Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-18-2007, 06:02 AM   #1
Forum Member




Join Date: Jun 2007
Location: Oklahoma City, OK
Photos: Gallery
Posts: 89
K10D AE lock question

Any way I can set the camera to lock exposure with the shutter release without also locking auto focus? I can lock both with the Custom settings. But if I set the lens to manual focus (which I prefer) the AE lock is disabled.

I know I can do it with the AE lock button but that forces me to hold the camera awkwardly and uncomfortably.

I do a lot of static street landscapes. I first focus the lens manually, then I re-frame to pick a metering (center weighted) area, lock exposure, re-frame, and shoot.

I know I can set the mode to "M", but then I hate to be fiddling with two dials, one for the ss and one for the f/stop.

By the way, I absolutely hate the thousands of possible options this and other modern digital SLRs allow. I'm thoroughly confused. I'm from the old Pentax K1000school, I guess.

Thanks for your help.

06-18-2007, 10:53 AM   #2
Senior Member




Join Date: May 2007
Location: Netherlands, Eindhoven
Posts: 133
AFAIK you can change the focus manually after the camera gets focus lock. So even if you reframe and get AE lock (and do metering some other direction), then reframe again - you can still alter the focus position by just twisting the focus ring. Because the camera still has lock, you can shoot even if the camera is in AF-S mode.

I hope this does help a bit :-) It could be that I am just misinterpreting the question, if so by all means correct me!

Also, it does depends on the lens you have. I do know that the DA 16-45 and the DA 18-55 have this option (it's called hyper-manual or something? I'm not sure how they call it. It just means you can instant-change the focus even after camera has got AF lock, and it won't refocus if you shoot and it sees it doesn't have AF lock anymore).
06-18-2007, 11:37 AM   #3
Veteran Member
blende8's Avatar

Join Date: Feb 2007
Location: Bremen, Germany
Photos: Albums
Posts: 1,484
QuoteOriginally posted by bobjames Quote
By the way, I absolutely hate the thousands of possible options this and other modern digital SLRs allow. I'm thoroughly confused. I'm from the old Pentax K1000school, I guess.
Be happy!
The K10D does not have the option you requested.
06-18-2007, 11:39 AM   #4
Veteran Member
kurt's Avatar

Join Date: Mar 2007
Location: Hyvinkää, Suomi (Finland)
Photos: Gallery
Posts: 670
Hi,

Maybe I misunderstood and sorry for that, but you can lock the exposure (AE-L) and then recompose and refocus your frame. Well, I tested just few seconds ago. Like 'barendvl' mentioned after focusing (or refocusing) you can manually change the focus. This works for DA lenses and manual & A-lenses, maybe for FA lenses too, but I do not have those.

To measure the exposure and lock it, you do not have to have a correct focus. The measurement is not dependent on focus ... as far as I know ;-)

06-18-2007, 12:28 PM   #5
Forum Member




Join Date: Jun 2007
Location: Oklahoma City, OK
Photos: Gallery
Posts: 89
Original Poster
QuoteOriginally posted by kurt Quote
Hi,

Maybe I misunderstood and sorry for that, but you can lock the exposure (AE-L) and then recompose and refocus your frame. Well, I tested just few seconds ago. Like 'barendvl' mentioned after focusing (or refocusing) you can manually change the focus. This works for DA lenses and manual & A-lenses, maybe for FA lenses too, but I do not have those.

To measure the exposure and lock it, you do not have to have a correct focus. The measurement is not dependent on focus ... as far as I know ;-)

I'm shooting with a Tamron SP zoom - if I set it to auto-focus I can't budge the focusing ring manually.
06-18-2007, 12:43 PM   #6
Veteran Member
borno's Avatar

Join Date: Nov 2006
Location: md-usa
Photos: Gallery | Albums
Posts: 2,580
Hey bob,
I think M mode would be easiest, just set aperture you want and use green button to find shutter speed. It won't change unless you want it to.
06-18-2007, 02:08 PM   #7
Inactive Account




Join Date: Oct 2006
Location: Boise, Idaho
Photos: Gallery | Albums
Posts: 1,414
Tom has the right idea. In the custom functions where it says "Green button in TAv & M" to option 2, Tv shift, so that your aperture doesn't change. Simple touch of the green button sets the shutter speed and nothing will change until you tell it to.
06-18-2007, 05:58 PM   #8
Forum Member




Join Date: Jun 2007
Location: Oklahoma City, OK
Photos: Gallery
Posts: 89
Original Poster
QuoteOriginally posted by davemdsn Quote
Tom has the right idea. In the custom functions where it says "Green button in TAv & M" to option 2, Tv shift, so that your aperture doesn't change. Simple touch of the green button sets the shutter speed and nothing will change until you tell it to.
Yes, I think that'll work for me. I didn't even know the green button existed (what else don't I know??). I'll do it the other way around, though, set it to option 3 to fix the shutter speed (I'm shooting handheld) and change the aperture.

