Sigma 28-70 F2.8 EX DG user experience

[nic67]

Nice pictures, I think the PQ is a tad better than the 28-70. I love those bokehs.

As for CA, I suppose the last flower picture does show color fringing.

From these pictures, I believe Sigma has proven itself as a good value lens supplier, especially in price when compared to Camera makers low and mid-price lenses.

Enjoy your lens. :thumbsup:

Is this lens still available? Remember reading somewhere that Sigma had ceased production for the 24-60.

 

[longko]

Nice pictures, I think the PQ is a tad better than the 28-70. I love those bokehs.

As for CA, I suppose the last flower picture does show color fringing.

From these pictures, I believe Sigma has proven itself as a good value lens supplier, especially in price when compared to Camera makers low and mid-price lenses.

Enjoy your lens. :thumbsup:

Is this lens still available? Remember reading somewhere that Sigma had ceased production for the 24-60.

I doubt it's CA for the last flower, could be Pentax color. Maybe these non sharpen/color correction shots will let u judge the CA better.

Yeap they ended production for it, that's why some US retailers are clearing them at cheap prices My Pentax is only US$200, other mounts are like US$220 on Amazon. Problem is you'll need go thru Vpost, which takes abt 2 weeks to reach >.<

 

[calebk]

The railing photo shows that its CA handling performance is quite high.

 

[nic67]

These are the test shots using a Nikon D80 body, Sigma 28-70mm EX DG F2.8 at various F-stops, no filters on lens, stationary on table. Pictures were shot in raw and converted to JPG, reduced in size to 50%, no additional sharpening, ISO 200, 0EV compensation, no flash was used. As these shots were done in room lighting, timing were long.

Shots at 28mm.

Shot at 28mm F2.8,time 1/2 sec

28mm F4, 1 sec

28mm F5.6, 1.6 sec

28mm F8, 3 sec

 

[nic67]

Cont'd from previous post, shots at 70mm.

70mm F2.8, 1/2 sec

70mm F4, 1/2 sec

70mm F5.6, 1.3 sec

70mm F8, 2.5 sec

Thanks for looking.

 

[denniskee]

found this site, not sigma 28-70, but sigma 24-70 f2.8 against canon 24-70 f2.8

http://www.pbase.com/lightrules/2470exl

the sigma seems to perform better.

 

[rapier84]

found this site, not sigma 28-70, but sigma 24-70 f2.8 against canon 24-70 f2.8

http://www.pbase.com/lightrules/2470exl

the sigma seems to perform better.

Got the Sigma and used the Canon version extensively (good friends ;p), I'd agree with the tester on PBase that given a good sample of the Sigma, optically they are very very close. The Canon just have a little more contrast. If a good sample of the Sigma can be found it's as sharp, just that USM can get pretty addictive. :bsmilie: But honestly for the price of the Sigma, I couldn't have asked for more.

 

[jensentan]

hi...is there any different between 24-70mm f2.8 vs 24-70mm F2.8 Macro for sigma...how come the lens stucture is different althought the focal lenght is the same. need some help on this.

 

[nic67]

hi...is there any different between 24-70mm f2.8 vs 24-70mm F2.8 Macro for sigma...how come the lens stucture is different althought the focal lenght is the same. need some help on this.

There's a difference at least in that the 28-70 f2.8 has 1 more element (14 element in 12 groups) than the 24-70 macro (13 elements in 14 groups). Also from the MTF charts, the 24-70 macro was supposed to have better resolving power compared to the 28-70, I believe the designs were different in optimizations. The 28-70 macro has a clutch design for manual over-ride, the 28-70 is only screw driven by camera body, this difference is enough to warrant body size difference already. Besides, if you compare to Nikkor (28-70 f2.8, no longer in production) or Canon design, the lens in this range were even heavier and bigger in size.

 

[jensentan]

hi..Nic67 thanks for the advice.I got a offer for 24-70mm F2.8 Macro with 82mm UV filter at sgd700. is there any other lens suggestion for this budget?

 

[nic67]

Hi,

$700 for the 24-70 f2.8 macro is a good price, but given that a brand new piece would cost about $80 more, you may have to consider the age of the lens you're looking at.

My take would be to be on hold for the new Sigma 24-70 f2.8 HSM, but if you are really in need of such focal lengths, I guess the $700 is still a good buy.

Another route I suggest you looked at would be from the 2nd hand shops for a Tokina 28-70 (or 28-80, I can't remember exactly) f2.8 for around $430-560 or thereabouts.

I would whole heartedly recommend the lens I use, as it cost less than the $700 you will be buying at brand new. Besides, the 82mm filter in the 24-70 macro is quite expensive, not sure if you are given the filter with purchase?

Anyway I hope you find a good piece and enjoy the lens.

 

[calebk]

hi..Nic67 thanks for the advice.I got a offer for 24-70mm F2.8 Macro with 82mm UV filter at sgd700. is there any other lens suggestion for this budget?

A new set of that lens retails for almost that price (of course, without filter). I don't think it's a very good offer.

 

[khant]

Hi All

I just bought Sigma 28-70 f2.8 lens yesterday. It costed me SGD740 include filter from funan digital mall. I was not sure price is resonable or not?. I bought it after viewing user experience. This is my first time using sigma lens and try to shoot some pix at indoor and compare with nikon f3.5 w/o flash. Len is no OS. so I hold up firmly and shoot at indoor light. I could not find the clear focus on some pix that I took. Don't know why?

Is there some setting need to do at my camera?. I am using NIKON D2H and mostly I took indoor pix with program auto, auto WB and smaller ISO range 200~ 400. I found Nikon lens got more clear focus. kindly advice to me if you have similar feeling.:sweat:

Thank in advance.

 

[redname]

hi everyone,
just bought a 2nd hand one 28-70 F2.8

saw on the 1st post that the filter size is 67mm but mine is 77mm, is there a different model?

one more thing, i kind of find the pics to be rather soft at 70mm, is this common?

 

[ghost04]

anyone knows wats the current price for the 24-70mm f2.8 HSM version??

 

[ShawnPoh]

anyone knows wats the current price for the 24-70mm f2.8 HSM version??

Just Called MS color 3 hours ago, S$1550 w GST, Also check Nikkor 24-70 S$2550 w GST

 

[ghost04]

Just Called MS color 3 hours ago, S$1550 w GST, Also check Nikkor 24-70 S$2550 w GST

$1550!!
wa can get a 70-200mm f2.8 + or - there liao...
nikon standard one...no point asking..