Shutter latency problem with 20D

[Screamer]

I searched for a while on this, with no luck.

Has anybody had any issues with shutter latency? Today my 20D started taking 1-2 seconds after focus lock to actually fire the shutter. It started with my 17-40L on it. I then moved to my 50 1.4 to make sure it wasn't a lens issue. It went back to normal for about 15 shots, then started slowing down again. :confused:

These shots were *not* in rapid succession, maybe one every 30 sec's to a minute....ruling out a buffer full issue.

I have no hacks installed, and have had it about 2 months....Firmware 2.0.0 is installed.

[bigun]

I havent had any problems with mine but I wonder if the batteries are low or getting bad contact. I know with osme electronic stuff if it acts up like this you can remove the batteries for a few minutes and reinstall and it may help stop the prob. Hope that helps.

Bigun...

[Screamer]

I thought about the battery too, but it was just pulled off of a full charge and I did reseat it. I should of mentioned that in my original post too.

I just re-installed the firmware and I will see if that helped.

[Simon Spiers]

I take it your not using a flash?

[Screamer]

Nope, no flash.

[mg09]

Hi Screamer,
I'm writing this at 4am so forgive me if you've been asked this before but... did you by any chance have AF set to AI Servo on a still subject? for some reason my 20d hates that on still subjects the bugger wont lock.


Rich

[etaf]

have you tried switching to manual everything - focus, exposure, flash off - everyhting in the camera and pure manual - so all the camera has to do is fire the shutter and see if it will take fast pictures then

[Simon Spiers]

1 Try another CF card
2 Restore factory defaults
3 Remove battery and wait 30 seconds then replace
4 send it back !

[rstuntz]

While I am a relative newbie to photography, I have the same issue with shutter latency when I am in AI Servo. Once out of servo, the problem goes away. Also, most low light situations create havoc focus speed and shutter latency.

[tim]

have you tried switching to manual everything - focus, exposure, flash off - everyhting in the camera and pure manual - so all the camera has to do is fire the shutter and see if it will take fast pictures then

Did this help?

While I am a relative newbie to photography, I have the same issue with shutter latency when I am in AI Servo. Once out of servo, the problem goes away. Also, most low light situations create havoc focus speed and shutter latency.

That's not an issue with the camera, it's an issue with your understanding of how it works. Read your manual again, have a bit of a read up here and on the net, then ask questions if you're still unsure how it works.

[Nightcrawler]

My brother-in-law was having an overexposure issue with flash on his 20D a week or so ago. Both of us took a look at it and could not figure out what it was. The issue went away when he went into the menu and reset all of the camera settings to factory defaults. So, I suppose you could give that a try to see if that will help.

[Screamer]

have you tried switching to manual everything - focus, exposure, flash off - everyhting in the camera and pure manual - so all the camera has to do is fire the shutter and see if it will take fast pictures then

Yep, I did all of that. It was still lagging. I was beginning to think that the shutter button itself had a problem and if it was still happening today, I was going to pick up a shutter release cable to confirm my suspiscion.

Today though, different story. It seems to be clippling right along. No changes other than re-flash of firmaware I did yesterday...same battery (without be re-charged.), same CF card (SanDisk Extreme III 1GB).

I'm going to see if I can re-produce it again in the next week. If not, cool!

Thanks All,

Phil

[Screamer]

Actually...

This is exactly what happened to me...

http://photography-on-the.net/forum/showthread.php?p=623553#post623553

[lostdoggy]

Could it be that you accidentally set the mirror lockup in the CFn???

[Screamer]

Could it be that you accidentally set the mirror lockup in the CFn???

Nope. no custom functions. I did a complete reset...See the other thread that I pointed out from today.

The 2nd paragraph is exactly the symptom.

http://photography-on-the.net/forum/showthread.php?p=623553#post623553

[chris clements]

'Latency' ?
You have a hidden or undeveloped shutter?
Can we have our language back, please?
(UK pedant)

[chris clements]

L A G

When you yanks invent, mangle or mis-use the Queen's English, why is it that your replacement word/phrase is always longer than the perfectly good correct one??

