D3100 Cannot AF in Live View ?


Jan 20, 2008
378
0
16
#1
Hi,

Just got a D3100 body only.

Notice that for my Sigma 17-70mm F2.8-4.5 HSM,
it cannot AF when in Live View.

For my Sigma 50-150mm F2.8,
it can AF both in normal and Live View.

The manual did not have much info on this aspect.
Anyone encounter similar limitations ?
 

ZerocoolAstra

Senior Member
Mar 13, 2008
9,522
0
0
rainy Singapore
#3
Hi,

Just got a D3100 body only.

Notice that for my Sigma 17-70mm F2.8-4.5 HSM,
it cannot AF when in Live View.

For my Sigma 50-150mm F2.8,
it can AF both in normal and Live View.

The manual did not have much info on this aspect.
Anyone encounter similar limitations ?
If your lens can AF when shooting normally (ie using VF), it puzzles me how come AF doesn't work in live view.
I don't have that lens or body, so I can't verify.
Interested to see if someone can shed some light on this.

No issues with my 3rd party lens (screw-driven AF) on my cam in live view.
 

#4
Hi,

Just got a D3100 body only.

Notice that for my Sigma 17-70mm F2.8-4.5 HSM,
it cannot AF when in Live View.

For my Sigma 50-150mm F2.8,
it can AF both in normal and Live View.

The manual did not have much info on this aspect.
Anyone encounter similar limitations ?
its e lens AF compatibility in live view.. my tamron 17-50 also cannot AF in liveview, whilst my sigma 70-200 f2.8 II can..
 

Jan 20, 2008
378
0
16
#5
its e lens AF compatibility in live view.. my tamron 17-50 also cannot AF in liveview, whilst my sigma 70-200 f2.8 II can..
I also suspect its the lens compatibiliy issue.
Looks like i'm not alone.
 

mco77

New Member
Apr 12, 2009
17
0
0
#6
My D3100's AF doesn't work with my sigma 50-150 (version I). Compatibility issues I guess.
 

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