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Frequent Contributor
echelonphoto
Posts: 46
Registered: ‎11-28-2012

Re: They will only respond when they know they can fix the pr...

I don't think its that simple....the af in low light isn't as great as they promote...so you still need af assist in those scenarios

and it just doesn't work on the 5d3 as well as it does on the mark2...I tried all options on my last evening outdoor shoot and

the camera just sucks.

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Frequent Contributor
echelonphoto
Posts: 46
Registered: ‎11-28-2012

Re: They will only respond when they know they can fix the pr...

Digital....I did start a tread at FM forums....mostly it was denied and poo pooed by their posters....made me wonder if there

are variations among the bodies

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Occasional Contributor
dll1477
Posts: 22
Registered: ‎11-29-2012

Re: They will only respond when they know they can fix the pr...

yes thats true there are two distinct problems:

 

1.  utilization of the AF-assist beam.  to the extent that the real problem is AF low light performance then perhaps #2 below is also important in this context, but my point here is that this particular test condition is easy to reproduce with great consistency, and there appears to be a marked lack of performance utilzing specific flash models, i.e 600 ex rt and 580 ex ii. 

 

2.  re:  FM forums and actual low light AF performance.  Yes, there is more variation here (RustyTheGeek returned his first 5D3 and the replacement worked better), and the tests exposed to date are all over the map without specifying the EV level, for example.  But yes, anectotally we have evidence (emperical at least) that the 5D3 accuracy comes at a penalty in terms of AF lock time in "low light" whatever that means to the user conducting the test.  Beyond the emperical and anectotal I have not seen a test constructed with repeatable consistency that shows "lesser" cameras performing better, i.e. under certain EV conditions within the specifications of both cameras, for example.

 

 

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Super Contributor
digital
Posts: 190
Registered: ‎11-11-2012

Re: They will only respond when they know they can fix the pr...

[ Edited ]

echelonphoto. I also did this with a link to Canon Rumours about the subject. Here is the FM one. 

 

 http://www.fredmiranda.com/forum/topic/1168424/0#11141105

 

 

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Frequent Contributor
Naomi
Posts: 115
Registered: ‎10-16-2012

Re: 5D3 + AF assist beam = slower focus

Canon is listening, and we appreciate your comments.

We are still investigating and any updates will be shared as information becomes available.

Thanks for your feedback and participation in our forum.

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Occasional Contributor
GIlmorePhoto
Posts: 7
Registered: ‎12-10-2012

Re: 5D3 + AF assist beam = slower focus

Fantastic!  Thanks for letting us know.  (I'm happy to send in my gear if you need to evaluate it and confirm noted behavior.)

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Occasional Contributor
dll1477
Posts: 22
Registered: ‎11-29-2012

Re: 5D3 + AF assist beam = slower focus

outstanding,  Naomi; this is awesome.  you just calmed a great many folks.  thank-you!  just to know that Canon is listening is great encouragment I cannot tell you how much that is appreciated

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Super Contributor
digital
Posts: 190
Registered: ‎11-11-2012

Re: 5D3 + AF assist beam = slower focus

Yes. Outstanding. Thanks Canon.

 

 

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Occasional Contributor
Carerra911
Posts: 19
Registered: ‎11-16-2012

Re: 5D3 + AF assist beam = slower focus

Thank you Naomi  for your reply, Its nice to know you are there, Look forward to hearing from you and to getting a conclusion to the problem,

 

Louis

www.louisamore.com
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Occasional Contributor
glongstaff
Posts: 15
Registered: ‎12-24-2012

Re: They will only respond when they know they can fix the pr...

to be honest I have been thinking of purchasing a MKIII, coming from an old 350D....and reading issues like this and the 'light leakage' makes me worried and will be holding off until further news..
EOS 5D MKIII + EF 24-105mm f/4L IS USM, Sigma DG 150-500 5-6.3 APO HSM, , EF 55-200mm 4.5-5.6 USM, Speedlite 430EXII

EOS 350D, EFS 18-55mm
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