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Panasonic 20mm f1.7 lens for M4/3


strawman 11 22.0k 16 United Kingdom
25 May 2012 3:28PM
err CB The Canon system does that also, well the 5D MKII did. you connect the camera to the PC via the USB Cable and follow the on-screen instructions, or you can use the memory card technique. Personally I prefer the memory card technique, anything that takes extra devices out of the update process is good news. regardless its good to have the new firmware on the card should there be an interruption of the re-flash process.

Does the Olympus SW not ask you to put an empty memory card in the card slot. I hope they are not running real time from the PC or from RAM.

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Carabosse e2
11 39.7k 269 England
25 May 2012 3:32PM

Quote:The Canon system does that also


Well I'll be blowed! Wink I obviously didn't notice that. Trying to think if I upgraded the firmware on the 5D II. Pretty sure I did.

I certainly did on the 20D and 5D I.

The OM-D firmware update is here .
Paul Morgan e2
13 16.1k 6 England
25 May 2012 4:12PM

Quote:I hope they are not running real time from the PC or from RAM


Works a little like windows updates John, downloads to memory in full before it alters the camera.

My old Canon 300D firmware did not work like this so it must be pretty new, Olympus has updated like this since the E1.
strawman 11 22.0k 16 United Kingdom
26 May 2012 12:13AM
We are getting off topic, but I was thinking the PC puts the update into non-volatile memory so on a power interruption or task interruption you can re-start the process. So on the camera I would hope the new firmware is put into the memory card and not sent down the USB link real time as the USB link is prone to corruptions (and PCs tend to go off and do other things too) that may prevent the real time stream of data needed to keep the on-micro flash re-programming happy.

All the canon system does is run the code to the memory card from the PC, then the PC software guides you to start the camera re-program. My phone looks to use a similar process to update its OS. My tablet looks to have multiple memory devices so it downloads to one Flash device then runs from that to program the firmware.
Carabosse e2
11 39.7k 269 England
26 May 2012 5:38PM
With Olympus you have to remove the memory card from the camera before doing the firmware update.
Paul Morgan e2
13 16.1k 6 England
26 May 2012 5:41PM
Carabosse e2
11 39.7k 269 England
26 May 2012 5:45PM
Very tempting Paul. Wink I think I'll wait for a bit though and see what Oly does about the issue with the Panny 20mm. I'd like a nice fast lens like that,
Paul Morgan e2
13 16.1k 6 England
26 May 2012 5:50PM
Would you be likely to use ISO 6400 a great deal CB, as I understand it, this is were the banding shows.

That Sigma focuses pretty close as well, 20cm, the same as the 19mm that I use Smile
Carabosse e2
11 39.7k 269 England
26 May 2012 5:58PM

Quote:Would you be likely to use ISO 6400 a great deal CB, as I understand it, this is were the banding shows


The OM-D is camera which tempts you to use high ISO, Paul! Lol! Smile (More so, anyway, than my old Canon 5D Mk II).

My need for a fast lens is a few weeks away yet so I can play a waiting game for now.
Paul Morgan e2
13 16.1k 6 England
27 May 2012 8:22PM

Quote:My need for a fast lens is a few weeks away yet so I can play a waiting game for now


Have you seen the new 75mm f1.8 Smile
Carabosse e2
11 39.7k 269 England
27 May 2012 9:10PM

Quote:Have you seen the new 75mm f1.8


Yes.............. and the price! Grin
StrayCat e2
10 15.5k 2 Canada
27 May 2012 9:41PM
That 75mm seems an odd focal length for a prime.

Get the 20mm CB, the price is right if that focal length serves your purposes.Smile
Carabosse e2
11 39.7k 269 England
27 May 2012 9:44PM
There is method in their madness. The 75mm (= 150mm on FF) will give similar shallow DoF as an 85mm portrait lens on FF.

But you'll have to stand well back! Wink
lemmy 7 2.0k United Kingdom
27 May 2012 9:51PM
I have one. Never get rid of it. razor sharp, compact, fast and not expensive. One of those lenses you'll always need, like a 35mm f2 used to be on a Leica.
Paul Morgan e2
13 16.1k 6 England
27 May 2012 9:59PM

Quote:Yes.............. and the price!


Its priced the same as the Canon 135 f2, I don`t think its that bad Smile

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