megane2 said:Hi folks, which of this 3 budget standard zoom lens is sharper, better contrast, better colour and better build? Please share your views. Thinking of getting 1 but confused and spoilt by choices.
smallaperture said:Sharpness is relative. What I suggest is go to Cathay and test both the Tamron and Tokina there using your cam, under the same condition. See the shots on your 15 inch monitor and see for yourself if there is a significant difference that matters to you. If you blow up to 100% and see the difference, you will. And if you wish to, also print at 4R to compare as well.
Most of the test reports show you 100% crop at corners, at the centre, wide open aperture and so forth to make you see the minute difference. Believe me, the difference is small in practical terms. There are other attributes that matter more, like built quality, durability and convenience of use and so forth. Sharpness is only one of them - optical performance.
There are photogs nicknamed measurbateurs - they are obsessed with measurements. And for portraits, they want to see if the subject's pores on the face could be seen despite being covered by make-up.... or tell the time from the watch of a woman in a large group photo.....
Splutter said:I owned the tamron 28-75, now using canon 28-70. At the tele end, the tamron is at least on par with canon, but on the wide end, its pretty soft. Colours are also warmer with the tamron.
sidder said:i just purchased the Sigma 24-70 EX DG Macro a week ago. i tried both the tamron 28-75 and the sigma 24-70 before i purchase my sigma baby. I look at the pics from both lenses on MS Color computer and i found that the sigma gave better colour definition and wide open sharpness than the tamron i tried. the diff in sharpness are definitely very minute at f2.8 at common focal lengths. but in the end the sigma was a much sharper copy than the tamrons that i tried in MS color. i personally have a very high sensitvity to sharpness and color definition and such, and the sigma won me over. part of the considering factor was the 24mm or 28mm. That 4mm proved very diff for me in my photography.
In the end the lens must sastify you in the pictures it produces. Take note that sigma 24-70mm have two versions, one older without the macro" word and the other with it. The newer one is the one with MAcro word. I would say Sigma have improved the optics using the lessons learn from the previous version.
take note of also back and front focusing when getting the lens. Take your time to test the lens thought... happy shopping !
megane2 said:From what I learn on internet, the Sigma Macro is not as sharp as non-Macro.
Is Tamron Di equivalent to Sigma DG coating? A lot of feedback about DG is very good.
sidder said:its seems weird cos i have a fellow photographer who owns the DG DF Asp version of the 24-70( the non-macro) and he says its soft on his nikon D100. he has a EOS adapter also as he likes Canon's Soft focus lenses for his portraitture. i passed him my DG Macro to do comparison, and he says the Macro version is sharper than his. He is also considering selling or trading in his current lens for the Macro version.
Maybe its just the Nikon? lol... i will not know if u use the canon body that it will yield any diff should u try out both lenses. then again who has both lenses?
I will feel that its a match making situation in selecting the lens.some lens just have prob with some bodies until a new firmware comes out. but how can one predict whether the next firmware update will resolve the problem u have? (20D re-enactment?)
anyway rest assured, the 24-70 and the 28-75 are close to on par. both camps' users will have their opinions on their Tamron or Sigma lenses. I like the Tamron also, as it focus quitely. I also a little astounded when i first heard tamron build was not so good. but when i held it in my hand, it feels solid enough to be more than worthy that 625 dollars price tag. in fact i will love to have Tamron's smooth focusing and zoom ring on my sigma. Dun be mistaken though, Sigma is also quite well build only shortcomings is its surfaces of the housing and the zoom ring. Tokina, i have no say, IMO i will not go into those since the company is a little messy.(THK photo, who bought over who? Tokina? Hoya? Kenko?)
litechaser said:yup, i tink alot of factors are involved in len sharpness. some say Sigma better but some prefer tamron... best is to see for yourself whether which is better as u are going to use the lens, not anybody else. it makes sense to test a lens at the shops to get a good copy. luckily my copy is a very sharp one. it fact it even beat my 70-200Lf4 and 17-40L in sharpness at f4 !
megane2 said:Better than 17/40 and 70/200... hmmm... Which one? Sigma or Tamron?
sorry to side track a bit, but what and where is john 3.16? i know its in the bible btwDigi-Learner said:I got my copy of Tamron 28-75mm F2.8, DI Lens from John 3:16 about 6 months back. Wow! my copy is really sharp!