Brittania Rules (but not at B&H prices, unfortunately)

[chris clements]

I'm think perhaps he refers to a 'latency period,' a medical term used to describe a condition of dormancy before it manifests itself.

May I come to you next time Donald H Rumsfeld speaks?

[etaf]

when you said
No changes other than re-flash of firmaware I did yesterday
did it work OK following the firmware re-flash - because thats a big change potentially

[guitarman]

Could it be that you accidentally set the mirror lockup in the CFn???

Yeah if you had MLU set and the timer there would be a 2 second delay.

[lost]

Sorry, not sure what the confusion over latency is.

"la·ten·cy (ltn-s)
n.

1. The state of being latent.
2. In conditioning, the period of apparent inactivity between the time the stimulus is presented and the moment a response occurs."

Stimulus being shutter click, response being Shutter activation.

Bloo, it is not used just for medical terms, in the networking world we use rather frequently. Or should I say there is little latency between uses. :lol:

[lostdoggy]

Have try another lens??? May be the contacts are corroded??? How about bend battery compartment contacts???

[chris clements]

Ain't language great?
Been a tough day:- I must be jetlatented.

My dictionary was written before Bill Gates was god.

The press over here have annual 'Plain English' awards. Not sure you'd understand the concept in the USA.
... I'll get my coat

[Titus213]

Ain't language great?

Two peoples separated by a common language!

Perhaps this should have remained latent???

Present and accessible in the unconscious mind but not consciously expressed.

[OviV]

Been a tough day:- I must be jetlatented.

My dictionary was written before Bill Gates was god.

The press over here have annual 'Plain English' awards. Not sure you'd understand the concept in the USA.
... I'll get my coat

Well, there is your problem. You have your queen and we have our king (Bill Gates). He with the highest net worth may re-define the language. Her Majesty Queen Elizabeth is estimated to be worth around $500 Million whereas Bill is estimated to be worth between $55 to $100 Billion depending on who you ask. We win and therefore claim latency as ours to use in referring to a delay in response from electronic devices. :D :lol:

[booggerg]

usa pwns the brits anyways :wink:

[chris clements]

There are a lot of words being coopted industry and applied in unique and sometimes bizarre ways. This is a good example.

1. This is a good example of smoke & mirrors coming out of the back end of a cow: - TecchieSpeak trying to mystify a simple concept.
2. Bill Gates may have popularised the computer, but Jethro Tull was British and invented the seed drill. Whilst standing on one leg and selling more records than Karen Carpenter. Or Bill Gates.
3. In future I intend to throw the odd confabulated word or two into my postings.
4. Why did y'all throw perfectly good tea into the harbour?
5. Time for my medication

[Screamer]

This is getting way off topic...but, here is the definition from dictionary.com for latency...The context I used falls right into #2...

latency
n 1: (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head [syn: rotational latency (http://dictionary.reference.com/search?q=rotational%20latency)] 2: the time that elapses between a stimulus and the response to it [syn: reaction time (http://dictionary.reference.com/search?q=reaction%20time), response time (http://dictionary.reference.com/search?q=response%20time), latent period (http://dictionary.reference.com/search?q=latent%20period)] 3: the state of being not yet evident or active

Latency, in this context of this thread was the inactive delay between pressing the button and the shutter firing.

Sorry for the progressive use of the English language and the confusion it ensued. I'll go back to writing at the 8th grade level from here on out. :D

[booggerg]

1. This is a good example of smoke & mirrors coming out of the back end of a cow: - TecchieSpeak trying to mystify a simple concept.

If you have decently exposure to computer technology, then the word latency would not be so foreign to you, and using it would not really be an attempt to mystify a 'simple concept'


3. In future I intend to throw the odd confabulated word or two into my postings.

Then you might want to put your location into your profile, otherwise we might think you're crazy..

:lol: