Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-27-2008, 09:02 AM   #1
Veteran Member




Join Date: Nov 2006
Location: Hong Kong
Posts: 1,934
K-m / K2000 AF very Faasst!

Here is a live show report in Traditional Chinese:

DCFever.com - 08 Photokina ?????????

They tried the K-m with the kit lens, they said the AF is very fast, much faster than all other brands' entry level DSLRs with kit lens, even they are ultrasonic! However, they also writes that the K-m generated very large noise for the (fast) AF.

So, Pentax's claim for the AF improvement is verified by 3rd party. What's left is if this new AF system is accurate and now that the K20D and K200D's AF system is now outdated (but replacement models are said to be come by next Summer).

09-27-2008, 09:28 AM   #2
Senior Member




Join Date: Jun 2008
Location: Grimsby UK
Photos: Gallery
Posts: 224
This part of the interview interested me:

Although basically the AF sensing hardware used in the K-m is the same as that used in the K20D and K200D, newly improved software and calculation algorithms will make it different, in various ways.


So does that mean a firmware update can speed up the AF or am I just being majorly hopeful????
09-27-2008, 10:12 AM   #3
Veteran Member
Buschmaster's Avatar

Join Date: Dec 2006
Location: Minnesota
Posts: 806
QuoteOriginally posted by cabstar Quote
This part of the interview interested me:

Although basically the AF sensing hardware used in the K-m is the same as that used in the K20D and K200D, newly improved software and calculation algorithms will make it different, in various ways.


So does that mean a firmware update can speed up the AF or am I just being majorly hopeful????
We are all hoping "YES" and this would be fantastic, but I have to wonder if it has a stronger motor, too.
09-27-2008, 10:18 AM   #4
RaduA
Guest




QuoteOriginally posted by cabstar Quote
This part of the interview interested me:

Although basically the AF sensing hardware used in the K-m is the same as that used in the K20D and K200D, newly improved software and calculation algorithms will make it different, in various ways.


So does that mean a firmware update can speed up the AF or am I just being majorly hopeful????
In theory even faster on a K20D because of the bigger torque of the motor inside.

Radu

P.S. I haven't drink anything in a long time but is it me or RH posted a POSITIVE news about Pentax?? Or the noise thing counters the AF speed, I wonder?

09-27-2008, 10:46 AM   #5
Veteran Member
deejjjaaaa's Avatar

Join Date: May 2007
Location: steel city / rust belt
Posts: 2,043
QuoteOriginally posted by cabstar Quote
So does that mean a firmware update can speed up the AF or am I just being majorly hopeful????
being... no more firmware updates for K10D, so you can count that K20D/K200D will be in the same basket once K30D/K300D hit the stores.
09-27-2008, 10:59 AM   #6
Veteran Member




Join Date: Aug 2008
Location: London
Photos: Gallery
Posts: 417
Ooh, thanks for that one. Nice to hear you having a possible change of heart about pentax (even if your blog is as hilarious as ever)...
09-27-2008, 11:30 AM   #7
Veteran Member
wlachan's Avatar

Join Date: Sep 2006
Location: Canada
Photos: Albums
Posts: 2,625
QuoteOriginally posted by RaduA Quote
In theory even faster on a K20D because of the bigger torque of the motor inside.
Sounds like what they did to the Z-1p. Fast with good torque but noisy. Not a complaint btw.

09-27-2008, 12:10 PM   #8
Veteran Member
deejjjaaaa's Avatar

Join Date: May 2007
Location: steel city / rust belt
Posts: 2,043
QuoteOriginally posted by wlachan Quote
Sounds like what they did to the Z-1p. Fast with good torque but noisy. Not a complaint btw.
Z-1p did not have cross AF sensors - just linear and apparently that linear one was bigger (or getting more light) than horizontal or vertical parts in current cross sensor... my guess... didn't it (Z-1p) focus faster and more reliable than current digital bodies ?
09-27-2008, 12:51 PM   #9
Veteran Member
wlachan's Avatar

