mikegreenwald Loc: Illinois

The Sigma 150-600 Sport is a very sharp lens at all distances. If you are having problems at long distances, perhaps your shake reduction is off (or on if you're using a tripod). It is incorrect to say that the Canon 100-400L11 cropped to 600 mm equivalent is as sharp as the Sigma at 600. As stated above, atmospheric conditions can interfere with sharpness at an range, and with any lens.
The Sigma Sport is however very heavy, difficult to hand hold for bore than brief periods, and a burden to carry any distance. The Canon 100-400 has a real advantage there.

Warbird Loc: Sweden

Distance is no problem!
https://www.flickr.com/photos/matsbergstrom/25079567166/in/datetaken-public/
Atmosphere is almost always a problem with distant targets, but that is no better with a white lens...
Sigma 150-600 Sport is a sharp lens. I sold my Nikon 300/2.8 II after trying this one!
But, get the USB Dock at the same time. It is worth it.

suntouched Loc: Sierra Vista AZ

You seem to be able to get the job done well no matter what lens you use :) Nice images on Flickr.

Warbird Loc: Sweden

Thank you so much! :D

Bozsik Loc: Orangevale, California

I have this lens and obtain fine results when used properly. You do not have to buy a Canon lens to obtain good results. The Sigma Sport is plenty sharp.

Here are some suggestions.:

I try to get as close as possible to the subject. I also try to avoid shots over 1000th yards, or even 50 if I can get closers or wait for the animal to work it's way to me. So you get farther away with the longer lenses on a well lit day, you will begin to collect heat refracted light fromantic the subject to where you are located.

To get an idea of what this looks like on an exagerated scale, go out to your car and place your head about eye level with the roof or hood of the vehical. A nice sunny day will work well for this experiment. Try to focus on objects at a distance while piering over the hood. The subjects will be blurry and often distorted. This happens when shooting over a longer distance in decent weather conditions. To help lessen that effect, if you can acheive a more elevated position to shoot from it will reduce this effect. The other option, as I suggested before, is to get as close as you can to the subject, taking in consideration both you and you subject's safety. This is important to remember during breeding season for birds as you can scare parents from nest sites, and larger mammals can be more aggressive during this time of the year.

avemal Loc: BALTIMORE

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billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

I use Nikons group auto focus and the center auto focus point, I also use a Nikon 200-500 zoom. Never a problem.

Haydon

Your sharpness will depend on atmospeheric conditions, distance, sun, light angle, equipment, lens, tripod, camera setting and experience. You have a lot of variables to play with but I tend to photograph under 50 feet obtaining a decent shot.

imagemeister Loc: mid east Florida

It is not "incorrect" - but it does depend on sensor quality and and pixel enlargement techniques/software ........unless you have credible evidence to the contrary ??

Blurryeyed Loc: NC Mountains.

How is it incorrect, I posted a video that makes that assertion, you might want to take a look at Photozone's review and test reports on the lens as well.

cjc2 Loc: Hellertown PA

One thing I can say is that if one thinks that the Sigma 150-600 Sport is like holding a baby, then they've gotten lighter over time as this lens weighs a bit over 6 lbs. Any lens this long at this weight needs a tripod or at least a monopod for support unless one is a bodybuilder type. Also, a long lens like this requires lots of practice until you become one with it and then your number of keepers will rise. Don't expect to take it out of the box and be an expert without some work. As far as maximum distances go, IDK as I've never measured, but it works well from one end of the football field to the other. Obviously the pictures are improved if the subject is not so far away! Best of luck. Enjoy your lens. Practice with it, then practice some more!

mikegreenwald Loc: Illinois

I'm willing to learn, but I can't find the site you refer too. Can you provide direction?

imagemeister Loc: mid east Florida

I THINK this is the one ......http://www.youtube.com/watch?v=lgurGidoSJs

Mr PC Loc: Austin, TX

I have the Sigma 150-600 Contemporary and a Nikon D7200 and have gotten good shots of hawks and other birds in flight at 100 yards or more hand-held. I would say that your skill may have as much to do with it as the lens. Practice, practice, practice. I had the Sigma 150-500 previously and it was soft at 500, this lens is good throughout the whole range. I'd have to say the sweet spot is somewhere between 450 and 550 if I was forced to give an answer. Good luck.

connievloutely Loc: Quaker State (PA)

Hi All,

When I first got my Sigma 150-600 Sport I was disappointed too.

But after looking at my pictures and talking to my mentor it came down to two items.

1) Method used to hold the lens. After all a 600mm, 6 lbs lens needs to be handled much differently then the Canon 100-400mm lens. I have both of these lenses.

2). Then there is the air quality conditions and camera setup.

I am now lifting 10 lbs weights at least 3 times a day. I went out yesterday taking hand held shots at 600mm and good air quality.

The results were very sharp pictures. Now I am happy with this lens.