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I have two Sigma 24mm f2.8 Superwide 2 lenses for my D7000 and they are well over 20 years old and unbelievably sharp, far, far sharper than the Nikon 24mm f2.8D which i sold in order to get the Sigma.
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I have three Sigma lenses - the 10-20mm and the 70-300mm (+Macro) and the 120- 400mm OS.
I like them all and they can all take sharp images even the longer ones if you have them on a tripod.
The 120-400 is, perhaps, a little on the heavy side and you know you have it in your bag if you are out all day!
I'v had 3 Sigmas, all Nikon fit.
My 10-20 I still have and it's great - I doubt the Nikkor is any better. I would agree that the 18-200 was a bit disappointing and also quite heavy. I've replaced it with the newer 18-250 as my do-it-all lens for travelling. It's actually better optically than the 18-200 and a lot lighter IMO.
I have the sigma 150-500mm, 70mm macro and the 70-300mm DG macro and all three have performed well and have been great value for money
With any make, you'll hear some folk swear BY them, whereas other swear AT them!
I have just purchased the Sigma 150-500mm lens , have used it once and seemed ok but now have been told by some epz'rs that I have purchased a lemon , a bit disappointed to hear that
Colleen......a new lens always needs a bit of 'familiarisation'.....& takes a while to establish it's qualities, & optimum settings.....practice, & more practice, until
you find it's 'sweet spot' !!.
Long reach zooms aren't easy to handle, so get to know it's weak points (if it's got any ?), & avoid 'em when necessary !
I don't think any company makes a 'bad' lens these days.....they wouldn't sell otherwise !!
Have a look through the gallery & see what results others are achieving with this lens......I certainly wouldn't say no to one !!.
Quote: I have a 120 - 400, a 17 - 70, and a 10 - 20 all work great, only one thats given me trouble is the 120 - 400 it had to have a new focus motor. Also the last on i bought was the 17 - 70 came with a 3 year guarantee, i am not sure you will have to check to see if they are still offering this
I also have the 120-400 plus a 18-250 Sigma lens. Both came with the 3 yr warranty and though the 18-250 is relatively new, neither has given me a problem and have gotten great shots with them. One additional thing, some places offer programs to extend the mfg warranty if so desired. If you have concerns then that can be a good option for your purchase.
Thumbs up for the 50-500 I used to own and the 17-35.
I have two Sigma lenses and I use them all the time on my EOS7D. Never had a problem with either of them. OTOH my Canon lenses are wearing out
I had one Sigma lens, the 150mm f2.8 Macro, great lens, IQ and build quality, well worth the money at the time.
I have 4 Sigma Lens 18-50 f2.8 EX, 50-150 f2.8 EX, 10-20 f5.6 EX and my latest one is a 18-250 6.3.
The 50-150 had to be returned to Sigma UK as it was back focusing this was on a Canon 400d the first 3 lenses are about 6 years old and have given good service.
the 18-250 is about 2 years old and is a very good every day lens, my only criticism is I have to use the zoom lock as the zoom will rack out when walking with the camera on your shoulder and the lens pointing down.
I have recently upgraded my camera body to a Canon 70D and it has become apparent is all 4 lenses have the same correction on the 70's "AF micro adjustment" of +10.
Not sure if this is a camera issue of the lens?, but anyway all 4 lens are still producing very good images
Quote: Live view (especially zoomed) is deadly accurate when manual focusing, of course, which would seem to me to be reasonably transferable to manual focusing with a precision screen.
Your second point is well made.
Your first point is as fallible as that of those who blindly claim phase detect AF is 100% accurate with everything when camera makers rightly point out it is not.
Nikon list a range of subjects which can cause LiveView errors, as do Canon in for their cameras.
Liveview is less likely (as distinct from incapable of) an error because it uses a very small segment of the image with no risk of focus away from the centre of a viewfinder mark as can sometimes happen with phase detect. Another advantage of live view (working from a tripod) is the ability to zoom in prior to taking the image to check the zone of sharpness is exactly where required.
A disadvantage of live view in current Nikon DX and FX cameras is focus tracking ability is little more than walking pace.
We have three Sigma lenses, all of which we've owned and used for years: 24/70 ex dg macro, 120-400 os dg and 300 f2.8 ex dg. 120-400 broke down after a couple of years use. £90 and a couple of weeks later it's back and good enough to use on my D800. 300 2.8 is fantastic and almost half the price of NIkon equivalent. 24/70 works well, not the best out there, but it does its job well enough.
Also have Tamron 90 macro (non-vr) plastic fantastic.
Most unreliable lens we've ever owned - Nikon 70-300 AFS VR G IF ED - broke, fixed on warranty, broke again and binned.
Third party lens manufacturers are catchng up to the big boys, and in many areas exceeding them, with reduced cost to purchasers.
Third party lens manufacturers are catching up to the big boys, and in many areas exceeding them, with reduced cost to purchasers.
As we are discussing Sigma the recent 150-600 and 50mm f1.4 "Art' are good examples.
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