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X-Pro1 focus delay

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mkrigsman

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There is sometimes a delay between the time I press the shutter halfway, and the moment that focus seeking starts.

In other words, sometimes (not always), I press the shutter halfway and the camera freezes for half a second before starting to seek focus. Other times, focus seeking starts immediately on pressing the shutter switch halfway.

Anyone else experience this?
 
Yes, it does that with all 3 lenses
With me, it's mostly on highly contrasty situations
This is very unpleasant, and up to now I didn't find any way to circumvent that
Wondering if some found a solution ??
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Good judgment comes from experience
Experience comes from bad judgment
 
I've said it before on these forums but for such an expensive camera it is reasonable for a customer to expect the performance to match its peers. Image quality is generally great but performance is certainly not the strongest area. Is it a show stopper? Of course not. Should it be better with such a recent camera? In my opinion yes. Who out there wouldn't rush to download the latest firmware if Fuji announced it would match the performance of the best in its class? Don't get me wrong - it's a great camera but the focus performance and lag can be a real pain at times and quite rightly these weaknesses are regularly referenced in professional and user reviews.
 
It would be resonable to expect other cameras to have similar IQ, but they don't, at least not at ISO400+.

You will never have everything, so just decide what matters and stop making out like you don't have choices.
MattiusGB said:
I've said it before on these forums but for such an expensive camera it is reasonable for a customer to expect the performance to match its peers. Image quality is generally great but performance is certainly not the strongest area. Is it a show stopper? Of course not. Should it be better with such a recent camera? In my opinion yes. Who out there wouldn't rush to download the latest firmware if Fuji announced it would match the performance of the best in its class? Don't get me wrong - it's a great camera but the focus performance and lag can be a real pain at times and quite rightly these weaknesses are regularly referenced in professional and user reviews.
Click to expand...
 
Xpro 1 is really for when you have time to think about a shot and then taking your time taking that shot.

Generally a good thing, but if you plan on shooting lots of moving subjects then it's not ideal.
 
I was talking about positive and constructive solutions..

re read your prose and make your own judgment about the quality of your advices...

:-)
--
Good judgment comes from experience
Experience comes from bad judgment
 
dogcow23 said:
Xpro 1 is really for when you have time to think about a shot and then taking your time taking that shot.

Generally a good thing, but if you plan on shooting lots of moving subjects then it's not ideal.
Click to expand...
If I wanted to take shots of moving subjects, which I do a lot for non-hobby related reasons, no MILC camera except the N1 is any use at taking photos of moving objects, and quite frankly neither are most entry level SLRs.

I keep a D700 on hand for that, but seriously if you were going to put someone off for that reason, then you should not be recommending a NEX7 as a replacement.
 
Ensure that all of your power save function and are off. There shouldn't be a delay between pressing the shutter and the start of focusing. I have had the X-Pro since March and have never experienced that unless the camera was in stand by or power save was enabled.

This camera is unique in its approach to focusing but in no way does it hold me back and my keeper rate is the same as my previous Canon 5D setup in any case.
 
I'm not sure I've had that specific delay in initiation of focus. However, there is no doubt focus is the fatal flaw of this camera. No getting around that. In the real world subjects often move, have poor contrast or exist in low lighting... and this camera is a real pain to wrestle into focus compliance. A definite disappointment. Good thing the image quality is worth the short coming.
 
I disagree - one of the most obvious uses of the X-Pro1 is for street photography where quick focus can be somewhat essential.

It's also clearly tuned (like most Fujis) for skin tones, meaning likely subjects are potentially moving people and fast moving children.

In short, faster auto-focus (or rather, auto-focus that locks faster) would clearly be indicated. I don't think one can argue it's really a "still life" camera only.

That said, this is a well beaten horse. There's really not much point in hashing this over - Fuji will or won't fix it in this version or the next. Another 10 threads on it are unlikely to change that.

--
Matt Fahrner
http://boinkphoto.com
 
As a confirmation I just conducted some more trials : there is virtually no lag to START the AF process outdoors abd indoors when the contrats is not too big

Outdoors if you have a foeground in shadow and the background in brilliant sun, there is definitly a 1 second delay BEFORE the AF process starts

I am not talking at all about speed of the AF but the lag between half press and the start of the AF process

All 3 lenses give the same behaviour, and the X100 behaves similarly.
The camera is frozen during 1 sec in contrasty situations, a kind of inertia.
Good judgment comes from experience
Experience comes from bad judgment
 
Street photography is definitely one of the most obvious uses for the X-pro1, but zone focus is also the traditional technique for achieving quick focus and the X-pro1 does fine with this. It will do better with lenses that have a DOF scale like their new 14mm or legacy glass. When you think of the best cameras for street photography, the X-pro1 and the X-100 are the only ones that even have AF.
boinkphoto said:
I disagree - one of the most obvious uses of the X-Pro1 is for street photography where quick focus can be somewhat essential.

It's also clearly tuned (like most Fujis) for skin tones, meaning likely subjects are potentially moving people and fast moving children.

In short, faster auto-focus (or rather, auto-focus that locks faster) would clearly be indicated. I don't think one can argue it's really a "still life" camera only.

That said, this is a well beaten horse. There's really not much point in hashing this over - Fuji will or won't fix it in this version or the next. Another 10 threads on it are unlikely to change that.

--
Matt Fahrner
http://boinkphoto.com
Click to expand...
 
I have been using this camera for 6 months shooting street at night and in the evenings with great results... when I rarely do get out in the day I can't really find anything to even complain about from a speed perspective (18 & 35).

Its not the fastest AF in the business but its very capable with the proper technique. Could it use impovment? Without a doubt and I hope Fuji does make FW improvments but in the end the proof in output and I like what I see.
 
You're findings are corect, I have the same behavior.

I find it to be the biggest flaw in the current firmware implementation. It's not the AF speed, it's the delay. It makes the camera unreliable and this is something I never encountered in the past cameras I've owned.
I've shelved the X-Pro until a firmware update fixes this.

I don't have an adaptor but I believe that there's no lag when using a manual lens with an adaptor.
 
Apparently the delay in high contrast situations is linked to some adjustment of histogram, because on the X 100 you can clearly hear the aperture blades working where in the x pro the diaphragm is now very quiet...
i don't know what these cameras are computing during one second

but like you, it gives me the feeling that the lag before focusing is an element that makes the process unreliable
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Good judgment comes from experience
Experience comes from bad judgment
 
Im not 100% sure but I think I am getting shot delay purely for exposure hunt. ie I shoot with autofocus on single push to AF-L button. Exposure is Aperture priority. In high contrast situations I get shutter delay many are posting about.. but just for exposure - the focus has already been set.

very unpleasant.

I wonder if there is some kind of processor panic! How could that happen?

I think we are due a firmware update.
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http://www.flickr.com/photos/keithernesto/
 
Yes it's exposure delay not AF delay, I also experienced tha
--
Good judgment comes from experience
Experience comes from bad judgment
 
that with already acquired focus, very unpleasant indeed§
--
Good judgment comes from experience
Experience comes from bad judgment
 
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