The α 1 uses a newly developed full-size laminated CMOS image sensor with an effective memory of about 50.1 million pixels. The sensor greatly expands the high-speed signal processing circuit. Through the combination of the A-9II D transform refreshed from α-output, the huge output signal is temporarily stored in the buffer memory and can be processed at high speed without stagnation. As a result, a 50.1 million pixel AF/AE with a maximum of about 30 frames per second follows the high-speed continuous beat.
The high-speed continuous shooting performance of about 30 frames per second, together with the height of the number of pixels of the sensor, is still at the top. Canon also has the "EOS R3" with continuous shooting performance of 30 frames per second. The 50MP sensor of α 1 has absolutely necessary performance for those who need it. The most amazing thing is that it continues to generate and process the huge data produced by the number of pixels at the speed of 30 frames per second. Just from this fact, you can imagine the sharpness of α 1.
However, even if it has a shooting performance of about 30 frames per second, it makes no sense if it is not suitable for practical operation. Judging from the maximum performance conditions disclosed by the company, it is conceivable that the corresponding memory cards and lenses need to be prepared when the measured values of CFexpress Type A cards are about 165x / s JPEG and 155x / s RAW in the case of cards made by the company. That's why.
Shutter mode: automatic or electronic shutter setting focus mode: AF-S, AF-C, DMF, MF may be driven mode: continuous photography mode "Hi+" recording mode uncompressed RAW or lossless compressed RAW up to a shutter speed of about 20 frames per second: 1 stroke is effective when more than 125 seconds. In the case of AF-C mode, the aperture value of more than 250 seconds: F22 or less (when AF-C) corresponds to the lens: all 3 are used this time. The corresponding situation can be confirmed through Sony's official website.
The first is the lens, but there are limited products that support AF/AE following photography at about 30 frames per second. I won't discuss it in detail here, but if it's the latest product, you can see that it's fine. This time, FE35 mm F1.4GM, FE50 mm F1.2GM and FE135 mm F1.8GM are used. By the way, in the case of different shots, the continuous shooting speed is 20 frames per second, 15 frames per second, so you need to pay attention. In addition, when the recording mode is used as an uncompressed RAW or lossless compressed RAW, the maximum is about 20 frames per second.
今回テストで使用した3本のGMレンズThe amount of 50MP data generated at 20 to 30 frames per second is huge. Therefore, in the use of continuous shooting, especially around the consolidation of data processing plays an important role. In other words, it is necessary to combine memory cards with good write speed. There is also a certain degree of buffer memory on the camera side, but according to the writing performance of the memory card side, the degree of comfort is greater than expected.
α 1 adopts slot structure corresponding to CFexpress Type An and SD UHS-II cards. It will be clear if you actually use two cards, but the one with large capacity and good speed performance is of course CFexpress Type A. Therefore, this time confirmed the strength of the CFexpress Type A card (160GB) made by ProGrade Digital, which has just started to be sold in China. This card shooting will improve the comfort of α 1 to what extent, mainly from the author's professional portrait shooting point of view.