News › 40mm
This week's Firmware Friday roundup arrives just a little late, as your humble editor's been under the weather the past few days, and I didn't manage to finish writing it last night. In part, that was down to the amount of news there was to cover -- in the past seven days, we've seen updates from Blackmagic, Canon,...
Our Firmware Friday roundup this week is a single-company affair, with only Japan's Sigma Corp. having released any updates in the past seven days. If you're not shooting a Sigma lens on a Sony E-mount body, you can move along now, safe in the knowledge that there's no new firmware for your gear this week. If you...
A recently published patent from Sigma details the optical formula for an image-stabilized 400mm f/2.8 super-telephoto lens.
The patent, which was discovered by Egami and originally filed back in September of 2013, shows off a five-group lens design featuring Sigma’s Optical Stabilizer technology. It’s expected this...
Back in late 2012, Pentax introduced a new multi-layer lens coating dubbed HD, for "High Definition". According to its maker, the HD coating offered a couple of key benefits, but it's not until recently that we've been able to make a real-world comparison to test these claims. We've now done so, and the results are...
With the combined madness of the holiday season and the Consumer Electronics Show behind us, things are returning to normalcy here at Imaging Resource. (Briefly, at least -- we're only four weeks away from the annual CP+ Camera & Photo Imaging Show in Yokohama, Japan, where we're expecting another rush of new...
A few weeks ago, we told readers about an issue with Canon's EF 40mm f/2.8 STM lens, which only recently began shipping. According to the company, pressing on the lens barrel while the lens was mounted to a camera could cause autofocus to stop working.
As a temporary workaround, the issue could be resolved simply by reseating either the lens, or the attached camera body's...
Canon USA has today issued product advisories noting new or upcoming firmware for several of its products. Key among these is an updated firmware release for the Canon 7D digital SLR that--as promised last June--makes extensive changes throughout, with numerous new features seen in more recent models.
Key among the changes in EOS 7D firmware version 2.0.0 is an improvement in...
Alongside the launch of the Canon Rebel T4i earlier this month, the company also unveiled two new lens models with stepping autofocus motors. The EF-S 18-135mm STM is a variant of the existing 18-135mm design, and so optically speaking, we pretty much know what to expect there. The EF 40mm f/2.8 STM prime is a different beast, though. It's a brand-new design, and Canon's first...