Amazing!Ī bit worse but still excellent performance you can observe at 35 mm. Such a result hasn’t been achieved by any lenses, tested by us on the Canon 50D so far. On slight stopping down to f/2.0 the resolution increases to 50 lpmm and by f/2.8 and f/4.0 it reaches a record level of 55 lpmm. advertisement -Īt 18-24 mm and at the maximum relative aperture the MTFs go to a very high level of about 48 lpmm. The funds are going to be used for paying our editorial team, renting servers, and equipping our testing studio only that way we will be able to continue providing you interesting content for free. If you enjoy our reviews and articles, and you want us to continue our work please, support our website by donating through PayPal. In order not to be groundless let’s check the performance of the Sigma A 18-35 mm f/1.8 DC HSM in the frame centre Sigma shows that their zoom lenses can break records and set new standards as much as (or perhaps even better than) the best “primes”. Now it seems we have to revise our text once more. However, after the test of the Sigma 50-150 mm f/2.8 APO EX DC OS HSM it got out of date a bit because that particular lens, designed without any compromises, was able to get to a record-breaking value of as much as 54 lpmm. The following sentences appeared from some time in the same form in all our tests, conducted on the EOS 50D. The decency level is situated near 34-35 lpmm. The maximum MTF values the best lenses can reach while tested on this camera amount to 51-53 lpmm. The resolution test of the Sigma A 18-35 mm f/1.8 DC HSM was based on RAW files from the Canon EOS 50D body. You can change your consents to the use of cookies at any given time. In this document you can find more information concerning browser settings and the way we and our social network, advertising and analytics partners process your data. If you fail to do so you should be aware that we are going to process your data according to our Privacy Policy. ![]() You can switch cookies off by adjusting your browser settings so if you donât agree with our cookie policy please, change your browser settings or leave our website. Our partners might combine information, obtained on this site, with other data they get from you as you make use of their services while surfing the internet. ![]() Information about your browsing habits is shared with our social network, advertising and analytics partners. As in the case of almost all other websites, cookies help us to personalize ads, offering you the most relevant information, allow you to share pages with social networks, make our services work as you expect and, overall, help us to monitor and improve our performance.
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