[Leica] SD Card Questions, M(240) Gearhead Edition

[Robert Baron]

I just did an extremely unscientific test.  I put a freshly formatted 16GB
Sandisk Extreme 30MB/s SDHC I card in my M240 and turned it on and off
several times.  Then I did the same with a freshly formatted 16GB Sandisk
Extreme 45MB/s SDHC I.  Both cards are Class 10 (if I understand the lingo).

The camera is ready to shoot with the 'slower' card in a little less than
half the time as with the 'faster' card (unscientific, but probably pretty
close).

Why?

Frank?  Anyone?

--Bob

On Fri, Apr 10, 2015 at 5:58 PM, Frank Filippone <red735i at verizon.net>
wrote:

> First, the way the camera accesses the data and the card itself determines
> the save ( or read) speed.  ( My comments about the firmware).
> The  may be capable of really high speeds, but if the camera is not.... you
> get the idea.
>
> Not much..... Most of these HDD backups are slow to load from your SD
> cards.. but if you are sleeping while it is being done, who cares?
>
> For about $200 or less, you can have either a backup or a whole lot of
> images stored away.....
> The real name of the WD card is... WD My Passport Wireless... they were
> originally made in 500GB, but now, the only listings I see are for 1TB and
> 2TB.
>
> 1TB, at 24 MB per image = 40,000 images.  Give or take a few thou......
> 2TB = 80,000 images.
>
> Even Tina would have enough room for a long trip....
>
> I think Tina once said that in her years as a working pro, she took 25,000
> -
> 50,000 pictures a month.
>
> Frank Filippone
> Red735i at verizon.net
>
>
> I do notice my M(240), set to shoot DNG (compressed) (which is what has
> been
> recommended with my previous M8s and M9s) and loaded with a 16GB card,
> freshly formatted in the camera, shows 14.8GB available and 435 images to
> take, on the Info screen.
>
> Also, I do notice the Sandisk card specs on the B&H and Amazon pages for
> Sandisk Extreme and Extreme Pro cards do list both maximum read and write
> speeds, with the write speeds somewhat slower.
>
> What I'm trying to figure out is if there is a noticeable real world
> improvement when using the faster, more expensive cards and it appears - at
> least anecdotally - there is.
>
> Now you've got me looking at this Western Digital Wireless external hard
> drive.  What could possibly go wrong with that?
>
> --Bob
>
>
>
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