datadump Goldmember  1,932 posts Joined Oct 2007 Location: Canada More info | Apr 17, 2009 01:12 | #1426 fyi i switched back to 1.2.3... same observation in terms of servo vs oneshot. datadump
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datadump Goldmember 1,932 posts Joined Oct 2007 Location: Canada More info | Apr 17, 2009 01:24 | #1427 i'm actually curious if other bodies have this weird quirk too... 1d mk2? how about 50D? hmmmmmm datadump
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RenéDamkot Cream of the Crop  39,856 posts Likes: 8 Joined Feb 2005 Location: enschede, netherlands More info | Apr 17, 2009 07:00 | #1428 My 1D2 was about unusable in low light / AiServo with a couple of my lenses (all but the 80-200L in fact). "I think the idea of art kills creativity" - Douglas Adams
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datadump Goldmember 1,932 posts Joined Oct 2007 Location: Canada More info | Apr 17, 2009 09:11 | #1429 I received a really interesting email reply from Mr West fall about my problem. i think this is somewhat of a satisfactory answer for me. i really should just go out and shoot some shows this weekend rather than sit here perplexed. The light level you describe (ISO 800, 1/15 at f/1.2) is close to the threshold of the EOS-1D Mark III's low-light AF sensitivity. Without the use of flash under these lighting conditions, it would be very difficult to obtain sharp photos at f/1.2 unless the camera was steadied through use of a tripod, and also the camera's reflex mirror should be locked prior to exposure. Assuming that you're prepared to take those considerations into account, then your observation about the difference in focusing capability between One-Shot AF and AI Servo AF for the EOS-1D Mark III is correct. Focus will lock on a subject with readable contrast in One-Shot AF, but AF will fail under the same lighting conditions in AI Servo AF. That is completely normal and to be expected. It's due to differences in the amount of time that light is allowed to accumulate on each pixel in the AF sensor: That period of time, which Canon does not disclose, is longer for One-Shot AF than it is for AI Servo AF, and the result is superior low-light performance for One-Shot AF. This is essentially the performance level that the EOS-1D Mark III offers in extremely low light, so there would be no benefit in sending the camera in for service on this issue. datadump
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Apr 17, 2009 11:39 | #1430 So I asked this question earlier, but no one responded. Who has had the fix (hardware, adjustment, whatever at the factory) and then gone back to 1.2.3? I am still pretty disappointed with 1.2.5 both before the fix, and after. I have the 123.FIR file. Is there any problems going backward?
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drisley "What a Tool I am"  9,002 posts Likes: 108 Joined Nov 2002 More info | Apr 17, 2009 16:11 | #1431 Whoa, how did you get a hold of Westfall?! datadump wrote in post #7749108  I received a really interesting email reply from Mr West fall about my problem. i think this is somewhat of a satisfactory answer for me. i really should just go out and shoot some shows this weekend rather than sit here perplexed. Is this common knowledge for you guys about Servo mode and I'm just a bit slow on the ball or does this shed some light? EOS R6 Mark II - Sigma 50/1.4 Art - Sigma 14-24/2.8 Art - Canon EF 70-200/2.8L Mark III - Godox Xpro-C - Godox TT685C x2
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WavyC Senior Member 857 posts Likes: 5 Joined Jan 2005 Location: Belfast, Northern Ireland More info | Apr 17, 2009 19:39 | #1432 This might have been asked before but I can't find it in the thread....
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Waiting on the shipping label and mines going in for the fix.
The things you do for yourself die with you, the things you do for others live forever.
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mattograph "God bless the new meds"  7,693 posts Joined Jan 2008 Location: Louisville, KY More info | Apr 17, 2009 20:48 | #1434 Perry Ge wrote in post #7747615 I'm still using firmware 1.2.3, for the record. I'm happy to describe my cam as a reference point for people who've gotten the 'fix', especially the Canadians. Send it to me right away. I run some tests and send the results back to you..... This space for rent.
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PerryGe Batteries? We don't need no... . . . or cards.  More info | Apr 17, 2009 20:53 | #1435 PM01 wrote in post #7747626 Have you tried out 1.2.5? Not yet. My card reader is broken and I'm lazy. mattograph wrote in post #7752972 Send it to me right away. I run some tests and send the results back to you..... Nice try Perry | www.perryge.com
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ChrisGill Member  90 posts Joined Apr 2007 Location: Wirral,North West,UK More info | Apr 18, 2009 03:31 | #1436 I was told by Canon UK yesterday that when the latest AF fixes have been done a "grey dot" is applied just by the battery terminals inside the battery chamber, as mine has!!
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paul_g Member 146 posts Joined Jan 2007 Location: Sutton Coldfield More info | Apr 18, 2009 03:38 | #1437 ChrisGill wrote in post #7754467 I was told by Canon UK yesterday that when the latest AF fixes have been done a "grey dot" is applied just by the battery terminals inside the battery chamber, as mine has!! Chris Gill They aren't applying that to all cameras, because mine is dot free! http://www.paulgoodephotography.co.uk/
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echo Goldmember  1,964 posts Likes: 1 Joined Sep 2005 Location: A recording studio somewhere in the UK or USA More info | Apr 18, 2009 03:53 | #1438 Same here, no dots anywhere. http://www.RecordProduction.com
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PeteW Goldmember  More info | Apr 18, 2009 03:53 | #1439 ChrisGill wrote in post #7754467 I was told by Canon UK yesterday that when the latest AF fixes have been done a "grey dot" is applied just by the battery terminals inside the battery chamber, as mine has!! Chris Gill No dot on mine Chris All the best
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malla1962 Cream of the Crop  7,714 posts Likes: 5 Joined Jul 2004 Location: Walney Island,cumbria,uk More info |
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