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03-21-2010, 03:10 PM   #1
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K7 AF speed

I may be coming back to Pentax. I was taking pics of my little girl playing in the snow a few weeks ago with my Canon 30d when it started to lightly rain. I ran in the house before the camera got overly wet. I don't want this to happen again. I'm stuck between shelling out $$$ on a 7d or getting a k-7 for $600 less that also comes with the two WR kit lenses. My question is, is the K-7's AF as fast as the 30d's? If so, I'll be ordering tonight. Thanks............

03-21-2010, 03:45 PM   #2
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The K-7's AF has improved over previous Pentax DSLR's and having a really good AF.S and even in low-light equivilant to that of the D300s, however the AF.C is still lacking behind the competition. You may also want to read this article about the Pentax K-7's AF.

Alunfoto: A practical look at K-7 autofocus

It has a good amount of information and a lot of testing, will definitely answer your question.
03-21-2010, 03:46 PM   #3
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I cannot comment on the CanonAF, but there habe been some interesting discussion on the K-7 AF. For example, a review bya Leica user:
The Pentax K7 Review | STEVE HUFF PHOTOS
This professional photographer is unlikely to be biased and his experience is worthwhile.

Overall the K-7 AF is pretty good to excellent.

Hope that the comment will help...
03-21-2010, 03:54 PM   #4
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Something wrong with Manual Focus?

In conditions like this, why would you get upset with AF?

03-21-2010, 05:53 PM   #5
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One last question, does anyone have an issue with the mode dial lock?
03-21-2010, 05:55 PM   #6
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None - I find it very intuitive somehow..
03-21-2010, 06:08 PM   #7
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None - I find it very intuitive somehow..

EDIT: Though I would prefer to metering selector lever to be easier to grab.
03-21-2010, 06:10 PM   #8
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None - I find it very intuitive somehow..

EDIT: Though I would prefer to metering selector lever to be easier to grab.

(Hmm - dunno why 'edit' creates a new post?)

03-21-2010, 06:40 PM   #9
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Having shot a whole bunch of white birds in bright light using ISO 1600 because I accidentally switched a K10 to Sv from P when I pulled it out of the camera bag, I'm very much in favor of the lock. While it took a bit to get used to it at first, I don't even think about it any more.
03-21-2010, 09:28 PM   #10
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QuoteOriginally posted by mtngal Quote
Having shot a whole bunch of white birds in bright light using ISO 1600 because I accidentally switched a K10 to Sv from P when I pulled it out of the camera bag, I'm very much in favor of the lock. While it took a bit to get used to it at first, I don't even think about it any more.
I'll second this. I shoot Av priority most of the time, and it's funny how confusing it is to see the aperture change in the opposite direction when I turn the rear e-dial because the camera was unexpectedly in Tv due to an accidental change of the mode dial. This used to happen quite frequently with both the K10 and K20. With the K-7 it's not a problem.

Scott
03-22-2010, 06:47 PM   #11
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Thanks for all the replies. I went ahead and ordered the K-7 this evening.
03-22-2010, 07:51 PM   #12
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If you're worried about problems caused by the rain, then I hope that you ordered the WR kit lens or one of the other weather sealed lenses too. A weathersealed body isn't fully weathersealed unless there's a matching weathersealed lens on it.
03-22-2010, 08:07 PM   #13
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K7

Good choice in ordering the K7 it's an outstanding camera and it's focus is fast enough for me and I shoot weddings with it.
04-07-2010, 10:34 PM   #14
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much better than old pentax camera, but it still not as good as canon and nikon
04-08-2010, 04:42 AM   #15
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Is the K-7 AF as fast as the 30D AF??

This is a simple question, but it has a somewhat complicated answer.
I'd say, it depends...

Last september we have been travelling through Zambia.
Half the time we were having a German couple as company and they were shooting with a 40D and a 450D.
One with the Canon 28-300mm zoom lens (an expensive thing!) and a Tamron 18-270mm zoom.
I've been using the DA* 60-250mm with on/off a Kenko 1.5 TC.
We were all shooting single autofocus (needed to preserve battery charge!)

To my surprise, and in contradiction to all on-line camera tests, my K-7 was faster (!) in night safari trips than their Canon camera's.
During daytime we were on par.

Also, I think I can say that I had more keepers, the Canon's AF systems were more "wrong" than my Pentax.
I did fine tune my AF with my lenses before the trip, I have no idea if you can do that with Canon camera's.

On the other hand, I'm not impressed at all with contineous AF.
If you are a sports photographer, the K-7 is not fit for fast action that moves to/from you.

Nevertheless, 3 weeks safari, camera and lenses in an open bag, dusty environment, no dust on the sensor.
The environmental sealing and dust reduction system work really well.

Hope this helps....

- Bert
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