SD card to speed up in-camera review

Snapshooter

Mu-43 Regular
Joined
Feb 26, 2019
Messages
36
I shoot with a E-M1, raw + large super fine JPG. When I take a series of pictures, even on single shot drive (I rarely shoot sequential), I often have to wait 10, 15, 20 seconds to review the pictures. My SD cards are SanDisk Ultra, rated at 80 MB/s. It seems that these cards are rated only for read speeds and not write speeds. I would like to eliminate the waiting period to review pictures, so I’m thinking about upgrading to the SanDisk Extreme Pro 95 MB/s Card, which is rated at 90 MB/s write speed. At a glance it seems to me that a write speed like that should be able to handle 3-4 pictures per second without building up a buffer. But I really don’t know. Does anyone have perspectives to share here on this specific card or the write speed? I like the look of the 95 MB/s model because it is a lot less expensive than faster cards and I’d like to not spend any more money than I need to to address my issue.
 

MarcioK

Mu-43 Regular
Joined
Nov 9, 2012
Messages
54
I think that you don't have to bother - looks like that the original E-M1 have a very slow card slot - and probably even your current card is way faster than it.

Cannot find the card reader specs for the E-M1, but this site tests the speed with a bunch of cards:

https://www.cameramemoryspeed.com/olympus-e-m1/fastest-sd-card-tests/

The top speed was 32.5 Mb/s, with the SanDisk Extreme 95Mb/s that you want.

For comparison, the E-M1 MK II have a top writing speed of 163,4 Mb/s:

https://www.cameramemoryspeed.com/olympus-e-m1-ii/sd-card-speed-comparison-test/
 

Snapshooter

Mu-43 Regular
Joined
Feb 26, 2019
Messages
36
Huh... very interesting! I figured the limitation was the card, but maybe it is the camera/my settings. Thanks for sharing.
 

threeOh

Mu-43 Veteran
Joined
Aug 22, 2019
Messages
217
I believe those jpegs need more processing (and I/O) than raws. At least with my GM1 which has a pitifully small buffer. raw only buys me more speed/buffer space than jpeg only.

I follow a couple of rules with memory cards:
Unless purchased directly from SanDisk, they are more often than not, counterfeit. And perform accordingly. SanDisk prices are competitive with Amazon.
The camera is the limiting factor, not the card.
 

Snapshooter

Mu-43 Regular
Joined
Feb 26, 2019
Messages
36
Thanks for your thoughts. I do like the large, super fine jpgs to be generates in camera for convenience.
 

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