Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-24-2015, 10:38 AM   #1
New Member




Join Date: Apr 2015
Posts: 14
K-3 Self-timer vs Mirror-lockup

Hello,

I am a new to photography and just myself a tripod. I am trying to get sharp images and as I understand the mirror is raised in both modes when I first press the shutter button but in self-timer and remote the exposure is not locked and can change when the shutter releases and for that I need to cover the viewfinder or use the AE lock function, my question is which mode will yield the best results, I like self-timer but I don't like locking the exposure each time I take a photo.

Thank you for your help!

04-24-2015, 11:04 AM   #2
Pentaxian




Join Date: Sep 2011
Location: Nelson B.C.
Posts: 3,246
QuoteOriginally posted by Markx Quote
Hello,

I am a new to photography and just myself a tripod. I am trying to get sharp images and as I understand the mirror is raised in both modes when I first press the shutter button but in self-timer and remote the exposure is not locked and can change when the shutter releases and for that I need to cover the viewfinder or use the AE lock function, my question is which mode will yield the best results, I like self-timer but I don't like locking the exposure each time I take a photo.

Thank you for your help!
If I understand correctly the exposure changes from when you have your eye on the viewfinder and when you step back to take the shot. Is that what you mean? Depending on what you are shooting, you could set up the shot, switch into live view to check your exposure, then use either self timer or remote.

There are two sources of vibration. One is you, when you let go of the body it takes a bit of time to settle down. A remote or self timer works in that case.

The second source is the mirror opening and the shutter action. There is an audible clunk as it swings out of the way, creating some vibration. Mirror up mode or live view mode removes that source.

Much depends on what you shoot. If you need to capture a scene that is changing, delays cause a problem. If the scene is static, then mirror up with a delay gets rid of almost all vibration sources and is the best option.

I shoot moving scenes, and if I am looking to capture something far away with a long lens I use live view. The action on triggering the shutter is to close the shutter then open it again for the exposure. And I can trigger it to capture the scene when I want to.
04-24-2015, 02:35 PM - 1 Like   #3
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,103
QuoteOriginally posted by Markx Quote
Hello,

I am a new to photography and just myself a tripod. I am trying to get sharp images and as I understand the mirror is raised in both modes when I first press the shutter button but in self-timer and remote the exposure is not locked and can change when the shutter releases and for that I need to cover the viewfinder or use the AE lock function, my question is which mode will yield the best results, I like self-timer but I don't like locking the exposure each time I take a photo.

Thank you for your help!
Place your thumb over the viewfinder opening as you step away from the camera. You don't have to touch the camera. That will prevent stray light from entering the viewfinder and biasing the exposure.


Steve
04-24-2015, 07:24 PM - 1 Like   #4
Loyal Site Supporter
monochrome's Avatar

Join Date: Mar 2008
Location: Kirkwood (St. Louis) MO
Photos: Gallery | Albums
Posts: 20,193
QuoteOriginally posted by stevebrot Quote
Place your thumb over the viewfinder opening as you step away from the camera. You don't have to touch the camera. That will prevent stray light from entering the viewfinder and biasing the exposure.


Steve
Best idea I've read in a long time

04-24-2015, 10:56 PM   #5
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,534
To my knowledge, the self-timer raises the mirror when the photo is taken, not x seconds before it.
04-25-2015, 03:10 PM   #6
Pentaxian




Join Date: Mar 2010
Location: Frankfurt am Main
Posts: 1,080
QuoteOriginally posted by sterretje Quote
To my knowledge, the self-timer raises the mirror when the photo is taken, not x seconds before it.
Not with my K200D and *istDS in 2s delay mode. To make sure, I just tried.
04-25-2015, 03:22 PM   #7
Site Supporter




Join Date: Jun 2009
Location: Melbourne Australia
Posts: 280
QuoteOriginally posted by sterretje Quote
To my knowledge, the self-timer raises the mirror when the photo is taken, not x seconds before it.
The 2 second timer raises the mirror, waits 2 seconds then takes the shot.

The 12 second timer waits 12 seconds then raises the mirror and takes the shot.

I assume the exposure is determined just before raising the mirror in both cases but wouldn't be surprised if I am wrong.


So, as I eventually learned, if you want to reduce camera shake, use the 2 sec timer not the 12.
04-25-2015, 05:54 PM   #8
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,103
QuoteOriginally posted by alfa75ts Quote
I assume the exposure is determined just before raising the mirror in both cases but wouldn't be surprised if I am wrong.
Yes, the meter cells read off the image on the focus screen and the exposure is determined just prior to the mirror lifting. When the mirror is up, the meter is blind.


Steve

04-25-2015, 07:01 PM   #9
Pentaxian
Arjay Bee's Avatar

Join Date: Sep 2006
Location: Bamaga, QLD
Photos: Gallery | Albums
Posts: 3,016
QuoteOriginally posted by sterretje Quote
To my knowledge, the self-timer raises the mirror when the photo is taken, not x seconds before it.
That seems logical enough. Imagine you want to get yourself in the pic and happen to be wearing a white shirt while everyone else still has their dark jacket on. This will upset the exposure if it were done at the first press but would be safe enough towards the end of the 12s once you've put yourself in the frame.
04-25-2015, 08:29 PM   #10
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,534
QuoteOriginally posted by RKKS08 Quote
Not with my K200D and *istDS in 2s delay mode. To make sure, I just tried.
That is the mirror-up function, not the (10 second) self-timer. My vocabulary is maybe slightly different from yours and I should probably be a little clearer.
12-18-2015, 03:44 AM   #11
Site Supporter




Join Date: May 2010
Location: Catalao GO Brasil
Photos: Gallery
Posts: 149
QuoteOriginally posted by stevebrot Quote
Place your thumb over the viewfinder opening as you step away from the camera. You don't have to touch the camera. That will prevent stray light from entering the viewfinder and biasing the exposure.


Steve
My K-5 II came with a viewfinder cover piece. The K-3s probably come with the same piece in the box.
12-18-2015, 03:58 PM   #12
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,103
QuoteOriginally posted by amrocha Quote
The K-3s probably come with the same piece in the box.
Indeed it does

...although almost everyone loses theirs pretty quickly. It is also a pain to use in actual practice and is impractical except for use during long exposures where the intent is to minimize potential light leak onto the sensor during the actual exposure. The thumb method is useful to avoid biasing the meter prior to mirror-up.


Steve

* The mirror generally does an adequate job of blocking light from the viewfinder during exposure, but long exposures present a challenge.
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, exposure, k-3, k-3 self-timer vs, mirror-lockup, pentax help, photography, self-timer, shutter, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K3 Crazy Mirror Sickness (Mirror Flapping Lockup) - Report Yours Here! DRabbit Pentax K-3 928 01-17-2017 04:44 PM
645z: live view vs mirror lockup the_ether Pentax Medium Format 11 04-06-2015 06:04 AM
Mirror lockup holds me back from purchasing a K-3 nicolaidenmark Pentax K-3 54 10-09-2014 06:29 PM
self timer vs wireless remote? loco Troubleshooting and Beginner Help 8 04-06-2011 05:43 PM
K-x AF after self-timer for Self-portrait sir.b Pentax DSLR Discussion 7 12-30-2009 07:53 PM



All times are GMT -7. The time now is 10:08 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