First off, I want to be clear that while I was aware that this adapter was in the works, but I have not had one in my hands to test. I’m hoping to have a chance next week at WPPI in Las Vegas. In the mean time…
DP Review Raves:
“Given our recent finding that Sigma’s new adapter can confer full AF functionality to a Sigma lens attached to an a7R II, including continuous Eye AF, Lock-on AF, and phase-detect AF in video, I’m having a hard time understanding why Sony can’t do it with their own lenses on their own adapter on their own camera!
“This also means that Sigma’s adapter is far better than the Metabones adapter in some way, since it supports all AF functions for Sigma lenses on E-mount (we haven’t tried Canon EF lenses on the Sigma adapter yet though).
“In fact, I’m understating my excitement at essentially being able to use a Sigma Art lens and have it act like a native FE mount lens on an a7R II, in almost every way. We haven’t confirmed this, but it’s certainly what it appears like trying out the combination for a few minutes in my hands! Will be curious to see if a 35L II also worked like this attached to a Sigma adapter.
“That’d predict we’d be one step closer to a real hybrid camera.”
Sigma Manages Expectations:
On the other hand, Sigma’s own Introduction Video for MC-11 Mount Converter tells a much different story. Is Sigma just trying to manage expectations of did DP Review tumble upon something Sigma didn’t know?
The video explains that MC-11 adapters are specifically designed for 15 Sigma Art, Sport and Contemporary Sigma EF and SA mount lenses. When a supported Sigma Art, Sport or Contemporary lens is mounted on MC-11, the lens is no longer operates using the original lens firmware. It instead operates using the MC-11 Control Application which controls aperture, image stabilization as well as correcting for chromatic aberrations and distortion.
Sigma’s list of Sigma EF and SA lenses supported on MC-11:
Sigma 24-35mm F2 DG HSM Art Lens
Sigma 24-105mm F4 DG OS HSM Art Lens
Sigma 120-300mm F2.8 DG OS HSM Sports Lens
Sigma 150-600mm F5-6.3 DG OS HSM Sports Lens
Sigma 150-600mm F5-6.3 DG OS HSM Contemporary Lens
Sigma 20mm F1.4 DG HSM Art Lens
Sigma 24mm F1.4 DG HSM Art Lens
Sigma 35mm F1.4 DG HSM Art Lens
Sigma 50mm F1.4 DG HSM Art Lens
Sigma 17-70mm F2.8-4 DC MACRO OS HSM Contemporary Lens
Sigma 18-35mm F1.8 DC HSM Art Lens
Sigma 18-200mm F3.5-6.3 DC MACRO OS HSM Contemporary Lens
Sigma 18-300mm F3.5-6.3 DC MACRO OS HSM Contemporary Lens
Sigma 50-100mm F1.8 DC HSM Art Lens
Sigma 30mm F1.4 DC HSM Art Lens
Notes: MC-11 is not compatible with teleconverters. The MC-11 mount converter has a USB port that allows adapter firmware to updated for compatibility with future Sigma lenses.
So who is right?
If Rishi is correct (and he is a really, really bright guy) this a huge leap forward for Smart Adapters – even if only in regard to the 15 supported lenses. Plus it would also mark the only time I can recall a camera or lens manufacturer actually under-hyping a product….