Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-30-2009, 10:33 AM   #1
New Member




Join Date: Jul 2009
Location: Chicago
Posts: 1
Time-lapse with K100D and old lenses

I have read lots of good posts here about using old (mine are K-mount) lenses with this camera (which is on its way today). I understand using the AE-L button to stop down the lens so that the camera can find the correct shutter speed for a proper exposure.

So here is my question: is there any way to set the camera up so that it sets the exposure automatically without the use of the AE-L button? I want to take time-lapse photos using an intervalometer and won't be there to push a button for every frame.

If no easy way to do this, any difficult ones?! I guess I could just pick an exposure once and then edit the photos after they are recorded but I would prefer not to. Also, if I wanted to take a series of pix with significantly different lighting (e.g. dusk to night sky) then I don't know if I could even find a "compromise" exposure that would work at both ends of the lighting.

Thanks for any ideas. I am dying to use this camera with my old (but great) lenses!

07-30-2009, 10:40 AM   #2
Veteran Member




Join Date: Jul 2008
Location: Var, South of France
Photos: Albums
Posts: 1,071
Well, there is a mean to use your P-K lenses as stop-down lenses (like the m42), where the aperture is free to move : simply mount them partway so the aperture actuator doen't touch the lens' aperture lever. this way, if you set f/4, the aperture blades will immediately change.

In this mode, the camera will meter what it sees in real-time (no need to stop-down!), so the metering will be accurate, whatever lighting condition arise.

I've made this change in a permanent way on one of my PK lenses by drilling a second locking hole in the lens.
On my K20, I lock the lens using this new hole, and it works just like an old m42.
On my film camera, I use the original locking hole, so I can still focus wide open.
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-l, button, camera, dslr, exposure, lenses, photography, photos, time-lapse
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
TIME LAPSE on K7 leadguitarest Video and Pentax HDSLRs 29 06-01-2011 09:40 AM
K-5 Time lapse bergwerk Video and Pentax HDSLRs 4 11-17-2010 06:25 AM
Machinery Time-lapse project done with a K100d alexeyga Post Your Photos! 1 05-31-2010 01:01 PM
K100D time lapse video - Men At Work sfdealer Video and Pentax HDSLRs 6 10-25-2009 07:04 AM
Time Lapse with the K100d yosef Pentax DSLR Discussion 3 05-29-2008 05:17 PM



All times are GMT -7. The time now is 11:07 PM. | 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