December 17, 2014, 05:07:58 PM

Author Topic: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12  (Read 36792 times)

paolotaverna

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #105 on: December 01, 2012, 10:26:36 AM »
Indeed this post is excellent!  Although I am an ex Nikon D4 shooter and a little disapointed with 1Dx performance in low light..I had a lot of expectation!  I switched to Canon for tones and for f1.2 lenses...but it really comes short in low light focus and Dynamic range (with the D4 I could have shot 2 stops under(i'd do this to get better shutter speed) and still get great quality when adjusting exposure)...not feasible with 1Dx...


Focus really is harsh in Low light...TRIED LOTS of settings Servo / one shot...etc but really light years from D4...I guess I'll get used to it.

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #105 on: December 01, 2012, 10:26:36 AM »

xtralight

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #106 on: December 01, 2012, 12:39:36 PM »
Odd.  I routinely shoot in low light sports, no slower than 1/800s with a pair of 1D X's and have had no AF problems that I've noticed.  ISO typically up to 10,000.  I shoot only in AI Servo mode.

For my part, I was shooting at ISO 12800, f/2.8 and 1/160s. Target has very low contrast. My D800E locked more times than my 1Dx...

bdunbar79

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #107 on: December 02, 2012, 02:46:14 PM »
The differences I've noticed between D4 and 1DX is the high ISO noise reduction and printing capabilities.  The other issue is that I cannot compare which camera locked focus more times, because I have never had my 1DX not lock focus.  If you are in such poor lighting that you need to set your shutter that low, aperture that wide, and ISO that high, then who really cares?  Why would you even shoot in that situation and expect anything more?  No camera in the world will AF very well, so you cannot say it's just the 1DX.  The D4 misses just as much.  Even in the darkest sports venues, I can easily shoot at 1/640s, f/2.8, and ISO 6400 on a 1DX, and not underexpose.  The beautful thing is that if I do EC, I can raise the ISO to 10,000, apply 50% NR, and print a beautiful 8 x 10.  If I have to go darker than that, I won't shoot or I'll use a flash.

When you say your D800E locked more times than your 1DX, did you have both at the same time alternating each camera?  Was anyone in this thread shooting with both at the same time at the same event, one in each hand? 

Why in every other thread "the camera doesn't matter" unless it's a Nikon vs. Canon issue, when there's a problem, suddenly it's the camera again?  Oh you guys keep me so entertained on this site.  Keep it up!  Meanwhile I'm going to keep shooting with my 1DX's.
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paolotaverna

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #108 on: December 02, 2012, 03:30:21 PM »
Bdunbar79,

when you say "The differences I've noticed between D4 and 1DX is the high ISO noise reduction and printing capabilities."

which one do you like better?

xtralight

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #109 on: December 02, 2012, 09:40:44 PM »
The differences I've noticed between D4 and 1DX is the high ISO noise reduction and printing capabilities.  The other issue is that I cannot compare which camera locked focus more times, because I have never had my 1DX not lock focus.  If you are in such poor lighting that you need to set your shutter that low, aperture that wide, and ISO that high, then who really cares?  Why would you even shoot in that situation and expect anything more?  No camera in the world will AF very well, so you cannot say it's just the 1DX.  The D4 misses just as much.  Even in the darkest sports venues, I can easily shoot at 1/640s, f/2.8, and ISO 6400 on a 1DX, and not underexpose.  The beautful thing is that if I do EC, I can raise the ISO to 10,000, apply 50% NR, and print a beautiful 8 x 10.  If I have to go darker than that, I won't shoot or I'll use a flash.

When you say your D800E locked more times than your 1DX, did you have both at the same time alternating each camera?  Was anyone in this thread shooting with both at the same time at the same event, one in each hand? 

Why in every other thread "the camera doesn't matter" unless it's a Nikon vs. Canon issue, when there's a problem, suddenly it's the camera again?  Oh you guys keep me so entertained on this site.  Keep it up!  Meanwhile I'm going to keep shooting with my 1DX's.

I care about shooting in very low light. That is why I invest in a 1DX. I wanted the top of Canon. I do not need you to care about my type of photography. My post is about sharing to others, especially to the OP, that I have the same problem as him. I cannot use a flash, I wanted the natural lightning.

Yes, I had both cameras with the same type of lens: my 1DX(latest firmware) with the new Canon 24-70 F2.8 MkII and my D800E with a Nikon 24-70G f2.8. They were used at the same moment, with the same subject.

Look, if the 1DX delivers for you, I glad that it does. For me, I just hope that I won't have to shoot to often in very, very low light.

trucviet323

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #110 on: November 30, 2014, 08:17:41 AM »
------------------------------------------------------------------------------------------
Update 05/09/12
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Finally got an answer for this guys: It's a feature...

CPS London via CPS Australia:

"On the first issue of AF tracking in low light. Everything you found was correct and the camera needs to be dropped back to 10fps to AF in the lowest light conditions. At 10fps the camera can focus fast and effectively @ -2 Ev Level but at 12fps the Ev Level is changed to -0.5 Ev. This is because of the light reduction when the mirror moves at that speed. The camera does this automatically. This is what you were experiencing under the conditions of the cat walk. This is comparable to all professional 35mm products out there on the market"


On a side note: does the picture below with the 10 and 12 fps comparison even remotely look like 0ev let alone -2EV ?

Anyway - since I hadn't heard from Canon, chasing it up every day I actually switched over to a D4 setup after a mishap with the 1DX and AF assist (bug 2) at a reception - and haven't been happier - I don't have these limitation anymore. It's less a lottery and more consistent frame to frame shots, low light is substantially better AF and i can actually see what i am focusing on - finally.

Anyways hopefully this will help the PJ's understand what is happening.


I'm new member, I found your article on the web, it's helpful to me, I just wonder about the latest firmware of 1DX
How about the latest firmware 2.0.3, does this firmware fix this issue?

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Re: 1DX - Ai Servo Issue - Low light focus failure! Final Update 05/09/12
« Reply #110 on: November 30, 2014, 08:17:41 AM »