[pics] SD10 vs. 20d sample

Started Feb 21, 2005 | Discussions thread
SigmaSD9 Senior Member • Posts: 2,013
Re: [pics] SD10 vs. 20d sample

dr.noise wrote:

ghoerdt wrote:

So much for 8.2MP being more than 3.34x3MP,
and for the 50/1.4 killing the EX 50 Macro...

Actually, there is some aliasing in SD10 upsampled shot. I think it
can be reduced by decreasing sharpness before upsampling. I am
still not good at upsampling tasks.

And 50/1.4 is really excellent lens and pleasant to work with.
Might outperform 50EX at 2.8, but I would not say kill, no.

It kills it. The difference is largest at or around f/2.8, where the 50 EX is very soft and the 50/1.4 is already approaching optimum sharpness, which probably occurs around f/3.5 to f/4.

With both at f/2.8 using a well controlled scene, if the 50/1.4 produces a 9MB X3F, the 50EX might produce a 6.5MB file, just to give you an idea.

I have plenty SD10 shots with 50EX delivering single-pixel and
maybe sup-pixel resolution. That means, even if 50/1.4 is sharper,
it will not gain any extra resolution on SD10.

I recommend you use both before reaching a conclusion.

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