Web Analytics RiceHigh's Pentax Blog: K-r's AF Accuracy Affected Much by Colour Temparture (of the Light Source)

Saturday, November 20, 2010

K-r's AF Accuracy Affected Much by Colour Temparture (of the Light Source)

See the pictures in this experiment, the pictures speak themselves!

http://www.pentaxforums.com/forums/pentax-k-r-forum/123165-my-k-r-auto-focus-test.html

But the software guess works of using the WB setting to make some "corrections" seem just doesn't work out at all, which can be verified in the above. It only creates more chaos, like this new K-r reported and complained about.
Time (UTC +0800):

Comments (4)

Loading... Logging you in...
Dashboard | Edit profile | Logout
  • Logged in as
+1 Vote up Vote down
OGL's avatar

OGL · 750 weeks ago

Any DSLR with simple AF and exposure system has the same affect
+1 Vote up Vote down
illdefined's avatar

illdefined · 750 weeks ago

congratulations Rice. you've just discovered the "+" in "SAFOX +". of course instead of posting about K-5's color temperature AF sensor, post about the ENTRY level model without it...
0 Vote up Vote down
Toomas Kadarpik's avatar

Toomas Kadarpik · 750 weeks ago

Yes K-r is without color sensor. Light bending when moving between different densities really depends on wavelength. K-r and K-x,K-200,K20 all should perform the same way from this point of view.
0 Vote up Vote down
Erika's avatar

Erika · 750 weeks ago

I keep asking this everywhere: Did anybody try attaching color correction filter (tungsten to daylight) and then see how AF works under tungsten? WB is a different thing, as, I presume, AF sensors are not directly affected by WB setting.

Post a new comment

Comments by