K50 rattle

**A H Thompson** · 06-04-2016, 06:17 PM

While using my K50 w a Rokinon 85mm 1.4 lense I heard a rattle that is easily heard on Live View and less noticeable when Live View is off. It is a fairly new camera, it has not been dropped. What might be happening? Buddy

Adam · 06-04-2016, 06:20 PM

Originally posted by A H Thompson

While using my K50 w a Rokinon 85mm 1.4 lense I heard a rattle that is easily heard on Live View and less noticeable when Live View is off. It is a fairly new camera, it has not been dropped. What might be happening? Buddy

That's normal. What you're hearing is the SR system in action.

You'll also hear a clunk sound when moving the camera around while it's off.

bertwert · 06-04-2016, 06:21 PM

Probably the sensor moving about.
This is normal.
The SR magnets are off when the camera is off leaving the sensor to freely float around.

**A H Thompson** · 06-04-2016, 07:41 PM - **1 Like**

I have read a number of posts to threads that note a rattle and I guess it is not only acceptable but in fact normal although none of them state the condition as I observed with my camera. That being stated any reassurance or explanation will be appreciated. I want to take the opportunity to express my gratitude to everyone who uses this forum and posts replies and comments for being there for novices like me. Buddy

twuynh · 06-04-2016, 07:50 PM

same thing happened to me. felt like the sensor got loose. K5iis is a lot more stable.

Adam · 06-04-2016, 10:42 PM

One thing to note is that the rattle gets louder with longer telephoto lenses. As long as the live view image is stable, there's nothing to worry about.

If something does break, the SR system can go haywire and shake the sensor erratically, but this would effectively prevent you from taking photos.

06-04-2016, 06:17 PM	#1
A H Thompson Loyal Site Supporter Join Date: Jan 2016 Location: Mississippi Posts: 38	K50 rattle While using my K50 w a Rokinon 85mm 1.4 lense I heard a rattle that is easily heard on Live View and less noticeable when Live View is off. It is a fairly new camera, it has not been dropped. What might be happening? Buddy

06-04-2016, 06:20 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	Originally posted by A H Thompson While using my K50 w a Rokinon 85mm 1.4 lense I heard a rattle that is easily heard on Live View and less noticeable when Live View is off. It is a fairly new camera, it has not been dropped. What might be happening? Buddy That's normal. What you're hearing is the SR system in action. You'll also hear a clunk sound when moving the camera around while it's off. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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06-04-2016, 06:21 PM	#3
bertwert Veteran Member Join Date: Jun 2015 Location: Golden, BC Posts: 15,173	Probably the sensor moving about. This is normal. The SR magnets are off when the camera is off leaving the sensor to freely float around.

06-04-2016, 07:41 PM - 1 Like	#4
A H Thompson Loyal Site Supporter Join Date: Jan 2016 Location: Mississippi Posts: 38 Original Poster	I have read a number of posts to threads that note a rattle and I guess it is not only acceptable but in fact normal although none of them state the condition as I observed with my camera. That being stated any reassurance or explanation will be appreciated. I want to take the opportunity to express my gratitude to everyone who uses this forum and posts replies and comments for being there for novices like me. Buddy

06-04-2016, 07:50 PM	#5
twuynh Forum Member Join Date: May 2015 Photos: Albums Posts: 59	same thing happened to me. felt like the sensor got loose. K5iis is a lot more stable.

06-04-2016, 10:42 PM	#6
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	One thing to note is that the rattle gets louder with longer telephoto lenses. As long as the live view image is stable, there's nothing to worry about. If something does break, the SR system can go haywire and shake the sensor erratically, but this would effectively prevent you from taking photos.