking function. Using Sony A7C fuselage and Pentax HD DA 40mm F2.8 limited lens, the eye focusing function is simulated and tested with person photos.

It can be seen that after the lens recognizes the face, it always takes the human eye as the tracking object. Whether it's the change of distance or obstacles

LA-KE 1 adapter ring allows the old lens to enjoy the addition of modern fuselage new technology through excellent electronic technology, which can obviously improve the performance of the lens and broaden the application scope of the old lens.

At present, the research and development process of the Lord of the Rings LA-KE 1 adapter ring has been completed and has entered the mass production stage. The mass-produced LA-KE 1 can already support Sony's new fuselage including A7C. Moreover, LA-KE 1, the world's first K-bayonet fully functional automatic adaptation ring, was designed by its own brand Lord of the Rings, from design to research and development. D was made in China.

Now, Xinxiang Power, as the primary partner of Magic Ring Optoelectronic Technology, is the first to get the mass production adapter ring for evaluation. We will have a more detailed demo experience of the Lord of the Rings LA-KE 1 later.

Heart of the King 2 Click on the demo.