"LUMIX GH6", the top of the Micro Four Thirds with extreme video performance

■ Micro Four Thirds Looking again, Panasonic's consolidated performance announced in May 2021, it is a new reminiscent that the economic newspaper has raised the consumer camera business all at once, and has made a noise to withdraw. Certainly, if you look at a "photo machine", the share is not high, but it seems that only limited people understand that it is the top brand if you look at a "video machine". [See another image about this article] LUMIX's mirrorless interchangeable -lens camera has a full -size S series and Micro Four Thirds (M4/3) G -series, but the M4/3 GH series is a video machine. As a result, many high -rated models have been produced from video creators. The latest model of such a GH series is "LUMIX GH6" introduced this time. Product development was already announced last May, and it was commercialized in 2021, but it was released a little later on March 25 this year. The expected store for the body is around 263,000 yen. In the M4/3, some of the ally Olympus was uneasy about the future, including completing the transfer to the Nippon Sangyo Partners in January last year, but the "OM Digital Solutions" is "OM System OM-1" from the new "OM Digital Solutions". It is decided to be released in March, and it is showing excitement again. Let's test this unit, which has all the M4/3 merits of about 1/4 of the sensor size about 1/4 of the full size. ■ The body that makes a full -size machine smaller first, but the GH is a high -end model of the G series, so the size is quite large instead of the functions. However, the GH6 this time is close to the previous work GH5 II, and the depth is slightly larger. The mechanism increased, and the weight was about 100g, but the grip was deepened, so it was covered with ease of holding. The reason for the increase in depth is that the air -cooled mechanism has entered between the LCD and the body. The method is the same as a full -size S1H, but it is rare to enter the air -cooled mechanism in M4/3. That is the result of aiming for a stable long -term recording with videos. The S series is strongly influenced by the design of the entire body, such as placing the recording button on the front. On the other hand, since the warship does not have a monitor, the shooting mode dial is the right shoulder and the continuous shooting mode dial is the same. There are two FN keys in the back of the grip. The direction of the mode dial and joystick on the back can also be changed as an FN key, so the entire body has 17 FN keys. The audio button is newly established in the warship section. Press this to display the LCD screen and viewfinder for audio. In this unit, using an separately sold XLR micro hon adapter can be recorded in total, and this is one of the more shifted functions. It is a hot sensor, but it is equipped with a LIVE MOS sensor with a newly developed effective number of pixels and 26.52 million pixels. The ISO sensitivity is 100 starts and fits the shooting with the aperture open. The frame rate is also 120p for 4K and 240p for FHD. In high -speed shooting, high -speed drive of FHD 300Fps is realized. In addition, the image processing engine is equipped with a new Venus engine that has doubled the processing capacity since the S1H era. It is a high flame rate record only because it has the ability to process streams flowing in large quantities from high -speed sensors. This time, we supported PRORES 422 and Prores 422 HQ as a record format. In addition to MP4 and MOV, we support three types of formats. However, there is a difference in videos that can be recorded in each format. Here is a list here. [*What has "*" after the format can also be included at the barrier bloom frame rate] This supports a huge combination of a single camera that does not seem to be specifications, exceeding the previous video camera. You can see that it is. In this case, MOV is the most compatible with the most variety of formats, and many people will choose this. MP4 has a considerable bit rate, so it would be a good idea to use it for "shooting out" on the net. On the other hand, PRORES 422 can be recorded 5.While it is limited to 7K, it can be shot with a cinema only 24P that does not support other formats.This is for digital cinema workflow.The monitor is aspect ratio 3: 2, 3.Type of 1.84 million dots of type 0.The horizontal variocle remains the same, but this time it is now possible to tilt a little further up.As a result, when cables were inserted on the left side, the monitor did not hinder the rotation of the monitor.Viewfinder is aspect ratio 4: 3, 0.It is type 5 OLED. The first memory card slot is CFEXPRESSS TYPE B card, and No. 2 is an SD card. Double slot recording is also possible, but 800Mbps or more modes can only be recorded in CFEXPRESS, so users planning to use high -end use CFEXPRESS cards. The tripod hole at the bottom has a video boss hole. This is a mechanism to stop the rotation between the head and the camera, and is the standard on a video tripod. However, most of the digital single -lens have no boss holes, so on the video tripod, the boss itself had to be removed unless the boss was pulled by a spring. Good news for video tripod users. By the way, the reason why a boss that rotates only for the video tripod is that the horizontal axis is not orthogonal to the tilt axis when tilt with a tripod. It's a detailed story, but it's surprisingly important. ■ I would like to shoot with a crisp depiction with a high resolution. The lens used this time is Leica DG VARIO-SUMMILUX 10-25mm F1.7 and 25-50mm F1.It is 7.Kit lens DG VARIO-ELMARIT 12-60mm F2.8-4.I am using 0.First of all, it supports a variety of frame rates, but I'm worried about what the angle of view will be.This is because there is a problem that a full -size machine will narrow the reading range when the frame rate rises.However, in this unit, the