k-x bracketing bug?

yusuf · 06-04-2010, 01:43 AM

I keep k-x bracketing in 0,+1,-1 order. Sometime I only take one picture (instead of three) by releasing the shutter while cam is in bracketing mode. Now when I take the next picture, the camera resumes the bracketing order and the next picture comes over-exposed.

IMO, bracketing should only apply as long as shutter button is pressed. Instead, here bracketing order is applied across the shutter releases.

I feel it's a bug since camera should start normally for the next picture after shutter button was released.

Has anyone experienced the same?

Last edited by yusuf; 06-04-2010 at 01:52 AM.

matam · 06-04-2010, 02:45 AM

You may choose to not take all 3 exposition togheter with a single "click" but instead wait a little between the shoot and the camera knows exactly where to resume.
This seems more like a feature than a firmware bug to me .

Ira · 06-04-2010, 02:45 AM

I don't get it:

If you're set up for bracketing, and you get 0+- on three shots in a row, what do you think the camera is doing wrong?

yusuf · 06-04-2010, 03:53 AM

Originally posted by Ira

I don't get it:

If you're set up for bracketing, and you get 0+- on three shots in a row, what do you think the camera is doing wrong?

Bracketing function is three shots in row when button shutter release button is pressed - bracketing order should not be applied to photos taken after shutter release button is released. Even manual defines it as below:

Quote:

You can take three pictures continuously with different exposure when the shutter release button is pressed.

matam · 06-04-2010, 04:43 AM

Originally posted by yusuf

cut...bracketing order should not be applied to photos taken after shutter release button is released...cut

Why?
You're still shooting in auto-bracketing drive mode and that what's supposed to do.

yusuf · 06-04-2010, 05:22 AM

Originally posted by matam

Why?
You're still shooting in auto-bracketing drive mode and that what's supposed to do.

IMO that's not correct, when shutter is released, it should restore to normal order. Try with other cams, this is the behavior you will see.

matam · 06-04-2010, 05:36 AM

Ok, so you want the camera to reset the bracketing order if you depress the shutter button before the camera thake the 3 exposure right? (sorry i understanded that you didn't want the camera to continue shooting in bracketing mode

)
Just press "OK" twice after the shoot and you'll have the camera reset back the order.

yusuf · 06-04-2010, 06:41 AM

Originally posted by matam

Ok, so you want the camera to reset the bracketing order if you depress the shutter button before the camera thake the 3 exposure right? (sorry i understanded that you didn't want the camera to continue shooting in bracketing mode

)
Just press "OK" twice after the shoot and you'll have the camera reset back the order.

Why? it should reset by default

But seems like that is by design as I dig more into the manual

Quote:

When you take your finger off the shutter release button during Exposure
Bracketing, the exposure setting will remain effective for twice as much time
as the exposure metering timer (default setting is approx. 20 seconds)
(p.106) and you can take a picture at the next compensation value. In this
case, auto focusing works for each frame. After about twice as much time as
the exposure metering timer elapses, the camera returns to settings for
taking the first picture.

panoguy · 06-04-2010, 06:52 AM

Originally posted by yusuf

Why? it should reset by default

I also think it should make coffee and teleport me to Hawaii...

Originally posted by yusuf

But seems like that is by design as I dig more into the manual

kkoether · 06-04-2010, 08:22 AM

My K200D works the same way. I just try to remember to change the driver mode when I need to. I understand your opinon of how it should work and kind of agree but it is what it is so I've just learned to work with it. Nothing is ever perfect.

**ChipB** · 06-04-2010, 08:29 AM

A while back I bought a used K10D - after getting home and doing extensive testing, I thought I'd bought a lemon - the exposure's were all over the board!

Took me awhile to realize that auto-bracketing (5 shots) was turned on! Whew!!!

So, it seems like your "problem" is the way it works on several (if not all) the Pentax DSLRs. You selected the function - the camera gives you what you selected! Seems like it "works as advertised!!".

**Canada_Rockies** · 06-04-2010, 09:44 PM

This is by design. It has been this way with all Pentax models that have the bracketing function. It means that you don't have to switch the camera to continuous drive to take the three bracketed exposures. You can leisurely take your three or five exposures and not sweat it, or rely on continuous drive.

Ira · 06-05-2010, 11:41 AM

And when you think about, you're supposed to auto-bracket the same composition, so there's no logic to pulling the viewfinder away from your eye or taking your finger off the shutter.

If you want to do that, shoot manual.

Wheatfield · 06-05-2010, 11:57 AM

Originally posted by yusuf

Why? it should reset by default

It doesn't. Get used to it.

Entropy · 06-07-2010, 09:45 AM

Starting with the K20D (and I assume present in the K-7/K-x) there is a menu option to do "one touch" bracketing, where the full bracket is taken with just one shutter press.

Good when your bracket includes a 30 sec exposure that is getting auto-DFSed...

06-04-2010, 01:43 AM	#1
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497	k-x bracketing bug? I keep k-x bracketing in 0,+1,-1 order. Sometime I only take one picture (instead of three) by releasing the shutter while cam is in bracketing mode. Now when I take the next picture, the camera resumes the bracketing order and the next picture comes over-exposed. IMO, bracketing should only apply as long as shutter button is pressed. Instead, here bracketing order is applied across the shutter releases. I feel it's a bug since camera should start normally for the next picture after shutter button was released. Has anyone experienced the same? Last edited by yusuf; 06-04-2010 at 01:52 AM.

