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Better than the Sandisk Ultra for Nikon D7000/7100
on 10 April 2013
My Nikon D7100 has a small buffer (same as the D7000) and so when shooting RAW the buffer fills up quick (in a second if shooting 6fps) - then the speed of the card becomes critical.
There have been some labelling changes recently from Sandisk as I have two 8GB Extreme cards with "30MB/s" on them, so I thought the Ultra labelled ones also "30MB/s" would be the same. They aren't as I found out.
The 64GB "30MB/s" Ultra was too slow, to the extent the camera locked up for seconds and this was a problem even for portrait photography (e.g. walking down the church aisle at a wedding because you can't do anything), where as the similarly labelled 8GB "30MB/s" Extreme ones performed somewhat better. Image review was also slow, although I don't tend to chimp that much when working otherwise you can miss things. But regardless, performance was hindered and I returned the Ultra card.
So instead I bought this Sandisk Extreme "45MB/s" 64GB card as I couldn't warrant spending twice as much on the 95MB/s ones knowing full well that it'd not make a huge difference (as the MB/sec speeds are generally read speeds at peak performance.) In short - much better!
With this card I can shoot the D7100 in CL (continuous low) at 3FPS recording 6-7 frames of RAW in a burst, then the camera slows to about 1FPS but that's fine because the camera reacts if you let go of the shutter release momentarily after the continous burst, and then start shooting again, the camera and memory card is ready to shoot again. In other words, the camera doesn't lock up for seconds at a time. Anyone who shoots things that can change in seconds (i.e. not landscapes necessarily!) will appreciate this.
Therefore if you're shooting a D7000 or D7100 (maybe even the D5200 as that is a 24MP camera with a small buffer too) you need this card if you anticipate any kind of perfomance whilst doing continuous bursts of shots interspersed with single shots and need the camera to be reactive and not locked up clearing the buffer and writing to a card.