Equipment
Courtesy Tokina, USA Tokina is releasing a new competitor in the 24-70mm f/2.8 standard zoom lens group. It’s a reasonably sized lens, having an 82mm diameter front ring, measuring 4.25 inches long, and weighing 2.2 pounds. That’s just a bit smaller and lighter than the Tamron 24-70mm f/2.8 VC USD or Canon 24-70mm f/2.8 Mk […]
Equipment
Image Courtesy Sigma USA I generally do MTF testing on multiple copies of a given lens so that I can present the averages, look at sample variation, and stuff like that. I’m always aware that looking at any single copy of a lens, especially a zoom lens, gives only a limited prediction of how […]
Lenses and Optics
We’ve finished, mostly, our fairly long series of articles on SLR prime lens variation. We started with prime lenses for several reasons. They are much quicker (and quicker is a relative term here) to test than zooms. They are simpler lenses and we expected that meant they would have less variation. We learned a lot […]
Equipment
We are currently teaming up with our friends over at Zacuto as a part of the #withmycamera Giveaway. Today, you can win a $600 LensRentals.com Rental Credit as well as a $1250 Zacuto Gift Card! Check out all the details here! I think this would be a great opportunity to talk about one of my […]
Lenses and Optics
Brandon has accomplished much during his summer with us, including several things I never thought we’d be able to do. One of those things was measuring the MTF of supertelephoto lenses on our optical bench. A vertical bench just isn’t designed to handle the mass of those big lenses and technically isn’t supposed to be […]
