70D why doesn't the af assist beam fire in live view?

Started Dec 11, 2013 | Questions
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Wolfkc Regular Member • Posts: 143
70D why doesn't the af assist beam fire in live view?

I haven't found anything specific that says that but it seems to be the case. Maybe there is a mode to manually select while in live view that will allow it?

I know it's really annoying, but sometimes in low light situations what else can you do? Maybe manual focus.

 Wolfkc's gear list:Wolfkc's gear list
Fujifilm XF1 Canon EOS 70D Canon EF-S 15-85mm f/3.5-5.6 IS USM Sigma 10-20mm F4-5.6 EX DC HSM Tamron SP AF 17-50mm F/2.8 XR Di II VC LD Aspherical (IF) +3 more
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Canon EOS 70D
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Lee Baby Simms Contributing Member • Posts: 827
Re: 70D why doesn't the af assist beam fire in live view?
1

menu > red menu #2 > Silent LV shoot, Disable

-- hide signature --

wedding shooter - canon gear (currently) - not a brand zealot

http://www.tomkphoto.com/canon-70d-wedding-photographer-review

 Lee Baby Simms's gear list:Lee Baby Simms's gear list
Canon EOS 70D Canon EOS 7D Mark II Canon EF 50mm f/1.2L USM Canon EF 85mm f/1.8 USM Canon EF 135mm f/2.0L USM +6 more
Wolfkc OP Regular Member • Posts: 143
Re: 70D why doesn't the af assist beam fire in live view?

Lee Baby Simms wrote:

menu > red menu #2 > Silent LV shoot, Disable

-- hide signature --

wedding shooter - canon gear (currently) - not a brand zealot

http://www.tomkphoto.com/canon-70d-wedding-photographer-review

I've tried all the Silent LV shoot options and none of them enable the assist. Also tried with and without the flash popped up. This is in P mode.

 Wolfkc's gear list:Wolfkc's gear list
Fujifilm XF1 Canon EOS 70D Canon EF-S 15-85mm f/3.5-5.6 IS USM Sigma 10-20mm F4-5.6 EX DC HSM Tamron SP AF 17-50mm F/2.8 XR Di II VC LD Aspherical (IF) +3 more
davel33 Senior Member • Posts: 1,179
Re: 70D why doesn't the af assist beam fire in live view?
2

The 70D will not AF assist in the LV PDAF mode except with the 320EX flash.  The 70D will use the LED on the 320EX for focus assist.

Dave

 davel33's gear list:davel33's gear list
Canon EOS 70D Canon EOS 7D Mark II Sigma 24-70mm F2.8 EX DG HSM Sigma 2x EX DG Tele Converter Sigma 50-150mm F2.8 EX DC APO OS HSM +19 more
TTMartin
TTMartin Veteran Member • Posts: 7,304
Re: 70D why doesn't the af assist beam fire in live view?

davel33 wrote:

The 70D will not AF assist in the LV PDAF mode except with the 320EX flash. The 70D will use the LED on the 320EX for focus assist.

Dave

That's good to know. Does it use the LED for focus assist using the optical viewfinder too? I don't know why Canon didn't design the 320EX to use the LED as a focus assist light from day one.

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Canon PowerShot S100 (2000) Canon PowerShot SD1000 Canon PowerShot G1 X Canon EOS 40D Canon EOS 400D +26 more
davel33 Senior Member • Posts: 1,179
Re: 70D why doesn't the af assist beam fire in live view?
1

TTMartin wrote:

davel33 wrote:

The 70D will not AF assist in the LV PDAF mode except with the 320EX flash. The 70D will use the LED on the 320EX for focus assist.

Dave

That's good to know. Does it use the LED for focus assist using the optical viewfinder too? I don't know why Canon didn't design the 320EX to use the LED as a focus assist light from day one.

It will use the LED in LV with both the CD focus and the new twin-pixel focus but never in any form of the Quick focus LV or VF  The 70D will also turn on the LED in video if needed and turn it off when not needed and I did not see a control for that other then the auto/man led switch on the flash.

Dave

 davel33's gear list:davel33's gear list
Canon EOS 70D Canon EOS 7D Mark II Sigma 24-70mm F2.8 EX DG HSM Sigma 2x EX DG Tele Converter Sigma 50-150mm F2.8 EX DC APO OS HSM +19 more
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