Concluziile la AF tuningul facut mi-au placut si au fost chiar utile, pentru ca in principiu ele ar putea arata ca nu vorbim de o decalibrare sistemica. Restul comentariilor mi-a displacut, asa cum am si punctat.
Nici eu nu sunt adeptul polemicilor - in orice caz nu pe forumul asta - dar nu agreez nici derapajele inutile nici tonul condescendent fara motiv.
Revenind la subiect - tocmai am gasit o discutie despre D7000 la fotografiat pasari, pe Nikonians, cu referiri directe la comparatia sistemului de focus intre D7000 si D300.
Linkul e aici, contine si imagini si cred ca poate fi intersant pentru subiectul discutat:
http://www.nikonians.org/forums/dcboard ... 412&page=1Pentru cazul in care nu puteti accesa, copy/paste concluziile tipului care a incercat un 500VR + TC14E pe un D700, cu setarile: 1/1600, ISO1250, f/5.6
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I meant to add some subjective impressions:
- AF initial acquisition seemed very snappy, which was a pleasant surprise. It certainly did not seem any slower than my D300 to acquire the target and to tell the truth it felt faster than the D300. Maybe it felt faster because I did not have too high expectations and they were exceeded. We'll see; I have shot too few images to say this authoritatively.
- tracking seems more sure-footed than my D300. There's two elements to this. I have some 12-shot sequences of distant swans and also ducks where 10 of 12 are perfectly fine (I also have some sequences where I blew it too ). The other element is tracking a bird in front of a busy background - again subjective and after very little use - I have this uncanny feeling using 9-point dynamic that the AF tracks much better without grabbing on the background. And this was on some very distant subjects where my D300 I think has a greater tendency to grab on the background. I've got Delay set to Short, just like on my D300. Very subjective conclusion, don't take too much stock in this yet.
- Is it possible the AF points are smaller, therefore less tendency to grab on the background?
- ISO1250 was a little noisier than I hoped but conditions were dull. I am keen to see this in a variety of lighting.
- regardless AF does not seem worse than my D300 and my overall impression is it is better.
- I notice the smaller buffer and slower frame-rate (6 vs. 8). I have to be more disciplined about mashing down the shutter and holding it there. Not entirely a bad thing.
- I'm reviewing the day's shooting as I write this, 250 images, and am getting more excited as I go through them. I have this crazy feeling that all I had to do was wave the lens (on gimbal today) in the general direction of the birds and it was nailing initial acquisition and then pretty much every image in the sequences. I do not feel my D300 does this.
- Because a lot of my sequences today were fairly distant, maybe if the birds were closer the AF might have had a tougher time keeping up.
- About two weeks ago on dpreview there was a thread by an experienced Eagle shooter that normally shoots a D3/400 2.8 and he returned his D7000 because it was demonstrably (he showed samples) not nailing focus like his D3. I am very relieved to report I am seeing NOTHING like that.
- Really on the AF side of this camera, if I can repeat what I did today with some closer targets, I will be very happy with the D7000. I can tell you I am surprised and pleased. "In alta interventie mai incolo, tipul a facut si cateva teste pe tinte mai apropiate... si au confirmat rezultatele din prima serie.