The A77 thread (cont'd)

artuk: I tried an A77 with a F43, to trigger my F43. In the menu it said Version 1.00. However they did not have final production firmware in it.

Given my experience with the F43 being exactly as the F58 (plus some fixes) I can be optimistic that if the F43 works, the F58 should work as well, but the F20 would probably not work.

Some good Video and still samples here:

http://vimeo.com/28075979

Edited by FX - 25 August 2011 at 12:27

maewpa wrote: [QUOTE=twm47099] ...... Unrelated and on reflection I'm wishing they hadn't bothered with the 24MP - at 16MP it might have been a near-perfect camera for me (well, a near-perfect specification EVF camera with movie function I won't use!). Still have high hopes for it, though and it looks like it will be a lot of fun to use.

I completely agree.

It's a backward step from Sony if image quality/high ISO isn't even as good as the A55! We shall see though. I've just seen an image comparison between the A77 and a Sony NEX5. The images(s) were resized and the A77 image was much noisier.

On a side note, aren't Nikon going to be using the exact same sensor as the A77? They must be happy with it. Or maybe their sensor 'tweaks' are better than Sony's?

Anyway, I'm holding fire on my opinion and purchase until proper reviews appear from people here on Dyxum and elsewhere.

RubberDials wrote:

I'm not a sports or action shooter so shoot me down if I'm wrong here, but isn't it unlikely that people would want to shoot long sequences in RAW at 24MP? That's a lot of post-processing and file management.


Not saying you're wrong, but if it's a "spray and prey" burst only one or two frames of the "peak moment" will have to be developed.


As someone who uses Sony 700s for all my Karting motorsport work _ i am enthusiastic to try the camera but concerned about things such as this buffer situation and the fact we only have SD cards which are generally slower than CF - (hopefully someone will prove me wrong on this)
As for the burst rate and producing a high workload - I personally dont use continuous that much, but it is actually switched onfor those occasions when an incident happens in front of you - problem is a sequence of karts climbing over each other etc could take several seconds - a 1sec burst filling the buffer does not sound good - again someone prove me wrong as my 700s are getting old now

It all depends on how fast the machine clears the buffer and how slow the framerate while it is doing it. Until someone sits down with the latest UHS SD cards or memory sticks and does some buffer tests, we won't know for sure.

The a700 with a non-UDMA card locks up hard after it hits the buffer, while a faster card will at least slow to 3 FPS, for instance.

raebeizof wrote: maewpa wrote: [QUOTE=twm47099] ...... Unrelated and on reflection I'm wishing they hadn't bothered with the 24MP - at 16MP it might have been a near-perfect camera for me (well, a near-perfect specification EVF camera with movie function I won't use!). Still have high hopes for it, though and it looks like it will be a lot of fun to use. I completely agree. It's a backward step from Sony if image quality/high ISO isn't even as good as the A55! We shall see though. I've just seen an image comparison between the A77 and a Sony NEX5. The images(s) were resized and the A77 image was much noisier. On a side note, aren't Nikon going to be using the exact same sensor as the A77? They must be happy with it. Or maybe their sensor 'tweaks' are better than Sony's? Anyway, I'm holding fire on my opinion and purchase until proper reviews appear from people here on Dyxum and elsewhere.

If you resize the image to pixel level I think that the A77 picture is bound to be noisier than the 16Mp A55. If you look at the image (at the same size) it will almost certainly be less noisy. Sony aren't stupid.

BTW, you can't "tweak" a sensor. All Nikon do to the sensor itself is put a different interface on it (with the 16Mp they changed it from 12 bit to 14 bit). This has no effect at all on noise.

But you're right to await PROPER reviews of a production camera before making your judgement. I reckon the A77 is going to be a winner.   

Techno wrote: BTW, you can't "tweak" a sensor. All Nikon do to the sensor itself is put a different interface on it (with the 16Mp they changed it from 12 bit to 14 bit). This has no effect at all on noise.

But Nikon won't have the translucent mirror in the light path.

Where it loses a 1/3rd of a stop of light, this is recovered by Sony by gaining up the sensor, so effectively gaining 1/3rd of a stop of ISO and corresponding noise and dynamic range etc in the process.

This is clearly evident when you compare existing results of the A55 to the A580 - if Nikon are going to be using the same sensor, then they'll be significantly ahead of the game before they make any adjustments themselves