Staff Profile

Rishi Sanyal
Rishi Sanyal
Science Editor

Although I'm a scientist by training, having recently completed my Ph.D in biophysics, photography has always been a huge passion of mine. It's been an incredible opportunity to meld these two interests together here at DPReview!

Editorial content

Under the hood: A closer look at the Sony a7R II

There's a lot of new technology in the Sony a7R II, and here we were briefed on some of the salient features by Sony engineers during a recent Sony Digital Imaging event in Portland, OR. Join our Technical Editor Rishi Sanyal as he explains some of the capabilities of this camera, and why they matter to photographers. Click through to read more

Sony Cyber-shot DSC-RX100 IV Review

Sony rejuvenated the premium compact market in 2012 when it introduced the Cyber-shot DSC-RX100. The RX100 took a 1"-type sensor and relatively fast zoom lens and put it into a body that can slip into your pocket. Every year since has seen the arrival of a new RX100 model. The RX100 II added a new BSI CMOS sensor and hot shoe. Last year's RX100 III lost the hot shoe but gained a faster (but shorter) lens and clever pop-up EVF. The latest model inherits all of those things but adds a new stacked CMOS sensor that, according to Sony, is literally years ahead of the competition.

Sigma 24-35mm F2 DG HSM A real-world sample gallery posted

There's been a great deal of interest in the Sigma 24-35mm F2 Art lens since its launch last month. And who can blame the internet for getting excited over the world's fastest full-frame zoom? With all of the appeal and high-end touches offered by Sigma's 'Art' series, the 24-35mm just begs to be taken out for a spin - and DPReview's Deputy Editor Rishi Sanyal did just that. See the gallery

DxOMark: EOS 5DS/R sensor is highest-ranked Canon sensor yet

DxOMark published its report on the 50MP sensor in the Canon's EOS 5DS and 5DS R. They're the best-performing Canon sensors to date, offering massive resolution along along with small dynamic range improvements. Do the cameras raise the bar relative to competitors though? Our technical editor Rishi does a thorough analysis, using DxO's data to pit the 5DS against the Nikon D810. Click through for more

Analysis: Sony a7R II and RX100 IV autofocus systems

Sony recently shook things up with the announcement of the 42.4MP, backside-illuminated full-frame a7R II mirrorless camera, alongside stacked 1"-type sensors in the updates to the popular RX100 and RX10 lines. We put their new AF systems to the test in our brief hands-on time with the cameras recently. See videos of the cameras in action

Production Canon EOS 5DS and 5DS R added to studio test scene

We've updated our Canon EOS 5DS/5DS R First Impressions to include studio test samples from final production versions of the cameras. The 5DS and 5DS R share a 50MP full-frame CMOS sensor and are identical in every way except for one: the 5DS contains an anti-aliasing filter, while the 5DS R has a self-canceling filter. While we've previously tested a beta version of the 5DS R, we've finally been able to put final production versions of the two cameras through our studio. Read more

Canon EOS Rebel T6i Review

The greatest Rebel yet. That's a phrase we mutter about once a year. This time, we really mean it, and by a factor of two. The Canon EOS Rebel T6i, as well as it's companion, the T6s (known as the 750D and 760D outside of the US) both feature a new 24.2MP APS-C CMOS sensor (up from 18MP on the T5i / 700D) coupled with a new 7560 pixel RGB + IR metering sensor for more accurate metering. Although both cameras are very similar there are also distinct differences, so each will get it's own review. You can read about the T6s here.

Opinion: Did Sony just do the impossible?

The Sony a7R II is the company's newest addition to the popular full-frame mirrorless line, and caused quite a stir with its introduction earlier this month. In this opinion piece technical editor Rishi Sanyal explains exactly why he thinks this camera is potentially groundbreaking in many ways. Read more

Analysis: DxO ONE - the World's 'First Truly Connected Camera'

DxO's new camera, the ONE, offers an appealing combination of features and some highly impressive technology. Designed to be used in combination with Apple smartphones, the ONE is built around a capable 1"-type sensor and bright 32mm equivalent lens. DPReview's technical editor has been digging into the specifications, and talking to DxO's resident scientists to find out what makes the ONE tick. Click through for his analysis

Canon EOS Rebel T6s/T6i (760D/750D) First Impressions Review

The greatest Rebel yet. That's a phrase we mutter about once a year. This time, we really mean it. The Canon EOS Rebel T6s and T6i (known as the 760D and 750D outside of the US) both feature a new 24.2MP APS-C CMOS sensor (up from 18MP on the T5i / 700D) coupled with a new 7560 pixel RGB + IR metering sensor for more accurate metering.