Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-17-2009, 04:06 PM   #1
Veteran Member




Join Date: Jan 2008
Location: Southern California, USA
Photos: Gallery
Posts: 726
K20d Live View AF?

Quick question about K20D Live View,

while I can display the focus point and select it during LV mode,
can I use Auto Focus?
If yes, how do I do that?

So far I can only manually focus and zoom to confirm.

Thanks for the help,

02-17-2009, 04:39 PM   #2
Veteran Member
pentaxmz's Avatar

Join Date: Dec 2008
Location: Seattle
Posts: 647
QuoteOriginally posted by HermanLee Quote
Quick question about K20D Live View,

while I can display the focus point and select it during LV mode,
can I use Auto Focus?
If yes, how do I do that?

So far I can only manually focus and zoom to confirm.

Thanks for the help,
In this current model of K20D, you must use manual focusing when in live view. The K20D needs to evaluate the scene through the pentaprism. Since the mirror must go up (and block the prism), focusing is not possible.

See here https://www.pentaxforums.com/forums/pentax-dslr-discussion/51371-k20d-live-view-limited.html for another discussion about this feature.
02-17-2009, 04:41 PM   #3
Veteran Member




Join Date: Feb 2009
Posts: 437
Don't you press the AF button on the back???
02-17-2009, 04:58 PM   #4
Veteran Member




Join Date: Jan 2008
Location: Southern California, USA
Photos: Gallery
Posts: 726
Original Poster
QuoteOriginally posted by JHfwp Quote
Don't you press the AF button on the back???
You're right.
I tried to push the AF button on LV mode and it focused.

Thanks,

02-17-2009, 05:14 PM   #5
Veteran Member
pentaxmz's Avatar

Join Date: Dec 2008
Location: Seattle
Posts: 647
QuoteOriginally posted by HermanLee Quote
You're right.
I tried to push the AF button on LV mode and it focused.

Thanks,
But that flips the mirror back down.

It's not really useful unless you are shooting a steady scene.

But, sorry if I didn't mention this. I guess I erroneously assumed you had done that.
02-17-2009, 05:32 PM   #6
Pentaxian
Arpe's Avatar

Join Date: Sep 2006
Location: New Zealand
Photos: Gallery | Albums
Posts: 4,331
QuoteOriginally posted by JHfwp Quote
Don't you press the AF button on the back???
That's what I've done.
02-17-2009, 10:05 PM   #7
Veteran Member
rfortson's Avatar

Join Date: Sep 2006
Location: Houston TX
Photos: Gallery
Posts: 2,129
QuoteOriginally posted by pentaxmz Quote
In this current model of K20D, you must use manual focusing when in live view. The K20D needs to evaluate the scene through the pentaprism. Since the mirror must go up (and block the prism), focusing is not possible.

See here https://www.pentaxforums.com/forums/pentax-dslr-discussion/51371-k20d-live-view-limited.html for another discussion about this feature.
No you don't. You press the AF button on the back of the camera and the camera will (eventually) autofocus.
02-17-2009, 11:02 PM   #8
Veteran Member
pentaxmz's Avatar

Join Date: Dec 2008
Location: Seattle
Posts: 647
QuoteOriginally posted by rfortson Quote
No you don't. You press the AF button on the back of the camera and the camera will (eventually) autofocus.
But when you press the AF button, live view is temporarily turned off, the mirror goes down, it focuses, the mirror goes up, and live view is re-engaged.

That is hardly real-time focusing in live view and that is why I said, use manual focus because it's more practical if you are constantly shifting focus. One shot AF is otherwise not a big deal.

02-18-2009, 12:05 AM   #9
Veteran Member
jct us101's Avatar

Join Date: Jun 2008
Location: Rohnert Park, CA
Posts: 3,695
Well that's what most people tend to use LV for. Especially when they're trying to get a single shot of a scene that they can't get to through the viewfinder.
02-18-2009, 11:03 AM   #10
Veteran Member
rfortson's Avatar

Join Date: Sep 2006
Location: Houston TX
Photos: Gallery
Posts: 2,129
QuoteOriginally posted by pentaxmz Quote
In this current model of K20D, you must use manual focusing when in live view. The K20D needs to evaluate the scene through the pentaprism. Since the mirror must go up (and block the prism), focusing is not possible.

