A7RII and SD card speed

Started Nov 3, 2015 | Discussions thread
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pelikansalat
pelikansalat Forum Member • Posts: 77
A7RII and SD card speed

Hey guys, I got myself an Alpha 7R II and SanDisk Extreme PRO SD card (64 GB) and am surprised about the slow speed when shooting uncompressed raw. I understand that with around 80 MB per file, the files are huge, but the card is rated with 90 MB/s write and 95 MB/s read, so it should take about a second to write the file. However, if I take a picture and press the play button, I cannot view the recorded image until the file was written and that takes abour three seconds. I also don't understand why the file isn't read from the buffer. Beside that, once the image is displayed, if I press the zoom button and zoom in, it takes about two or three seconds for the image to zoom in. Is this normal?

 pelikansalat's gear list:pelikansalat's gear list
Sony RX100 VA Sony a7R III Sony FE 55mm F1.8 Sony Vario-Tessar T* FE 16-35mm F4 ZA OSS Sony FE 35mm F1.4 +3 more
Sony a7R II
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