Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-06-2008, 12:27 AM   #16
Pentaxian




Join Date: Apr 2007
Location: Sweden
Posts: 1,940
QuoteOriginally posted by JMS Quote
Heck with that, the finger just mashes the shutter release.
As little laker said, we already have that. It’s called “focus trap”.

02-06-2008, 10:09 AM   #17
Forum Member
dwhopson's Avatar

Join Date: Jan 2008
Location: Greensboro, NC
Posts: 76
Is "trap focus" available on the K100D super? I know I've seen people talk about it on the K10D... If so, how do I set it up on the K100D?

The next question is...is it accurate?

I've been trying to use the focus confirmation beep/green light with k-mount 28mm f2.8 and 50mm f/2.0 lenses and haven't gotten as "crispy" a shot as I'd like. If I continue to work at the focus I can get the focus detail I'm looking for, but it isn't necessarily confirmed with the beep/green light.

Could this be a side affect of somewhat low interior lighting?
02-06-2008, 10:22 AM   #18
Veteran Member




Join Date: Jan 2008
Location: Ste-Anne des Plaines, Qc., Canada
Posts: 2,014
If I am not mistaken, only the center focus point on the K10d will work with a manual lens.
02-06-2008, 02:08 PM   #19
Red
Senior Member




Join Date: Nov 2007
Location: Suwanee, GA USA
Posts: 153
QuoteOriginally posted by flyer Quote
If I am not mistaken, only the center focus point on the K10d will work with a manual lens.
I was thinking the same thing. It alerts you but doesn't indicate what is in focus.

02-06-2008, 07:42 PM   #20
Forum Member
dwhopson's Avatar

Join Date: Jan 2008
Location: Greensboro, NC
Posts: 76
Ok....I understand how the "trap focus" capture works now.

(Took me a minute to figure it out....I'm a little slow sometimes )

I see if I'm very slow in adjusting the focus, it comes pretty darn close to being spot-on.

Cool...I learned something!
02-06-2008, 10:04 PM   #21
Inactive Account




Join Date: Jan 2008
Location: Orlando, FL
Posts: 37
Original Poster
QuoteOriginally posted by flyer Quote
If I am not mistaken, only the center focus point on the K10d will work with a manual lens.
Wow!! had an unexpected result and had to delete test and retype my message, it appears to work for both Auto and Center focus, also it's like the trap focus is like a "single focus" and not continuous, I had to keep pushing 1/2 way down on the shutter button a bunch. My expected result was that only the center would work, or even on auto it would only try and detect a center focus, but I was wrong!!
02-06-2008, 10:19 PM   #22
Loyal Site Supporter
Canada_Rockies's Avatar

Join Date: Nov 2007
Location: Sparwood, BC, Canada
Photos: Gallery | Albums
Posts: 9,535
QuoteOriginally posted by nex1 Quote
Wow!! had an unexpected result and had to delete test and retype my message, it appears to work for both Auto and Center focus, also it's like the trap focus is like a "single focus" and not continuous, I had to keep pushing 1/2 way down on the shutter button a bunch. My expected result was that only the center would work, or even on auto it would only try and detect a center focus, but I was wrong!!
Trap in focus works best for me by holding the shutter release all the way down. Moving the camera, or waiting for the subject, with the center focus point directed at what you want in focus will trip the shutter at the exact point of focus. I use this method constantly with my M 100/4 macro when I am using it hand held.

I first tested this when I got my SF-1 by setting it up at a hummingbird feeder. It took three in focus shots of the local fast movers while I ate supper, using a locked down release cord.
02-07-2008, 12:44 AM   #23
Pentaxian




Join Date: Apr 2007
Location: Sweden
Posts: 1,940
QuoteOriginally posted by Red Quote
I was thinking the same thing. It alerts you but doesn't indicate what is in focus.
A green dot says you are in focus, a beep says you are in focus, a red square tells you where the focus is, and the camera can even release the shutter for you when in focus. If that isn’t enough help with manual focus, then maybe manual lenses aren’t your cup of tea.

