C
ck3
Guest
"Double or more" is a pretty specific claim. How did you arrive at that number? Why not "triple or more" or "20% or more"?
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Just posted: Our In-depth Sony SLT-A99 review
- Thread starter Amadou Diallo
- Start date
This is not correct. The two are essentially equal at maximum aperture.
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www.the-digital-picture.com
The Zeiss is slightly worse in the center and slightly better in the corners. Photozone finds the same in their test charts.
In this particular example, you would be wrong unless the target was an object. I'm keen on stabilization with lenses over 100mm. Below that, subject-induced motion blur will set in long before you see the advantage of stabilization. Three stops down from 1/85 is around 1/10. My typical cutoff for stationary people is about 1/50, and significantly faster if they're liable to be moving.
You're right. It could easily be a 90% difference in some circumstances. Bryan Carnathan over at The Digital Picture likes to test with a horse running at the camera. Rob Galbraith does the same with sprinters. Both the 5D III and the 1D X can nail upwards of 4 in 5 shots at full burst rates in these tests. Based on reviews here and elsewhere, the A99 may well get nothing in focus, though some folks here suggest otherwise. By all means try it and report back.
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Amadou Diallo
Active member
Thanks for the comments. Our issue with the AF performance when shooting fast-moving athletes was not in the camera missing focus by locking onto a stray subject that fell within a different AF point. It was, rather, that the camera knew what it was focusing on, but was unable to consistently predict subject movement between exposures.
The lack of live view is not specific only to panning. When you're shooting a burst of images of a particular action, ie someone jumping or shooting a ball, you don't know when the real time action has stopped because you're seeing the previous frames. If you're used to shooting with an OVF that can be a jarring experience and also make precise timing difficult when trying to catch specific moments.
The lack of live view is not specific only to panning. When you're shooting a burst of images of a particular action, ie someone jumping or shooting a ball, you don't know when the real time action has stopped because you're seeing the previous frames. If you're used to shooting with an OVF that can be a jarring experience and also make precise timing difficult when trying to catch specific moments.
C
ck3
Guest
Why not consider that it might be even less. Or that in some circumstances the A99 might hit more than the mk III? Actually I have no idea.
The review on this site doesn't suggest that at all (the criticism about the performance of the AF was made with reference to indoor basketball). And I cannot try it since I don't own the camera. And that would be my main point: I wouldn't make any claims (positive or negative) about the performance or usability of a camera I don't have any experience with
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Amateur Sony Shooter
Veteran Member
You have mentioned this "previous frame" issue before, while it's true for A77 and other SLT camera, but in the case of A99 things are different now. Have you tried turning preview off? I did, and also turned off face recognition/jpeg NR, the result is much more "direct and assuring" experience. Hardly any lag that prevent me from getting high keeper rate. In my typical burst (usually 8-12 frames) I can easily get half of them in perfect focus.
Cacophonic Visions
Well-known member
Except that's the 85 ZE, not the 85 ZA. The ZA isn't even listed on that site you posted there, however it is listed in tests on other sites and tests better than the ZE/ZF model.
ZA: 85ZA
ZF: 85ZF2
85 1.2L II: 85L
ZE vs. ZF: ZE compared to ZF
ZE vs. ZA vs. 1.2L: 85ZE, 85ZA, 85LII comparison
Just because you don't care about stabilization below 100mm doesn't mean others don't appreciate it. 3 stops down may not be ideal in some situations, but even 2 stops negates the "high ISO advantage".
dennismullen
Veteran Member
Do you shoot jpg?
Amateur Sony Shooter
Veteran Member
I shoot RAW only but turning off jpeg option free up buffer room and reduce clearing time.
Mirrors Galore
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Mirrors Galore
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They said since the light to the AF sensor is "continuous" it was supposed to be better, plus the a99 has 2 AF systems working in tandem. What gives?
Mirrors Galore
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Gotta love it. DPR gives a great review, and we have people praising it and questioning the staff's knowledge in the same breath.
OntarioJohn
Senior Member
Kinda shows that we're actually very objective and put thought into things rather than just sounding the trumpets and proclaiming our godliness and ignoring faults...
I shoot events as well, and the articulating LCD with fast PDAF in live view and subject tracking has given me an incredible amount of keepers where the Canon shooters could not even lock focus. It's a godsend when you are in a crush of photographers trying to get the right shot, or in a concert, or at a journalistic event, etc.
So far, in terms of $$$ earned from selling shots, I'm up by a factor of 5 over my colleague who shoots with Canon.
So yeah, it's a fantastic camera for events.
Craig Gillette
Forum Pro
And many other endeavors. For some outcomes you have to have the right tools.
sonyphotobug
Senior Member
I have the A850 and love it. The A99 would be a great upgrade, but not as much as upgrading to the A850. So, I can wait until I can afford the new A99.
The A99 would be GREAT main camera, then my A850 could be my backup.
The A99 would be GREAT main camera, then my A850 could be my backup.
The_Wicker_Man
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