Join Date: Sep 2006
Location: Canada
Photos: Albums
Posts: 2,625
QuoteOriginally posted by deejjjaaaa Quote
Z-1p did not have cross AF sensors - just linear and apparently that linear one was bigger (or getting more light) than horizontal or vertical parts in current cross sensor... my guess... didn't it (Z-1p) focus faster and more reliable than current digital bodies ?
Faster but no more reliable. The issue with the current Pentax AF is that they all have wide area sensors which can be easily distracted by anything being covered by the chosen sensor. Z-1p has narrow AF sensor so you can pinpoint the focus, something is no always possible with Pentax DSLRs.
09-27-2008, 01:31 PM   #10
Veteran Member
deejjjaaaa's Avatar

Join Date: May 2007
Location: steel city / rust belt
Posts: 2,043
QuoteOriginally posted by wlachan Quote
Faster but no more reliable. The issue with the current Pentax AF is that they all have wide area sensors which can be easily distracted by anything being covered by the chosen sensor. Z-1p has narrow AF sensor so you can pinpoint the focus, something is no always possible with Pentax DSLRs.
wider because of being cross type sensor (2 dimension) or wider because in each direction new sensor is longer ? and the issues are 1) low light performance 2) tungsten light vs daylight ... if there is another object covered by the sensor that forces AF to focus on it instead of the intended target - how does it affect the speed (we are talking about AF.S here)... AF just selects the one which will be in focus first.

PS: Z-1p has IR cut filter in AF module - does current SAFOX still have IR cut filters ?
09-27-2008, 09:49 PM   #11
Veteran Member
code4code5's Avatar

Join Date: Oct 2007
Location: Denver, CO
Photos: Gallery
Posts: 438
Thank you, RH. I think we can all count that as very good news for the Pentax camp.
09-27-2008, 10:17 PM   #12
Damn Brit
Guest




Thank you RH, good news for a change.
09-27-2008, 11:47 PM   #13
Veteran Member




Join Date: Sep 2008
Location: Portland, OR, USA
Photos: Gallery | Albums
Posts: 430
Just a quick observation about the review; this is slightly off-topic. Okay, completely off-topic. Leica shows off its products with a rich-hipster type in a Burberry tie. Sigma struts its amazingly big glass. Panasonic shows off a red-bodied camera and a glass-encased rock garden. Pentax? Well. Pentax has its entry-level camera on a plastic pedestal. (Oh, and its new lenses.) Showing off its product for whatever that's worth. I admire Pentax for that.









Faster AF is welcome, too. :-)
09-28-2008, 01:00 AM   #14
Veteran Member
roentarre's Avatar

Join Date: Oct 2006
Location: Melbourne, Australia
Posts: 11,783
From the site, there is an interesting phrase

"New kit lens on KM body is surprisingly faster than the aufocus capability of the kit lens on canon and nikon latest cameras".

We all know the kit lenses on canikon are simply trash.

But the autofucs speed seems to be the main stressor point in that article.
09-28-2008, 02:44 AM   #15
Senior Member




Join Date: Nov 2006
Posts: 126
QuoteOriginally posted by IsaacEastgate Quote
Ooh, thanks for that one. Nice to hear you having a possible change of heart about pentax (even if your blog is as hilarious as ever)...
Funny thing is that when he has something good to say about Pentax, like here, he doesn't put it on his blog...
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!
af, camera, dslr, k-m, k2000 af, kit, lens, photography, system

Similar Threads
Thread Thread Starter Forum Replies Last Post
K2000 NR WillCarney Pentax DSLR Discussion 1 01-26-2010 02:53 AM
K2000 Duane Pentax DSLR Discussion 6 12-20-2009 05:28 PM
best batteries for k2000? gemini Pentax DSLR Discussion 11 09-28-2009 10:15 AM
K2000 vs. K200D tcerveny Pentax DSLR Discussion 2 09-27-2009 12:07 PM
New K2000 sherib Troubleshooting and Beginner Help 13 06-08-2009 08:34 AM



All times are GMT -7. The time now is 03:37 AM. | 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