angle of view is the same regardless of the resolution or frame rate.The point of this unit is the point of this unit.I was worried about which format to take as a video sample, but basically 5.7k/59.I decided to shoot with 94p.In addition, this unit can shoot V-LOG, but this time we decided to see it in the picture of "shooting and putting out" without color grading.Regarding V-Log shooting, there will be another opportunity to see it separately.It goes well with the bright zoom lens, and is no longer in terms of coloring and resolution.Although it is a shooting with SDR, the gradation of the sky is beautiful and can be taken without failure.The camera shake correction uses a lens without lens correction this time, but in the body correction, 5 axes 7..5 steps (GH5 II and G9 are 6.There are 5 steps, so it is quite corrected by itself. There are electronic correction and camera shake correction boost as before, but since the body correction is strong in the first place, there is no difference. If you turn it on all, you can also shoot fix videos in videos. Of the sample videos, the cut of the yellow flower of the low angle is hand -held. The M4/3 tends to deepen the depth of field due to the sensor size, but if the lens below F2 is 80 mm or more in 35mm conversion, you can make a considerable blur. The focus performance is generally improved by the speed of the new Venus engine. It is especially strong in face recognition and pupil recognition. In addition, a new function is equipped with a "focus rimiter" that restricts the operating range of AF. This can be used when the AF operations range is determined in advance, so that things are crossed in front and focus, or conversely, AF is concentrated only at short distances. In the past, shooting that was covered only by AF reaction speed can be controlled more accurately by specifying the reaction speed+AF range. The turn -oriented cut of the person in the sample is about 1 from the recent contact with the focus rimiter..It is filmed by specifying it up to 5m. If you are shooting face -to -face, you may want to shoot with a viewfinder while showing the monitor to the model, but on the conventional machine, monitor and viewfinder were exclusive specifications. However, in GH6, both the monitor and the viewfinder can be used when the monitor is turned face -to -face. In addition, HDMI output can be output at the same time, so you can output 3 at the same time. In addition, the exclusive specifications are eliminated in detail, such as the use of the HDMI output and the rear monitor at the same time even when playing a video. ■ Night shooting is not so bright, but the ISO sensitivity in video mode is from ISO100 to 12800. It also has a "dynamic range boost" function that reads a different ISO sensor pixel from an image sensor and synthesizes into one pixel to earn a dynamic range. As a result, a large 13+ stop dynamic range can be obtained during HDR shooting. Therefore, it will be combined with V-Log or HLG, but in this case the minimum ISO sensitivity will start from 2000. In that case, an ND filter is required for daytime shooting, but this time it was not prepared, so I used it for night shooting. First of all, in normal mode, I double the ISO sensitivity as usual. Shutter speed 1/60, F1.I shot in 7.The ISO 6400 is usually equivalent to the brightness of visually, but it is not strong in nighttime shooting because it only goes up to that twice.Similarly, at night, I shot V-log with a dynamic range boost.The ISO sensitivity is 6400, but 5.If you shrink the one taken at 7k to the HD resolution, the noise will disappear and it will be a picture that can be used. In the first half of the sample, only the conversion LUT to the REC709 provided by Panasonic is applied, and in the second half, after processing, color grading and noise reduction are applied. Since the latter half has less noise, the compression noise due to the renewable encoding is also reduced. Another thing to keep in mind is slow shooting. HD resolution can be shot at a maximum of 240p, so you can make a slow speed by editing. In addition, VFR shooting is also possible to record in a slow state on the camera side. The difference between the two is that the sound is recorded in high flame rate shooting, and the AF moves during shooting, and the sound is exactly the same as the normal shooting, but VFR shooting does not record the audio, and the focus is only manual. In general, it is easy to think that high -flame rate shooting is more advantageous, but when you drop it down, the operation of electronic camera shake correction may be in the way. On the other hand, in VFR shooting, it seems that there is an advantage that the electronic camera shake correction is automatically turned off, so the malfunction of the camera shake correction is inconspicuous. You can see the situation even in the actual sample. ■ General LUMIX GH series has been finely chopped 5 numbers, including GH5S in 2018 and GH5M2 in 2021 since the launch of GH5 in 2017. Although each had its own evolution, what would happen in the next number GH6 was just attention. Meanwhile, the newly developed M4/3 -sized high -speed high -speed sensor and a higher -speed image processing engine were combined to achieve high specifications at a reasonable price. It seems to be a newly pioneered camera that the full -size sensor could not be technically or priced. In addition, the monitor, viewfinder, and simultaneous output of HDMI have been corrected in detail where video professionals were in trouble. Regarding the operability, it is also a camera that has a good role, such as being able to shoot with the same operability even if the camera is replaced by the button arrangement to the S1H. In the video shooting field, the camera that can fight with full size in half to 1/3, including the body and lenses, is likely to be the reason for the GH6.

AV Watch, Nobuyoshi Koji