RiceHigh's Pentax Blog: K-5 Vs K-7 AF-C Speed / Frame Rate Head-to-Head Comparison

Monday, September 20, 2010

K-5 Vs K-7 AF-C Speed / Frame Rate Head-to-Head Comparison

Hoya claims that the K-5 has an improved-speed AF system (together with a higher continuous shooting rate on specs as well). Let's see how the new K-5 is compared to the old K-7 below!

(URL: http://www.youtube.com/watch?v=d4nv2QGktbw)

The same lens is used, but unfortunately it's a Sigma. The cameras were put into AF-C mode (with automatic 11 points) with Continuous Frame Shooting mode at Hi speed. The *effective* frame rate are summarised at the end of the video clip, which I re-type here:-

K-7	K-5 (frame rate priority)	K-5 (focus priority)
1.9 fps	3.9 fps	3.4 fps

However, the tester didn't count and hasn't shown us the successful rate of images that are being in-focus against the failure rate of being out, which I think is just also very important. Btw, we can wildly assume that the results of the two cameras are equal, first.

Previous Related:-

Measurebated: K-7 is NOT a Machine Gun! :-(

Comments (12)

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ArcticExposure 45p · 755 weeks ago

K-5 firmware: 0.1. The test is pointless.

I'll wait for my own copy of K-5 to see how it works compared to the K-x, which is all that matter to me.

2 replies · active 755 weeks ago

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RiceHigh 110p · 755 weeks ago

So, FW 0.1 of the K-5 is already more than enough to K.O. FW 1.1 of the K-7! So? :-D

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ArcticExposure 45p · 755 weeks ago

Yeah, hopefully the proper version is even better, but still, that's already very good =)

I'm waiting for an answer from a Norwegian reseller of Pentax about availability, hopefully it won't be too long!

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Ronny · 755 weeks ago

Frame rate priority doesn't do anything else than take the current hi/lo setting for repeated shooting and takes a photo in focus or not, so thats not y useful. Focus priority should only take the shot when the focus is established. But as you said there is no analysis of the results so ...

At least it seems to be faster but I'll wait till there is a better check before I'll start preordering my copy.

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drondrive 21p · 755 weeks ago

owners of the canikon cameras, can you compare this result with your 7d/d300s?

3 replies · active 755 weeks ago

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Daniel · 755 weeks ago

6/8 frames per second . ( in focus priority). I managed to get ~6 on my D300 with 80-200 AF-D (screwdrive, not SWM) ( ofc, tests may vary and depend on the light quality, lens and USER )

some test here which proves 8fps in focus: http://dslr-video.com/blogmag/?p=1408

D300s has even faster focus acquisition.

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drondrive 21p · 755 weeks ago

Thanks for the information :)

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darelo · 755 weeks ago

I agree with the "depend on the USER". what the helll is he catching up in focus a flying mosquito ??. Tell the guy on the video to go outside and take the shot like that marathon you took and then it might prove something... Coz your're to catch focus on something BUT NOT ACQUIRE NEW SUBJECT EACH IN EVERY SHOT. Its suppose to be a no-brainer testing... but (LOL) that kid on the video looks like dont have any idea what to do...... thanks for your unbiased thoughts in this..... darelo

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david · 755 weeks ago

Nice that you qualify this post Rice that we are not given how accurate the AF was on either camera, something you did not do when touting all those Pentax v. Canon AF videos a few months ago. So glad you adapted.

1 reply · active less than 1 minute ago

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