On 11-02-08 12:19 PM, AlunFoto wrote:
However I find that the throughput is far less than the theoretical
max for the protocol. When copying files from my laptop to the PC,
connecting through the wireless network is just not an option. _that_
speed is abysmal. :-)
Yeah, WiFi can be terrible. But without interference and with decent
hardware it can be really good and will approach the theoretical
throughput. That said, I took my wife's iMac off WiFi and hardwired it
last year to solve several problems including interference with a
neighbor two houses away. :-(
Hmmm...
The 645D raw files are 45-60 MB. To send a 50 MB file to LR in five
seconds, you got to move 10 MB/s (80 Mbit/s). That's within the
theoretical speed ceiling of 802.11n, but with full signal quality and
no packet loss it can take only 20% overhead. I'm no expert on network
protocol overhead, but it sounds like a tight fit even on a good day.
Another limiter is that would require a SDHC card with minimum Class
10 speed rating. The EyeFi "Pro" card is Class 6.
Well, you've beaten me with your superior math skillz there, Jostein.
:-) I have to agree that if nothing else, the Class 6 rating will limit
this. But still, a typical PEF file should xfer in about one second,
which ain't too bad.
It's kinda hard to catch what the guy in the video is saying,<g> but
my impression is that the five second uploads are from jpegs. I also
get the impression that he change to raw files about 3 minutes into
the video. The upload times are considerably longer then.
Jostein
I suspect you are right about that.
So, I'll concede that USB2 tethering may be about the same speed-wise as
WiFi tethering, and depending on many factors might be faster,
especially when one of the notorious WiFi problems pops up.
But I still like "no wires"! :-)
-bmw
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