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Messages - mrprotocol

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Lenses / Re: Canon EF 40mm f/2.8 STM Firmware Available
« on: October 07, 2012, 03:07:34 PM »
Here's what I think.  It's purely a guess but it makes sense to me based on my past experience with systems like this one.  There's a bug, all right, but it's in the lens update firmware, not the battery registration code.  The firmware updater wants to make sure that there's enough juice to complete the upgrade, so it makes a call on another part of the firmware: "Return battery info".  What comes back is everything: not only the current state of the installed batteries, but the entire battery registration database.  If you have more than, say, two batteries registered, the returned package is too big and overwrites part of the data space used by the updater, converting some of its parameters to garbage.  Hence it then blows up when trying to flash the new firmware.  Clearing out the registration info reduces the size of the data returned to something the firmware update code can handle and the reflashing then succeeds.  Unfortunately, for those who don't get the word, their lens has now had its firmware wiped and is now a metal-and-glass paperweight.  Ooops, as they say.

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EOS Bodies - For Stills / Re: Canon EOS-1D X AF Guidebook Updated
« on: June 18, 2012, 03:00:52 PM »
I get "Referral Denied" when I try to download this link.

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EOS Bodies / Re: I Talk with James Beltz About the 1D X
« on: October 22, 2011, 05:02:00 PM »
Thanks, Craig. That was both pleasant and highly informative!

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Lenses / Re: EF 70-300 f/4-5.6L IS Review
« on: December 29, 2010, 01:10:35 PM »
For what it's worth, the Tamron 1.4x and 2.0x teleconverters would fit, because they have no projecting bits.  How good the images would be, I have no idea, but they work well enough when I use them.  They're not Canons, but they fit lenses the Canons won't.  Atmospheric haze is the big enemy, though it's hard to tell that from spherical aberration.

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Lenses / Re: EF 70-300 f/4-5.6L IS Review
« on: December 28, 2010, 04:47:06 PM »
What I want to know is, how the heck did you get all those lenses and bodies to Africa???  You seem to have brought too much stuff to lug it all as carry-on.  I'm vitally interested in this because I regard it as an unsolved problem in my own life.

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