RiceHigh's Pentax Blog: Pentax K-7 Vs Canon 7D AF Speed Test

Wednesday, June 02, 2010

Pentax K-7 Vs Canon 7D AF Speed Test

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

Well, I think the test video speaks clearly itself. As such, I have no more to say!

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DronDrive · 774 weeks ago

I saw this video one month ago, very sadly... though who tried to prove me that it is the wrong test) because we did not see a target and lenses not one category. It is obvious that with other lens the situation will not exchange ((

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Enche Tjin · 774 weeks ago

I've used 17-55, and 70-200mm f4 before with 40D, i can confirm that the focus speed is very fast. the 70-200mm f4 AF speed is almost instaneous in shooting sports, and accurate too.

1 reply · active less than 1 minute ago

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RiceHigh 110p · 774 weeks ago

Yes, me too, I can also confirm about it.

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David · 773 weeks ago

Really, this is suppose to be some 'gotcha' video? Let's see, the 7D is twice as much as the K7, and the lenses that are placed on the two cameras are not equal in any way. How about putting the Tamron 80-200mm 2.8 on each one and seeing how they measure up? Or each respective company's 50mm 1.4? Plus, there is no way of seeing how accurate the final focus was on either camera.

Putting this up shows how much you are in the bag for Canon, RiceHigh

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Dave · 773 weeks ago

Another thing to consider is that both Canon lenses seem to have a shorter focus throw. An ideal test would require to use the same lens on both cameras with same target and same lighting conditions. IMHO, I think it is fair to trade some AF speed for precision in MF via a long focus throw. There are many situations where speed is not the most important thing. K7 + FA 31mm Limited is not much more expensive than 7D body alone and you get one of the best lenses ever made.

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Daddy Puff · 773 weeks ago

It's not test. I don't see the target to AF. I don't see real EV. It's just speculation.

They compare 18-250 with 18-55? Nonsense. Put DA*16-50 to K-7 and compare with 17-55/2.8 with 7D. If you want real AF speed test,
put the same Sigma to both camera and compare.
Absolutely rubbish test. Nothing to discuss.

3 replies · active 773 weeks ago

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RiceHigh 110p · 773 weeks ago

I don't think it is all meaningless against what you think. It can be seen that even the Canon 70-200L on the 7D is much much faster and more decisive in AF than the K-7 with the DA*16-50 put on it.

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Daddy Puff · 773 weeks ago

ANY test demands equal terms -and opened information.

It's just homebrew quick comparision. And nothing else.

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David · 773 weeks ago

Rice, we do not see what the end result of the focusing is, whether or not it actually is in focus. Plus you cannot compare two lenses that only have in common that they attach to a camera and have glass.

Use 50mm 1.4 from both companies. I have no problem testing similar-sized lenses from each company. Comparing a 70-200 to a 16-50 lens is not fair - they are different models with completely different goals (the 16-50 is meant to be quiet). Quite frankly, I would rather see the old FA* 80-200 compared to the new Canon in a focusing test - at least they are similar in size and quality.

Rice you said the video speaks for itself.....it says that a Canon fanboi, probably self-conscious of the speed of Nikon cameras, rigged a test to 'show' how well a Canon does against a Pentax. He doesn't show us the viewfinder view, letting us see if it in fact was focused. Is it on constant focus, or for single shot, which does change things

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Daddy Puff · 773 weeks ago

The owner of this video've erased my post and blocked me....^))) ha-ha...

1 reply · active less than 1 minute ago

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RiceHigh 110p · 773 weeks ago

I think he should let people speak as long as they are civilised, even opinions are different.

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Orgya · 773 weeks ago

The owner of video is just mediocre fan-boy

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David · 773 weeks ago

The owner of the video -Duke55 - is a worthless fanboi. He blocked me too, and I think I have proof that he 'fixed' his tests. On his K7/EOS 700 dark room comparo, look at where the Canon lens stops, at the edge of its focus ring, whereas the Pentax moves in. Since they are at the same 35mm length, the test shows either 1. the Canon is closer to the target than the Pentax; or 2. the Canon is not in focus, merely stunned, not able to focus.

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orly_andico · 742 weeks ago

I've done a similar test - K20D + D-FA 100mm f/2.8 compared to Canon 40D + 100mm f/2.8 Macro Ultrasonic. Recording video of each camera. I even documented the test setup for repeatability (but haven't bothered to put them online).

(I had just gotten the 40D and macro lens, both used)

Testing was on a tripod, focusing on something at the minimum focusing distance. I rotated each lens to infinity before each test.

The Canon macro has a much shorter focusing throw, and the ring-drive ultrasonic motor is also faster. But not THAT much faster (certainly not 2X faster).

The real difference I believe in perceived "better" Canon AF performance is that it rarely hunts, even in fairly low light (and the 40D is 2-3 generations old already). Pentax has this "focus confirmation stutter" which delays the shot by a huge amount of time, up to 2-3 seconds while the shutter is locked, unless in AF-C mode.

However.. I cannot say the Canon AF is more accurate. But, the 40D is a 10MP camera and the K20D is 15MP, but it seems that the K20D images (with D-FA 100mm) are sharper than those from the 40D + 100mm Macro Ultrasonic.

Someone advised me to use AF-C so that the shutter is not locked until focus is achieved. This provides near-Canon level AF "decisiveness" but.. a lot of out-of-focus shots (much more than the Canon, even with the Canon's over-optimistic in-focus indication).

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Pasang Cctv Di Solo · 465 weeks ago

thanks, hopeful

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Wednesday, June 02, 2010

Pentax K-7 Vs Canon 7D AF Speed Test

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