Its official. Oly AF sucks!

Started Sep 11, 2013 | Discussions
Big Ga
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Its official. Oly AF sucks!
Sep 11, 2013

ROTFLM... well you know the rest ...

In the original DPR hands on review of the EM1, they wrote:

"The way see it is this: if you're a Four Thirds lens owner and hoping for contemporary DSLR performance, you're going to be disappointed"

Which promptly got jumped on as a number of other sites seemed to be suggesting it was ballpark the same as normal Oly 4/3 cameras.

Well, DPR have gone and revisited this, and have posted an update:

"UPDATE:

Having gone back and spent some more time with an Olympus E-5, I'm inclined to be more positive about the E-M1's behaviour with Four Thirds lenses - not because it's better than I originally stated, but because the E-5 isn't as good as I'd previously thought"

See ... that's what happens when you spend too time reviewing things like D4 and 1DX cameras (or perhaps even any modern mid range APSc camera?).. one tends to forget... totally understandable.

Now ... for everyone on 1022. Put 2 and 2 together. I'll give you a clue. The answer isn't 5 ... LOL ....

eaa
eaa
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Re: Its official. Oly AF sucks!
In reply to Big Ga, Sep 11, 2013

Like DPR is the only reliable source in the world?
There are already lots of contradicting reviews out there, stating that it's not bad at all. You seriously didn't think a 1st generation PDAFOS (on sensor) system would rival the big guns ultimate state of the art native PDAF systems to a 100%, did you? PDAF systems that have been honed to perfection for decades, and spent millions of dollars in R&D into, and put exclusively into their top tier pro models, costing 5x the E-M1? Well, for pure speed that would not be very likely. But for front- and back-focus issues OTOH, I'd wager the E-M1 beats them hands down

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Gregm61
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Re: Its official. Oly AF sucks!
In reply to eaa, Sep 11, 2013

eaa wrote:

Like DPR is the only reliable source in the world?
There are already lots of contradicting reviews out there, stating that it's not bad at all. You seriously didn't think a 1st generation PDAFOS (on sensor) system would rival the big guns ultimate state of the art native PDAF systems to a 100%, did you?

And having used an E-5 for a while myself, I wouldn't be putting it up on a pedestal with any state of the art pdaf systems today The MSC-driven Micro Zuikos focus faster on micro bodies than the 12-60 and 50-200 SWD Zuikos ever did on my E-5.

Eric, I've missed looking at your awesome folders with images you capture with the big Olympus glass. I'm gonna go see if you've got some recent stuff out there. I can only imagine what files captured with an E-M1 and your 90-250mm f2.8 would look like.

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Messier Object
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you seem to
In reply to Big Ga, Sep 11, 2013

take great joy from reporting this 'news' , why is that ?

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tinternaut
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Re: The PDAF is likely as good as it's going to get
In reply to Big Ga, Sep 11, 2013

I don't see Olympus expending R&D costs in getting that side of AF any better than the E-3/5/30 (which are actually pretty good - like night and day compared to my E-510, but happen to be behind the CaNikon state of the art).

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WhyNot
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Too Bad!
In reply to Big Ga, Sep 11, 2013

I went back and reread the review and those results are very disappointing. I use the 14-54 Mk II and the ZD 40-150mm lenses regularly with the G2 and GX1 and they works very well and I would assume their focusing is improved on any of the newer m43 camera bodies. The 50mm macro and the 105mm Sigma macro are unacceptable and I would only use them as manual focus lenses on mFT bodies. The 70-300 will focus but compared to the E-30 the focus speed is like pouring molasses... … These results mean that when I upgrade the E-30 I'll probably be looking somewhere else as I don't expect Oly to deliver a 100 mm macro for the mFT system and I can always find an equivalent lens to the 70-300 on another system. …. But I will continue to read reviews and the opinions of others as they use the camera. …. Sorry to read these results as I was hoping for a better solution...

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SHood
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check out this review instead
In reply to WhyNot, Sep 11, 2013
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Big Ga
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"Please sir ... is the answer 5 ?"
In reply to eaa, Sep 11, 2013

eaa wrote:

Like DPR is the only reliable source in the world?
There are already lots of contradicting reviews out there, stating that it's not bad at all. You seriously didn't think a 1st generation PDAFOS (on sensor) system would rival the big guns ultimate state of the art native PDAF systems to a 100%, did you?

Who's talking about the EM1? (well ... you it seems, but you've missed the whole point!) We're talking E5 focus ...

PDAF systems that have been honed to perfection for decades, and spent millions of dollars in R&D into, and put exclusively into their top tier pro models, costing 5x the E-M1? Well, for pure speed that would not be very likely.

Exclusively into top tier models ?!? Bet cameras like the D7100 smoke it as well. And they're cheaper than an EM1

But for front- and back-focus issues OTOH, I'd wager the E-M1 beats them hands down

Well that's an interesting one. Personally, I'd think that I would actually take that wager (albeit for something small like a pint) if we were comparing like for like DOF. The extended DOF of 4/3 hides a multitude of sins and the mostly fast apertures used by FF users suffering focus issues makes things more obvious.