02-07-2008, 12:46 AM   #24
Senior Member




Join Date: Jul 2007
Location: Quezon City, Philippines
Photos: Gallery | Albums
Posts: 142
QuoteOriginally posted by marcdsgn Quote
I hear there's a new model coming out for those with poor eyesight and hearing: Once the lens is focussed, a little finger shoots out and pokes you in the eye.
this is a niftier feature
02-07-2008, 02:10 AM   #25
Inactive Account




Join Date: Jan 2008
Location: Orlando, FL
Posts: 37
Original Poster
QuoteOriginally posted by Gimbal Quote
A green dot says you are in focus, a beep says you are in focus, a red square tells you where the focus is, and the camera can even release the shutter for you when in focus. If that isn’t enough help with manual focus, then maybe manual lenses aren’t your cup of tea.
"can even release the shutter for you when in focus" can the K10D do this? if so how? that sounds neat. I've even read the field guide for it, I don't recall this feature.
02-07-2008, 02:39 AM   #26
Pentaxian




Join Date: Apr 2007
Location: Sweden
Posts: 1,940
Yes, that’s the ”focus trap” function, it only works with manual focus lenses though. Set the focus switch on AF.S and press (and hold down) the shutter button, then turn the focus ring or move the camera or the object, whenever focus is found the shutter is released.

Read Canada_Rockies post again on how he “traps” birds when they fly into focus.
02-07-2008, 02:59 AM   #27
Inactive Account




Join Date: Jan 2008
Location: Orlando, FL
Posts: 37
Original Poster
Holy crap that is amazing....
...... I just reread Canada_Rockies's post, NOW I completely understand it!
I love this message board.......
the possibilities of the usefulness of this application are endless.... excuse me while I go take over the world.....

Last edited by nex1; 02-07-2008 at 03:05 AM.
02-07-2008, 01:36 PM   #28
Veteran Member
bimjo's Avatar

Join Date: Jan 2008
Location: Pasco, WA
Posts: 967
QuoteOriginally posted by nex1 Quote
Holy crap that is amazing....
...... I just reread Canada_Rockies's post, NOW I completely understand it!
I love this message board.......
the possibilities of the usefulness of this application are endless.... excuse me while I go take over the world.....
It'll be a much smoother conquest with a cable release.
02-07-2008, 04:34 PM   #29
New Member




Join Date: Jan 2008
Location: Cheshire UK
Photos: Gallery
Posts: 20
QuoteOriginally posted by little laker Quote
That's where focus lock works. Switch the camera to AF and if the rest of the settings are right it'll only take a picture at that point.
You can also set the OK button so it temporarily disables AF; so if you want to your focal point to be somewhere other than at the little red dot it's only one press of a button away.

And this is on the humble K100D Super!
02-07-2008, 05:06 PM   #30
Syb
Veteran Member
Syb's Avatar

Join Date: Aug 2007
Location: Near Utrecht, Netherlands
Photos: Gallery
Posts: 1,224
QuoteOriginally posted by Canada_Rockies Quote
I first tested this when I got my SF-1 by setting it up at a hummingbird feeder. It took three in focus shots of the local fast movers while I ate supper, using a locked down release cord.
you mean... your SF-1 Supper?


Syb
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!
auto, beep, camera, dslr, focus, focus beep, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K7: Even with Manual Focus it gives off the AF beep? Daemos Pentax DSLR Discussion 12 10-14-2010 11:47 PM
Focus Confirmation bensonga Pentax Medium Format 1 03-25-2010 09:10 AM
Focus Confirmation?? slinco Troubleshooting and Beginner Help 14 01-15-2010 04:53 PM
Can Auto Focus be set to BEEP voicelit Pentax DSLR Discussion 9 10-08-2008 11:06 AM
Question on Ist-D focus confirmation on 3rd party manual K lens brainanta Pentax DSLR Discussion 13 03-21-2007 09:22 PM



All times are GMT -7. The time now is 08:04 AM. | See also: NikonForums.com, CanonForums.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