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Canon AF mode


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#1 cpadiver

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Posted 13 November 2011 - 10:47 AM

I have been deciding whether to house my Canon 7D.

My biggest gripe with the camera is the focus point does not light up in red when using AI Servo AF. I use AI Servo underwater. Thus the focus point on the 7D would be black.

Do most of you Canon users use One Shot AF or AI Servo when shooting underwater?

I shoot mostly small fish and macro type shots when I can.

Any thoughts?

#2 bvanant

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Posted 13 November 2011 - 11:50 AM

I have been deciding whether to house my Canon 7D.

My biggest gripe with the camera is the focus point does not light up in red when using AI Servo AF. I use AI Servo underwater. Thus the focus point on the 7D would be black.

Do most of you Canon users use One Shot AF or AI Servo when shooting underwater?

I shoot mostly small fish and macro type shots when I can.

Any thoughts?

I use one shot AF on my 7d with no issues.
Bill

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#3 Steve Williams

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Posted 13 November 2011 - 04:32 PM

Do most of you Canon users use One Shot AF or AI Servo when shooting underwater?


I use single shot AF for 90% of my shooting. The only time I change is to shoot fast moving big animals like dolphins or sharks(AI servo). I also use the rear button for AF, it feels like I have more control that way.

Cheers, (you'll love the 7D underwater)
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#4 Gudge

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Posted 13 November 2011 - 04:39 PM

I use single shot AF for 90% of my shooting. The only time I change is to shoot fast moving big animals like dolphins or sharks(AI servo). I also use the rear button for AF, it feels like I have more control that way.

What Steve said!
Canon 7D, Nauticam NA-7D housing, 2 x Inon Z240, 1 x Inon S2000, Tokina 10-17 & 12-24, Sigma 17-70 Macro, Tokina 35 macro, Canon 60 & 100 macro, Tamron 2X & Kenko 1.X Teleconverters.

#5 JimG

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Posted 14 November 2011 - 01:16 AM

I find Ai Servo pretty useful (and accurate) for macro stuff in conditions where it is difficult to maintain a precise distance and position. I dive a lot in the North Sea and often there is a slight swell or tide shoving me about. In better conditions, I only use Servo for moving subjects like others who have responded.

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#6 yahsemtough

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Posted 14 November 2011 - 05:45 AM

One shot most of the time for underwater.

Todd
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#7 newmanl

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Posted 14 November 2011 - 12:10 PM

One shot almost all the time, AI servo for special cases.

Hope that helps!