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06-04-2010, 02:45 AM	#2
matam Inactive Account Join Date: Mar 2010 Location: Berlin Posts: 112	You may choose to not take all 3 exposition togheter with a single "click" but instead wait a little between the shoot and the camera knows exactly where to resume. This seems more like a feature than a firmware bug to me .

06-04-2010, 02:45 AM	#3
Ira Inactive Account Join Date: Mar 2009 Location: Coral Springs, FL Photos: Gallery \| Albums Posts: 5,216	I don't get it: If you're set up for bracketing, and you get 0+- on three shots in a row, what do you think the camera is doing wrong?

06-04-2010, 03:53 AM	#4
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	Originally posted by Ira I don't get it: If you're set up for bracketing, and you get 0+- on three shots in a row, what do you think the camera is doing wrong? Bracketing function is three shots in row when button shutter release button is pressed - bracketing order should not be applied to photos taken after shutter release button is released. Even manual defines it as below: Quote: You can take three pictures continuously with different exposure when the shutter release button is pressed.

06-04-2010, 04:43 AM	#5
matam Inactive Account Join Date: Mar 2010 Location: Berlin Posts: 112	Originally posted by yusuf cut...bracketing order should not be applied to photos taken after shutter release button is released...cut Why? You're still shooting in auto-bracketing drive mode and that what's supposed to do.

06-04-2010, 05:22 AM	#6
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	Originally posted by matam Why? You're still shooting in auto-bracketing drive mode and that what's supposed to do. IMO that's not correct, when shutter is released, it should restore to normal order. Try with other cams, this is the behavior you will see.

06-04-2010, 05:36 AM	#7
matam Inactive Account Join Date: Mar 2010 Location: Berlin Posts: 112	Ok, so you want the camera to reset the bracketing order if you depress the shutter button before the camera thake the 3 exposure right? (sorry i understanded that you didn't want the camera to continue shooting in bracketing mode ) Just press "OK" twice after the shoot and you'll have the camera reset back the order.

06-04-2010, 06:41 AM	#8
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497 Original Poster	Originally posted by matam Ok, so you want the camera to reset the bracketing order if you depress the shutter button before the camera thake the 3 exposure right? (sorry i understanded that you didn't want the camera to continue shooting in bracketing mode ) Just press "OK" twice after the shoot and you'll have the camera reset back the order. Why? it should reset by default But seems like that is by design as I dig more into the manual Quote: When you take your finger off the shutter release button during Exposure Bracketing, the exposure setting will remain effective for twice as much time as the exposure metering timer (default setting is approx. 20 seconds) (p.106) and you can take a picture at the next compensation value. In this case, auto focusing works for each frame. After about twice as much time as the exposure metering timer elapses, the camera returns to settings for taking the first picture.

06-04-2010, 06:52 AM	#9
panoguy Pentaxian Join Date: Sep 2007 Location: Washington, D.C. Photos: Gallery \| Albums Posts: 3,327	Originally posted by yusuf Why? it should reset by default I also think it should make coffee and teleport me to Hawaii... Originally posted by yusuf But seems like that is by design as I dig more into the manual

06-04-2010, 08:22 AM	#10
kkoether Pentaxian Join Date: Jul 2008 Location: Huber Heights, OH, USA Photos: Gallery \| Albums Posts: 731	My K200D works the same way. I just try to remember to change the driver mode when I need to. I understand your opinon of how it should work and kind of agree but it is what it is so I've just learned to work with it. Nothing is ever perfect.

06-04-2010, 08:29 AM	#11
ChipB Site Supporter Join Date: Nov 2007 Location: Eau Claire, WI Photos: Gallery \| Albums Posts: 2,717	A while back I bought a used K10D - after getting home and doing extensive testing, I thought I'd bought a lemon - the exposure's were all over the board! Took me awhile to realize that auto-bracketing (5 shots) was turned on! Whew!!! So, it seems like your "problem" is the way it works on several (if not all) the Pentax DSLRs. You selected the function - the camera gives you what you selected! Seems like it "works as advertised!!".

06-04-2010, 09:44 PM	#12
Canada_Rockies Loyal Site Supporter Join Date: Nov 2007 Location: Sparwood, BC, Canada Photos: Gallery \| Albums Posts: 12,385	This is by design. It has been this way with all Pentax models that have the bracketing function. It means that you don't have to switch the camera to continuous drive to take the three bracketed exposures. You can leisurely take your three or five exposures and not sweat it, or rely on continuous drive.

06-05-2010, 11:41 AM	#13
Ira Inactive Account Join Date: Mar 2009 Location: Coral Springs, FL Photos: Gallery \| Albums Posts: 5,216	And when you think about, you're supposed to auto-bracket the same composition, so there's no logic to pulling the viewfinder away from your eye or taking your finger off the shutter. If you want to do that, shoot manual.

06-05-2010, 11:57 AM	#14
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,987	Originally posted by yusuf Why? it should reset by default It doesn't. Get used to it.

06-07-2010, 09:45 AM	#15
Entropy Veteran Member Join Date: Jun 2007 Location: Owego, NY Posts: 976	Starting with the K20D (and I assume present in the K-7/K-x) there is a menu option to do "one touch" bracketing, where the full bracket is taken with just one shutter press. Good when your bracket includes a 30 sec exposure that is getting auto-DFSed...