See here https://www.pentaxforums.com/forums/pentax-dslr-discussion/51371-k20d-live-view-limited.html for another discussion about this feature.
Well, here's what you said in black and white, which is wrong as many pointed out. (emphasis added)

You can autofocus in live view, which was the OP's question. There was no qualitative discussion requested, though clarification on exactly how it works is useful. You're certainly not going to be using it for action shots, as just about every review posted points out. However, for odd angles, or tripod shots, it can be useful. Those are the few times I've used it.
02-18-2009, 11:36 AM   #11
Veteran Member




Join Date: Feb 2009
Posts: 437
It's easy to get mixed up over one of most useless features on the K20D. To be honest, I've found using Live View to focus manually is more useful than using it w/ AF. But that's not saying much. Maybe it's great shooting macro???
02-18-2009, 03:27 PM   #12
Inactive Account




Join Date: Jul 2007
Location: London
Posts: 1,067
Hi HermanLee

Interestingly it was the particularly ham-fisted implementation of the live-view "feature" combined with the stupid dark frame subtraction issue that eventually put me off upgrading from the K10D to the K20D in the first place ! I take quite a lot of night city shots on my travels and regrettably the dark frame process on the K20D cannot be turned off, which was sadly the final deal-breaker for me. Let's hope that these irritating foibles are successfully addressed in the forthcoming model ?

Best regards,
Richard
02-18-2009, 05:30 PM   #13
Pentaxian
falconeye's Avatar

Join Date: Jan 2008
Location: Munich, Alps, Germany
Photos: Gallery
Posts: 6,862
QuoteOriginally posted by JHfwp Quote
I've found using Live View to focus manually is more useful than using it w/ AF.
As this is all about LiveView and focussing...
Many use the LiveView to achieve precise focus when focussing manually. It is therefore interesting to note that LiveView uses the working aperture, i.e., not fully open. Sometimes, it is worth to focus manually with zoomed LiveView, fully open, and then stop down to shoot w/o LV. Which unfortunately, makes the feature even more cumbersome to use. But hey, it is there at least
02-18-2009, 09:29 PM   #14
Veteran Member




Join Date: Jan 2008
Location: Southern California, USA
Photos: Gallery
Posts: 726
Original Poster
Hi guys,

I've been playing around with LV mode these days and my conclusion so far is:
LV in DSLR is Great no matter how less sophisticated it is in K20D but I love it.

I compared this with my previous K100D where there is no LV at all.
It was so frustrating especially that the viewfinder on K100D is not as bright as K20D.

So now, if I want to take a snapshot with my K20D, I can use just one hand.
Yes, correct. One hand only, considering I'm using my prime lenses. I don't think I can hold one hand with FA* 80-200/2.8 attached yet

For manual focusing, here is how I see it.
With K100D, when I want to use MF, I can only rely on viewfinder which is not so bright either and in a dim lit room, it will be very challenging.
Now, with K20D, when I want to use MF and can't see clearly, I'll just turn the LV on and foila..there goes 2.7" Viewfinder.

Yes, the LV function is not as great as my Fuji F100fd that can detect 10 faces at once. But it's a great help for me who just upgraded from a camera with no LV at all.

So the conclusion is, it works both way with either focusing methods: Manual or Auto.
02-18-2009, 09:52 PM   #15
Veteran Member




Join Date: Feb 2009
Posts: 437
QuoteOriginally posted by falconeye Quote
As this is all about LiveView and focussing...
Many use the LiveView to achieve precise focus when focussing manually. It is therefore interesting to note that LiveView uses the working aperture, i.e., not fully open. Sometimes, it is worth to focus manually with zoomed LiveView, fully open, and then stop down to shoot w/o LV. Which unfortunately, makes the feature even more cumbersome to use. But hey, it is there at least

Good point. I never thought about that.
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!
camera, dslr, focus, k20d, photography, view
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
k20d dof in live view? slr Pentax DSLR Discussion 5 11-09-2009 01:34 AM
K20d Live View Question Rush2112 Pentax DSLR Discussion 3 07-05-2009 07:13 AM
K20D live view does not work mccarvindh Troubleshooting and Beginner Help 2 05-25-2009 11:05 AM
K20D - AF in Live View Pixguru Troubleshooting and Beginner Help 2 04-04-2009 08:50 PM
live View on the K20D Ed in GA Pentax DSLR Discussion 3 04-05-2008 12:48 PM



All times are GMT -7. The time now is 01:46 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