A57 or A65 for lowlight wildlife?

Started Oct 28, 2012 | Questions thread
sensibill Veteran Member • Posts: 5,401
Re: A57 or A65 for lowlight wildlife?

theswede wrote:

Objective evaluation shows them to be almost precisely the same in actual performance. The only differences are in processing choice in camera, the amount of information in the images is the same. DxO shows this, as do independent tests.

This is a false claim.

Thank you for your graph and screenshots supporting my point. The sensors are almost precisely the same in actual performance, as expected from sensors of the same generation, so the choice comes down to personal preference of default treatment of data and handling.

No, they aren't. No, the screen shots do not support your point (which has been that there is no difference). There's a difference, is my point, and that people should make up their own minds, not to have it made for by 24MP shrill contingent shouting down anyone saying the 16MP is cleaner at high ISO.

DPR is useless for this comparison. No, scratch that, worse than useless

False, hyperbolic statement.

Not in the least. DPR can't even keep focus points consistent, much less amount of light entering the camera, so their "comparisons" are a useless pile of junk.

Your opinion might be classified as such.

That's not hyperbole. That's how it is. The hyperbole starts after that, when explaining how much time has been wasted arguing over differences which are down to uncontrolled variables and not cameras.


But ultimately the best way to determine whether a camera can do what one wants is to find photos on the 'net where someone has done what one wants to do. If they are good, then the camera can be used to produce them.

This is applicable to almost any camera above a basic compact.

Indeed. Thanks for the support.

Hilarious. So we should all have first gen 1" or 4/3 cameras because all sensor performance is irrelevant. Why ever upgrade? Why bother with ANY such tests? Why do you participate at DPR if they're so vile?

The A57 does not 'lose shadow detail'. The A57 images have less chroma noise. Period.

The A57 has less chroma noise and less shadow detail. The amount of information in the images is almost exactly equal. Even DPR shows this, although I wouldn't trust that comparison for anything at all.

You have not and cannot prove the A57 has less shadow detail at normalized resolution. Because it's a falsehood, like much else you've been posting on this subject for months (years?).

But taking photos with both and trying to make them look as good as possible is a good way of finding if the camera will match a workflow one is comfortable with.

Any camera will 'match a workflow' because you're dealing with the same (RAW) format.

Trivially incorrect, as evidenced by the differences between A65 and A57 RAW images. The in camera processing is vastly different meaning the images require different workflows to reach optimal quality.

Trivially incorrect is a good term to categorize 24MP apologists denying the earth is round the 16MP outperforms it at normalized high ISO


And since baseline image quality is pretty much equal that's a non-issue.

False, again. Proven out by DxO, DPR, my own findings and even those of Philco, who has since drunk your kool-aid and has decided the world is flat the 24MP gives up no noise performance to the 16MP at ISO 1600 and above.

In short, don't listen to claims and opinions on the forum. Go see for yourself. Ignore people that claim this or that test is irrelevant, or how to 'interpret' the data to favor one model when your eyes tell you something different.

Indeed. Ignore subjective evaluations of unprocessed images from sources with multiple uncontrolled variables.

Such as Phil's. And to say nothing of individual opinions summarily dismissing entire website methodology (DPR) and selectively hand picking only the results from other sites they agree with (like DxO).

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