Sigma APO 150-500mm F5-6.3 DG OS HSM - Bigmos

Looks good to me. I will definitely have to put some consideration into this or the 100-400L

TeamSpeed wrote in post #5701170
Like Rudeo said, there are many, many 300D, 10D and 1D classic users out there, from 4 to 6mp. Again, too many people fall for the high resolution hype, and if you don't crop alot/print anything larger than an 8x10, all those pixels aren't doing you much good, other than psychologically, where you know you could print a 20x30 or larger, but don't. Printing an 8x10, for example, only requires a 4mp shot.

Oops, I forgot they were 4-6MP
Just got to say that while MP is over-emphasized to pull in the punters it obviously does increase resolving power and allows for more image cropping.
OK, back to topic and these images look quite promising. Just waiting for the 150-500 vs 100-400 shootout (...Jojo... )

SO i though id do another test these are jpegs from the mk3 so have a little in camera sharperning and i just did auto levels in cs3
Rob

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and the sig at 400 with the ef 400 f5.6
ALL shots wide open by the way and lens resting on a beam IS /OS ON
Rob.

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WOW! That difference is staggering and disappointing. I knew the Sig wouldn't really "compete" with these lenses, but I thought it would at least try. I wonder what the 100-400 looks like in comparison.

and this is the sigma at 500mm at its closes focusing aprox 6ft away.
Rob.
Just IGNOR THIS SHOT I MESSED IT UP

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In2Photos wrote in post #5701696
WOW! That difference is staggering and disappointing. I knew the Sig wouldn't really "compete" with these lenses, but I thought it would at least try. I wonder what the 100-400 looks like in comparison.

it does not suprise me as i own the lenses and know just how good they really are BUT the Sigma for the price has a fair bit going for it in a long range zoom with OS
Birds may show up its limtations but again for the price and with good pp work it can be exseptable .
subjects with not so much fine detail will be fine through the zoom range .
Rob.

I sure hope a $6000 lens would spank the pants of a $1000 super zoom.
for 100% crops i dont think they are that bad. especially if there is zero PP done yet

GyRob wrote in post #5701742
it does not suprise me as i own the lenses and know just how good they really are BUT the Sigma for the price has a fair bit going for it in a long range zoom with OS
Birds may show up its limtations but again for the price and with good pp work it can be exseptable .
subjects with not so much fine detail will be fine through the zoom range .
Rob.

Agreed.

05Xrunner wrote in post #5701756
I sure hope a $6000 lens would spank the pants of a $1000 super zoom.
for 100% crops i dont think they are that bad. especially if there is zero PP done yet

But what about the $1200 400 f/5.6? And some "PP" has been done in the form of in camera sharpening.

In2Photos wrote in post #5701775
But what about the $1200 400 f/5.6? And some "PP" has been done in the form of in camera sharpening.

its a $1200 prime. its only function is 400mm. doesnt have to focus on any other focal length like the zoom. they are always alot sharper.

05Xrunner wrote in post #5701809
its a $1200 prime. its only function is 400mm. doesnt have to focus on any other focal length like the zoom. they are always alot sharper.

I understand that. So why is it that the 100-400 can be on par with the 400 5.6 (sure it is more expensive)? Maybe not all copies but some. How do you think the Bigma compares? Many reports say that it is also on par with the 100-400 and 400 5.6 and it is a 10x zoom, not a 3.33x. I didn't expect prime like IQ but I also didn't expect consumer grade IQ either. I was expecting something in between but leaning towards the prime side, not the consumer zoom side.

Rob, any chance we could see some crops taken when stopped down a little?

In2Photos wrote in post #5701873
Rob, any chance we could see some crops taken when stopped down a little?

lol in a word no.
i did not do any as all will be a bit better stoped down as with any lens, these are just to show what to exspect at the wide open setting.
Rob.

GyRob wrote in post #5701990
lol in a word no.
i did not do any as all will be a bit better stoped down as with any lens, these are just to show what to exspect at the wide open setting.
Rob.

OK. Was just curious how much better it got at say, f/8.

Rob,

Could you show a 500mm/6.3 and a 500mm/8 crop (ten pound note shots), one after another, both from the sigma? The sigma 120-400 benefits tremendously from just a 1/3 stop aperture shrinkage, and I am curious if it's big brother behaves similarly.

Thanks!