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altrace · 03-27-2013, 09:23 PM

I bought the K-01 with the 18-135 WR lens and I'm finding it slower to focus than the 18-55. Is this my imagination or did I get the wrong lens. I'm considering returning it and getting the 18-55WR as I also have the 50-200. Any thoughts? Is this a lens problem or is it in the camera?

Plainfaced · 03-27-2013, 09:27 PM

Make sure youre on the latest Firmware..

It only really struggles for me in low light.

Adam · 03-27-2013, 09:32 PM

Originally posted by altrace

I bought the K-01 with the 18-135 WR lens and I'm finding it slower to focus than the 18-55. Is this my imagination or did I get the wrong lens. I'm considering returning it and getting the 18-55WR as I also have the 50-200. Any thoughts? Is this a lens problem or is it in the camera?

It's probably just an illusion, since the 18-135mm makes no noise. The K-01's AF is pretty slow overall, though...

kenafein · 03-27-2013, 09:36 PM

As I recall the 18-135 focuses really fast on a K-5. My friend's K-01 focuses fast enough with my DA55-300. Maybe the motor doesn't play nice with the 18-135, but the firmware will probably take care of it.

altrace · 03-28-2013, 06:11 AM

Wondering what version of firmware I should be looking for?

Rob22315 · 03-28-2013, 06:57 AM

1.03 is the latest

jon404 · 03-28-2013, 09:09 PM

AF -- when it works, which is very much most of the time, it's fantastic. And sometimes it works when it really shouldn't. Like today, a quick snapshot of a helicopter, way too far away, going in and out of the fog. Now, the picture's no good, but that's not the point. Look how small the aircraft is, against the white mist. With the K-01 on spot focus, I was able to get a focus lock before it went back into the clouds. Way to go, Pentax! And, as for me, I'll get an exposure lock on something different than green grass, the next time.

Attached Images

03-27-2013, 09:23 PM	#1
altrace New Member Join Date: Jun 2009 Location: Chattanooga, TN Photos: Gallery Posts: 7	K-01 slow auto focus? I bought the K-01 with the 18-135 WR lens and I'm finding it slower to focus than the 18-55. Is this my imagination or did I get the wrong lens. I'm considering returning it and getting the 18-55WR as I also have the 50-200. Any thoughts? Is this a lens problem or is it in the camera?

03-27-2013, 09:32 PM	#3
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Originally posted by altrace I bought the K-01 with the 18-135 WR lens and I'm finding it slower to focus than the 18-55. Is this my imagination or did I get the wrong lens. I'm considering returning it and getting the 18-55WR as I also have the 50-200. Any thoughts? Is this a lens problem or is it in the camera? It's probably just an illusion, since the 18-135mm makes no noise. The K-01's AF is pretty slow overall, though... 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:

03-28-2013, 06:11 AM	#5
altrace New Member Join Date: Jun 2009 Location: Chattanooga, TN Photos: Gallery Posts: 7 Original Poster	What's latest version of K-01 firmware? Wondering what version of firmware I should be looking for?

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03-27-2013, 09:27 PM	#2
Plainfaced Forum Member Join Date: Dec 2012 Posts: 78	Make sure youre on the latest Firmware.. It only really struggles for me in low light.

03-27-2013, 09:36 PM	#4
kenafein Veteran Member Join Date: May 2011 Location: Southern California Photos: Albums Posts: 4,082	As I recall the 18-135 focuses really fast on a K-5. My friend's K-01 focuses fast enough with my DA55-300. Maybe the motor doesn't play nice with the 18-135, but the firmware will probably take care of it.

03-28-2013, 06:57 AM	#6
Rob22315 Inactive Account Join Date: Mar 2007 Location: Alexandria VA USA Posts: 315	1.03 is the latest

03-28-2013, 09:09 PM	#7
jon404 Veteran Member Join Date: Dec 2012 Photos: Gallery Posts: 696	AF -- when it works, which is very much most of the time, it's fantastic. And sometimes it works when it really shouldn't. Like today, a quick snapshot of a helicopter, way too far away, going in and out of the fog. Now, the picture's no good, but that's not the point. Look how small the aircraft is, against the white mist. With the K-01 on spot focus, I was able to get a focus lock before it went back into the clouds. Way to go, Pentax! And, as for me, I'll get an exposure lock on something different than green grass, the next time. Attached Images

K-01 slow auto focus?

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