Before I make my purchase, I read many reviews and some were quite worrying. Its basically about QC issues, mainly calibration inconsistencies with zoom lenses which plague most brands, including Tokinas, Sigmas, Nikons & Canons etc. Some people feel that being Assembled in China is the problem, but I dont think so. Even lenses made and assembled in Japan faces similar problems as well. At the end of the day, it all boils down to the men & women on the manufacturing/assembly/calibration/quality control lines. Although the optical engineers at all major manufactures are able to design high quality standard zoom lenses of 24, 28-70, 80 range, they have little or no control on how the guys at the ground level produces them. In short, whats on the drawing map may not necessarily translates into what its supposes to be at the ground level.
Tamron:
Optically, mine is impressively sharp, even at F2.8. Focusing is quick and not noisy at all in my opinion. Built quality is good but not comparable to Tokinas built like a tank feel. Filter size is great because its just 67mm instead of 77mm. This well sized package gets the photographic job done beautifully without having me to carry an excessively heavy lens like the original Canon 24-70L.
Tokina:
I own a 19-35mm zoom lens which performs well. True to what most people say, its really built like a tank. The only slight drawback is the slower and louder focusing motor. Otherwise, its really great value for money. I am very happy with my copy so far.
Since I have insufficient experience with Sigma zooms, it wouldnt be fair for me to comment. The only Sigma I previously owned was the 50mm EX DG Marco. Apart from the slower and louder focusing motor, the rest are good. Optics wise, I think EX DG are generally good, as long as you get a good copy.
Hope these helps, thanks!![]()
Well, i feel the Sigma is the best choice out of the three. Its robust build is one of its strengths compared to the tamron. BTW, i don't think you should come to a conclusion that the Sigma you tested at COMEX is representative of all sigma 24-70mm. from many sites and forums, you should know that there are extremely wonderful, or- extremely bad copies of any lens-even Canon or Nikon (especially for zoom lenses, not so for primes). from fredmiranda reviews, many people have said their copy of lens is "tack sharp" etc, and they feel that they have gotten a excellent copy of the lens.megane2 said:I have tested the DG Macro during Comex. Frankly, at wide open, it's unacceptable for me.
It's still soft with or without flash. I was surprised to be so, I even switch to manual focus to confirm. My Tokina superzoom fare better.
Since there's so many test conducted with Tamron and Tokina, and Tamron has proved to be better.
Sigma is therefore the 2nd runner up.
Found a url to compare between Sigma DG DF and Tokina ATX 280, although it's older model, but I believe it's the same output as the new model.
http://www.tawbaware.com/sigma_tokina_test1.htm
Yup. thats right. the newer macro version is very sharp if you get a good copy, compared to the older DF version. Maybe its just newer technology going into making the DG macro version?sidder said:its seems weird cos i have a fellow photographer who owns the DG DF Asp version of the 24-70( the non-macro) and he says its soft on his nikon D100. he has a EOS adapter also as he likes Canon's Soft focus lenses for his portraitture. i passed him my DG Macro to do comparison, and he says the Macro version is sharper than his. He is also considering selling or trading in his current lens for the Macro version.
Maybe its just the Nikon? lol... i will not know if u use the canon body that it will yield any diff should u try out both lenses. then again who has both lenses?
I will feel that its a match making situation in selecting the lens.some lens just have prob with some bodies until a new firmware comes out. but how can one predict whether the next firmware update will resolve the problem u have? (20D re-enactment?)
anyway rest assured, the 24-70 and the 28-75 are close to on par. both camps' users will have their opinions on their Tamron or Sigma lenses. I like the Tamron also, as it focus quitely. I also a little astounded when i first heard tamron build was not so good. but when i held it in my hand, it feels solid enough to be more than worthy that 625 dollars price tag. in fact i will love to have Tamron's smooth focusing and zoom ring on my sigma. Dun be mistaken though, Sigma is also quite well build only shortcomings is its surfaces of the housing and the zoom ring. Tokina, i have no say, IMO i will not go into those since the company is a little messy.(THK photo, who bought over who? Tokina? Hoya? Kenko?)