I'm not one of these evangelists that thinks CDAF is infallible. My take is that the AF with some lenses would be unacceptably slow if they were to go for maximum accuracy, so the algorithms have to do a certain amount of extrapolation and guessing to ensure an AF confirmation in an acceptable time. I don't believe they always get it right.

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Big Ga
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Re: you seem to
In reply to Messier Object, Sep 11, 2013

Messier Object wrote:

take great joy from reporting this 'news' , why is that ?

Well Doh! because its absolutely hilarious !!

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bofo777
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Re: check out this review instead
In reply to SHood, Sep 11, 2013

SHood wrote:

http://fourthirds-user.com/2013/09/olympus_omd_em1_handson_preview.php

http://fourthirds-user.com/2013/09/olympus_omd_em1_new_features_explained_.php/b

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Ian Burly writes in first fourthirds-users above "although a direct comparison with the E-5 the older camera edged out the EM-1 in extremely low light conditions"......So why is this camera such an upgrade when a lot of my photography with my fourthird lenses is in dim buildings and churches with no flash??? I guess the better ISO of the EM-1 in low light doesn't mean the AF is any better...John

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WhyNot
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In reply to SHood, Sep 11, 2013

Thanks for the references, they were interesting. However, the bottom line seemed to be PDAF is good enough now but if you want PDAF the equals or exceeds what you have on the E-5 or E-30 wait a couple generations...I was a little disappointed that the final PD focus wasn't CD for its accuracy even if it meant a slightly slower focus...

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Louis_Dobson
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Re: Its official. Oly AF sucks!
In reply to Big Ga, Sep 11, 2013

As I've said before, I had two D3s and one E3, and the E3 was right up there with the D3.
I dunno whether this was because the E3 suffered terrible sample variation and I had one of the few good ones, or if I had two duff D3s.  I mustard mitt I was very disappointed by the D3 rather than delighted by the E3, so perhaps the latter is more likely.
Anyway, both cameras are obsolete now.

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Messier Object
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Re: you seem to
In reply to Big Ga, Sep 11, 2013

Then your intention is to FLAME  and the MODs need to pay attention . . .

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JiminDenver
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Re: Its official. Oly AF sucks!
In reply to Louis_Dobson, Sep 11, 2013

I agree. Both my E 3 and E 5 are great at focusing. It was worth the money for the 12-60 and a second 50-200 although the original was no slouch on the E 3 even with the EC 20.

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LiquidSilver
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Actually, the reviewer was spoiled by E-m1 + m43 lens, that is "so fast" (nt)
In reply to Big Ga, Sep 12, 2013
No text.
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Danielvr
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Zuiko 50mm f2 AF speed
In reply to WhyNot, Sep 12, 2013

WhyNot wrote:

The 50mm macro and the 105mm Sigma macro are unacceptable and I would only use them as manual focus lenses on mFT bodies.

You may have missed this: http://www.youtube.com/watch?v=SEBz5h_1cHc

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alatchin
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Re: Its official. Oly AF sucks!
In reply to JiminDenver, Sep 12, 2013

I agree. Both my E 3 and E 5 are great at focusing. It was worth the money for the 12-60 and a second 50-200 although the original was no slouch on the E 3 even with the EC 20.

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I also had the a850 and the a900... My e3 put them to shame on a whole host of af areas.

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alatchin
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actually their cdaf system is state of the art.
In reply to Big Ga, Sep 12, 2013

ROTFLM... well you know the rest ...

In the original DPR hands on review of the EM1, they wrote:

"The way see it is this: if you're a Four Thirds lens owner and hoping for contemporary DSLR performance, you're going to be disappointed"

Which promptly got jumped on as a number of other sites seemed to be suggesting it was ballpark the same as normal Oly 4/3 cameras.

Well, DPR have gone and revisited this, and have posted an update:

"UPDATE:

Having gone back and spent some more time with an Olympus E-5, I'm inclined to be more positive about the E-M1's behaviour with Four Thirds lenses - not because it's better than I originally stated, but because the E-5 isn't as good as I'd previously thought"

See ... that's what happens when you spend too time reviewing things like D4 and 1DX cameras (or perhaps even any modern mid range APSc camera?).. one tends to forget... totally understandable.

Now ... for everyone on 1022. Put 2 and 2 together. I'll give you a clue. The answer isn't 5 ... LOL ....

But you can keep focusing on what you want to see.
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Raist3d
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Re: actually their cdaf system is state of the art.
In reply to alatchin, Sep 12, 2013

Well. But of course people with 4/3 lenses want to focus on PDaf with 4/3. Its the bridge after all no?

Here's what I say- if its better than e-5 I think that's pretty good (for me) as long as (I) can do it to -2 ev (which is what the e-3/e-5 where rated at), and two: does it accurately without back or front focus issues (main e-4 problem that varies to e-5 though e-5 was tweaked for better)
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WhyNot
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I did missed it ... Thanks
In reply to Danielvr, Sep 12, 2013

You're right, I did miss that video and the E-M1 in this video certainly focuses the 50mm lens much better than the G2. Now if the 105mm lens focuses that well I may have to start thinking about explaining this expense to my wife who will want a new ??????????     Well it may be worth considering...  but I'll wait until members of this forum start reporting their experiences with the camera.

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