Thank you all!

06-18-2007, 06:03 PM   #9
Inactive Account




Join Date: Oct 2006
Location: Boise, Idaho
Photos: Gallery | Albums
Posts: 1,414
Glad to help.
06-19-2007, 12:39 AM   #10
Veteran Member
blende8's Avatar

Join Date: Feb 2007
Location: Bremen, Germany
Photos: Albums
Posts: 1,484
QuoteOriginally posted by bobjames Quote
Yes, I think that'll work for me. I didn't even know the green button existed
Two comments:
1. There's not much difference to press the green button or the AE-L button.
2. In M you do not have EV-compensation.
06-19-2007, 06:59 PM   #11
New Member




Join Date: Jun 2007
Location: London
Photos: Gallery
Posts: 22
QuoteOriginally posted by bobjames Quote
Yes, I think that'll work for me. I didn't even know the green button existed (what else don't I know??). I'll do it the other way around, though, set it to option 3 to fix the shutter speed (I'm shooting handheld) and change the aperture.

Thank you all!
Lame as this may sound, the green button is one of the reasons I bought a K10D - that and the funky modes like TAv which I really find useful. Genius in fact.
06-19-2007, 08:24 PM   #12
Inactive Account




Join Date: Oct 2006
Location: Boise, Idaho
Photos: Gallery | Albums
Posts: 1,414
QuoteOriginally posted by blende8 Quote
Two comments:
1. There's not much difference to press the green button or the AE-L button.
2. In M you do not have EV-compensation.
1. Actually yes there is. I, for one, am left eyed. This means that my right thumb has to stay out of my noses way. Much easier to reach the green button for me.

2. Actually yes you do. Manual is the original EV compensation. Turn either dial and you have compensated the EV.
06-19-2007, 11:13 PM   #13
Veteran Member
blende8's Avatar

Join Date: Feb 2007
Location: Bremen, Germany
Photos: Albums
Posts: 1,484
QuoteOriginally posted by davemdsn Quote
2. Actually yes you do. Manual is the original EV compensation. Turn either dial and you have compensated the EV.
Well, ok, this is certainly possible, but you have to dial this in for every image anew. If you have e.g. a lens that needs -0.7 EV as a constant, this is a problem.
06-20-2007, 07:46 AM   #14
Inactive Account




Join Date: Oct 2006
Location: Boise, Idaho
Photos: Gallery | Albums
Posts: 1,414
QuoteOriginally posted by blende8 Quote
Well, ok, this is certainly possible, but you have to dial this in for every image anew. If you have e.g. a lens that needs -0.7 EV as a constant, this is a problem.
That is an excellent point. I don't have a lens that makes me do that so I have not run accross it, but it does happen. The OP was about shooting static street scenes so having to set it anew wouldn't be a problem.
06-20-2007, 11:04 PM   #15
Veteran Member




Join Date: Nov 2006
Location: Hong Kong
Posts: 1,934
I can't get your question as you say you use MF, so the AE-lock and AF lock (with AE lock enabled altogether) with the shutter release button will be irrelevant for your case, as it will not affect the MF anyway.

Also, the AE-L button doe shave a timer. You need not to hold it all the time before taking the shot.


QuoteOriginally posted by bobjames Quote
Any way I can set the camera to lock exposure with the shutter release without also locking auto focus? I can lock both with the Custom settings. But if I set the lens to manual focus (which I prefer) the AE lock is disabled.

I know I can do it with the AE lock button but that forces me to hold the camera awkwardly and uncomfortably.

I do a lot of static street landscapes. I first focus the lens manually, then I re-frame to pick a metering (center weighted) area, lock exposure, re-frame, and shoot.

I know I can set the mode to "M", but then I hate to be fiddling with two dials, one for the ss and one for the f/stop.

By the way, I absolutely hate the thousands of possible options this and other modern digital SLRs allow. I'm thoroughly confused. I'm from the old Pentax K1000school, I guess.

Thanks for your help.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
ae, camera, dslr, exposure, focus, lens, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K7 question: AF button does not lock AE when configured to do so fporter Pentax DSLR Discussion 9 07-02-2010 01:25 PM
Exposure lock - problem solving question maxmagnum Troubleshooting and Beginner Help 6 12-23-2009 11:47 PM
K10D mirror lock-up DanLoc78 Pentax DSLR Discussion 2 08-04-2009 09:45 AM
How does AE-lock work on a K10D dresden_phoenix Pentax DSLR Discussion 6 01-28-2008 06:14 PM
K100D question about AE lock leaton Pentax DSLR Discussion 3 10-07-2006 09:55 PM



All times are GMT -7. The time now is 10:00 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top