Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-21-2015, 05:45 PM   #1
New Member




Join Date: Jun 2015
Posts: 2
Lens causes mirror to go up in movie mode

Hello Everyone,

I have been using a second-hand Pentax DA* 16-50mm f2.8 lens and it has been acting up. First of all, when the lens is mounted and the camera is in movie mode, the mirror of the camera keeps going up then back down, causing the live view on the LCD to turn on and off. When I put the camera in any other mode, the AF.S/AF.C/M indicator constantly changes back and forth from the AF mode I have selected to M. Secondly, the aperture value keeps changing from a -- reading to whatever value I select. I can also not access the menus with the lens mounted as it keeps pulling me back to the main screen as if I half pressed and released the shutter button, however it does not turn off the rear LCD as if I actually half pressed the shutter button for a photo.

The auto focus works, albeit in a very poor fashion, often requiring many attempts to even get close to a good focus. The aperture selected will be correct when the picture is taken for the most part, however there are times when the aperture is not functioning and f22 will be used, even though a larger aperture is selected.

I have tried cleaning the contacts on the lens and the camera, as well as putting the lens and camera in manual focus mode. Neither of these solutions made a difference. I also put on a different lens to see if it was a problem with the camera itself, and the camera and lens operates fine. Side note, the camera is the K30.

I am at my wits end with this lens as it is one of the more expensive lenses in my collection and would love for it to just work again. If anyone has any idea(s) of what to do or even understands my problem, it is greatly appreciated.

Thanks!

07-22-2015, 09:42 AM   #2
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,948
It's definitely not a problem with the camera since when it loses its connection to the lens, it's designed to exit out of live view. Could be a problem with the electronics in the lens. If the mount doesn't feel loose I would send it in for service.

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

07-22-2015, 06:24 PM   #3
New Member




Join Date: Jun 2015
Posts: 2
Original Poster
Thanks Adam! Would Pentax do these repairs or would I have to have it sent to a local shop, of which I have none in my city.
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!
aperture, button, camera, focus, glitch, half, jumping values, lcd, lens, lens causes mirror, mode, pentax help, photography, shutter, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to stop Interval Movie Mode? maxxxx Pentax K-30 & K-50 5 03-14-2015 07:50 AM
Changing settings in movie mode (k-x) RealPotato Troubleshooting and Beginner Help 3 01-16-2015 06:51 PM
Remote Control WP in Movie mode problem pero Pentax Q 3 12-04-2014 07:58 PM
Movie mode shutter/mirror Steve.Ledger Pentax K-30 & K-50 25 05-21-2014 01:05 AM
setting 6400 - 12500 in movie mode ??? pass Pentax K-01 3 10-03-2013 12:24 PM



All times are GMT -7. The time now is 07:21 PM. | 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