Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
06-11-2016, 04:20 AM - 1 Like   #1
New Member
michealm's Avatar

Join Date: May 2009
Location: Carlingford, NB
Photos: Gallery
Posts: 11
Formula one Montreal - K-1 vs K-3

So I took both cameras (and my wife) and wanted to see how much better the K-1 was at high speed focusing. I also spotted someone there with a K-50 with a 50-200. There was not a lot of difference between the cameras, except that the K-1 was able to focus faster while panning while the K-3 just seemed to give up. I was using a Tamron 70-300 on the K-1 and the kit lens (18-135) on the K-3. Here are two photos a few laps (and a pit stop) apart, in the photo with the K-1 the car is going much faster. Personally i like the one from the K-3 better, but from the 1700 or so images this is the exception, not the rule. Neither image has been edited in any way - these are in camera jpgs.

Attached Images
View Picture EXIF
PENTAX K-3  Photo 
View Picture EXIF
PENTAX K-1  Photo 
06-11-2016, 05:56 AM   #2

Join Date: Feb 2015
Photos: Albums
Posts: 3,676
Not surprising , the K1 AF seems to be a modified version of the K3's AF , plus some cosmetics such as red frame blinking when in focus similar to what's implemented in the D750 or Canon 7DII. Red frame flash in the viewfinder is pure cosmetic because it does not improves AF performance in any way, although it gives the users (and the reviewers) the impression the K1 AF has improved. Too me, the K3 AF is still more responsive compared to the K1 which seems to have a bit of added lag to lock AF.

However, you used lenses (Tamron 70-300 and 18-135) with which both K3 and K1 AF are slower than with new DFA lenses which seems to have motorization to take the camera AF to another level of AF performance effective with both K3 and K1.

Last edited by biz-engineer; 06-11-2016 at 06:03 AM.
06-11-2016, 10:47 AM   #3
Site Supporter
Site Supporter
a5m's Avatar

Join Date: Oct 2015
Photos: Albums
Posts: 563
Nice shots! I love Formula 1 . And you photographed the driver I like better from the Mercedes duo .

Were you using a tripod or are these handheld? Definitely the first pic from the K-3 looks better. But the car wasn't going the same speed so not the most fair evaluation. But it's nice to see the K-3 isn't too far behind the K-1. I just picked up a used K-3 so I'm looking forward to see how it compares to the K-S2.
06-11-2016, 12:38 PM   #4
Site Supporter
Site Supporter
jpzk's Avatar

Join Date: Jan 2009
Location: Québec
Photos: Gallery | Albums
Posts: 7,291
Great images.
I was just watching (on TV) Hamilton pulling a great time at the Montreal track this afternoon!
It was just around 1:12:xxx "something" ... looks promising for tomorrow and hopefully the weather will cooperate for you!

06-11-2016, 01:01 PM   #5
New Member
michealm's Avatar

Join Date: May 2009
Location: Carlingford, NB
Photos: Gallery
Posts: 11
Original Poster
All the shots are handheld, unless you have a media pass the rules say no entry with tripods or mono-pods - so I left mine 600km away only to see dozens of tripods. The k-3 performs well, the K-1 just outperforms it in every way. It was fun watching all the Nikon and Canon users panic when the rain started, although today's showers were enough for me. the K-50 I saw was actually a K-30, he ended up sitting near us in qualifying. I know I have one good shot from this afternoons qualifying session - at the end so I thought I would share it. This is directly from the camera.
Attached Images
View Picture EXIF
PENTAX K-1  Photo 

Last edited by michealm; 06-13-2016 at 03:31 AM.

  • 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!
cameras, dslr, formula one montreal, full frame, full-frame, k-1, k-3, k1, montreal k-1 vs, pentax k-1
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
K-1 vs K-3 wtlwdwgn Pentax DSLR Discussion 19 05-15-2016 09:30 AM
Wanted - Acquired: KatzEye Focus Screen for K-3 (K-3, K-5, K-5II, K-7, K-30, K-50, K-500), New or LN fwcetus Sold Items 15 05-07-2016 08:01 PM
K-1 vs K-3 autofocus system - some hardware and other differences rawr Pentax K-1 7 02-20-2016 09:42 PM
Pentax K-1 vs K-3 II Side-by-Side Photo Adam Pentax K-1 11 02-17-2016 06:41 PM
Machinery Formula one Grand Prix of Montreal and of course nice girls.... suzuki-j Post Your Photos! 7 06-13-2010 10:24 PM

All times are GMT -7. The time now is 01:32 AM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]