Nikon leak "D50" and "D70s"
Discussion
Found a link to the manual in PDF.
<a href="http://www.conneti.com/d50_usermanual.pdf">www.conneti.com/d50_usermanual.pdf</a>
http://www.conneti.com/d70s_usermanual.pdf
Enjoy
D50 - 6MP and uses SD cards
>> Edited by sjn2004 on Thursday 31st March 23:44
<a href="http://www.conneti.com/d50_usermanual.pdf">www.conneti.com/d50_usermanual.pdf</a>
http://www.conneti.com/d70s_usermanual.pdf
Enjoy
D50 - 6MP and uses SD cards
>> Edited by sjn2004 on Thursday 31st March 23:44
All this "oops we've accidently put the manual on the website, how did that happen, someone is in for the chop" crap really grips my sh*t.
Just announce it and be done with it! MORONS!
The link is gone but I must say 23mp seems a bit high if it's a camera at the D70 price point.
That would make it the highest resolution SLR I've seen, and assuming Nikon are sticking to the smaller digital sensor theme (which I would assume based on all the digital only DX lenses that are available now) then 23MP seems a lot to cram into a less than full size sensor!
Just announce it and be done with it! MORONS!
The link is gone but I must say 23mp seems a bit high if it's a camera at the D70 price point.
That would make it the highest resolution SLR I've seen, and assuming Nikon are sticking to the smaller digital sensor theme (which I would assume based on all the digital only DX lenses that are available now) then 23MP seems a lot to cram into a less than full size sensor!
Really? It could swear it takes a lot longer to transfer a GB of data off my SanDisk Ultra II SD than it does my Sandisk Ultra II CF. But research suggests I am talking bollox.
Also you're right - SD cards cost about the same as CF. When I bought my SD card about a year ago they were FAR more expensive byte-for-byte, so this must be a fairly recent thing.
Also, SD cards are a lot smaller, have an inherently more reliable mechanism for insertion and removal (no pins!) and have a write-protect switch.
Hmmm... maybe I prefer SD after all...
Also you're right - SD cards cost about the same as CF. When I bought my SD card about a year ago they were FAR more expensive byte-for-byte, so this must be a fairly recent thing.
Also, SD cards are a lot smaller, have an inherently more reliable mechanism for insertion and removal (no pins!) and have a write-protect switch.
Hmmm... maybe I prefer SD after all...
As I understand it the transfer speeds CF and SD memory cards are capable of don't even come anywhere close to breaching the sustained transfer rates that USB2 offers. And in any case, the sustained speed difference between USB2 and FireWire are pretty marginal anyway, but it's moot as memory cards don't come anywhere close to either interface.
The only problem I see with there being no FireWire SD card reader would be that those folks without USB2 don't have access to a card reader, but virtually all PCs and Macs sold in the last 2-3 years will have USB2, so I don't really see that as being a problem.
Unless I'm missing something obvious here...
The only problem I see with there being no FireWire SD card reader would be that those folks without USB2 don't have access to a card reader, but virtually all PCs and Macs sold in the last 2-3 years will have USB2, so I don't really see that as being a problem.
Unless I'm missing something obvious here...
sjn2004 said:Cool. Isn't that just down to implementation, as opposed to the interface? My USB2 hard drive can do over 30MB/sec sustained, so what's to stop a USB2 card reader doing 12.5MB/sec? I always thought the bottleneck was the speeds that the card is capable of transferring at, as opposed to the interface.
When you are shifting a lot of data firewire is quicker. The Lexar firewire reader can do about 12.5MB per sec substained. Thats a 1GB card in 80 seconds!
Sorry, I'm a big geek.
-DeaDLocK- said:
When you are shifting a lot of data firewire is quicker. The Lexar firewire reader can do about 12.5MB per sec substained. Thats a 1GB card in 80 seconds!
Cool. Isn't that just down to implementation, as opposed to the interface? My USB2 hard drive can do over 30MB/sec sustained, so what's to stop a USB2 card reader doing 12.5MB/sec? I always thought the bottleneck was the speeds that the card is capable of transferring at, as opposed to the interface.
Sorry, I'm a big geek.
That 12.5MB/sec figure is a real world figure of Rob Galbraiths site rather than a spec sheet. Have you tested your USB2 harddrive with a big file?
sjn2004 said:Good question.
That 12.5MB/sec figure is a real world figure of Rob Galbraiths site rather than a spec sheet. Have you tested your USB2 harddrive with a big file?
Just tested it - a 1.23GB file took me 1:09 to transfer over USB2, so that equates to a real world transfer speed of nearly 18MB/sec. And this is taking into account the time it takes for the transfer rate to hit the sustained speed (which can be a few seconds), and that my system was under load due to video rendering. So I reckon the sustained rate is a bit more than that.
The new Sandisk Extreme III cards have a **quoted** read rate of 20MB/sec, whereas the Ultra IIs have a 10MB/sec rate. I'm not sure how close they actually get to the spec sheet rates in the real world, but I'd say a 18MB/sec limit is pretty optimistic.
A quick Google uncovers that although the quoted transfer rate of USB2 is higher than FW400, in the real world Firewire is about one and a half times faster at reading data (write speeds are about the same for both interfaces). Of course if you talk about FW800 then it's a different matter, but I think FW800 is only available on certain Macs so is largely an irrelevance.
Anyway my point was/is this - the transfer rates that removable flash media are capable of (and these days the SanDisk Extreme IIIs are the benchmark I think, though we must remember most don't have media anywhere near as fast as those beasts) don't breach the real-world transfer limits of either USB2 or Firewire. So there should be no technical reason whatsoever as to why a USB2 card reader shouldn't be as fast as a Firewire card reader.
It could be that those who make Firewire card readers spend a bit more on maximing the read rate whereas most USB2 card readers tend to be cheap Taiwanese knock-offs with not much attention to effciency, but as I said, this is an implementation issue - not one to do with the limits of the interface.
God only a geek would split hairs over something so trivial. I need a life.
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