Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
10-09-2010, 08:22 PM   #1
Senior Member

Join Date: Mar 2008
Location: Québec
Posts: 119
Mirror flips for video

Hi, I just noticed something weird with my K-x video mode and I want to share it. When I use the DA limited, I click the shutter and the mirror flips down and back up. It bothered me but now I'm OK with it
Now, I dusted off my DA-L lenses (18-55 and 55-300), and with those, the mirror doesn't flips on the shutter click. This is great because the camera doesn't make a sound.
Now, I tried with my other lenses and the old Pentax-M the mirror moves, the Tamron 18-250 also. The only one that doesn't flips is a mirror lens. Also without any lens, but thats not useful

Now my question, why does it sometimes move ??????? What is wrong with the DAL that make it so great for video? They should make an FW update that fixes this for every lens, it's clear it works.

10-10-2010, 04:29 AM   #2
Veteran Member

Join Date: Jul 2008
Location: Var, South of France
Photos: Albums
Posts: 1,074
I'd say that your old lenses have a metal mount (but no data or A connection, obviously), whereas your mirror lens certainly have an insulated mount (and so mimics the bare mount behavior).
10-10-2010, 05:31 AM   #3
Senior Member

Join Date: Mar 2008
Location: Québec
Posts: 119
Original Poster
There is something I noticed later last night. With the 18-55mm DAL, the mirror always moves at 18mm but rarely does at 55mm. With the 55-300 it never does.
I still can't figure why.
I'll test today with longer than 55 with the tamron.
10-10-2010, 09:19 AM   #4

Join Date: Jan 2009
Photos: Gallery
Posts: 9,674
I think you should set in Menu LiveView the AF to contrast AF.

10-10-2010, 02:48 PM   #5
Senior Member

Join Date: Mar 2008
Location: Québec
Posts: 119
Original Poster
I'm in contrast detect. I'm even using manual focusing.
Does anyone else can start filming without the mirror flipping?
I'm not sure if something is wrong or if it's normal.

  • 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!
click, hdslr, lens, lenses, mirror, shutter, video
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
The K-7 Video Thread (Dare I say Video Club?) Urkeldaedalus Video and Pentax HDSLRs 33 01-05-2010 10:49 PM
Will using the video-out when in video mode help conserve battery? greenless Pentax DSLR Discussion 2 12-14-2009 02:49 PM
K-7 with 16-50, video from WhatDC, video from pentax Isaac314 Pentax News and Rumors 10 05-21-2009 11:11 AM
Mirror, Mirror in the Garden... JMR Post Your Photos! 11 02-20-2009 03:41 PM
car flips going 80 nathancombs Post Your Photos! 0 10-08-2007 01:38 PM

All times are GMT -7. The time now is 11:47 AM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]