It is just a hazard of using third-party lenses in today's camera market - there are bound to be compatibility issues from time to time, and lately Sigma and Canon have not been playing nicely.
Sigma today released a memo noting some compatibility issues with Canon's latest release, the 5D Mark IV and also noted some other general Canon compatibility issues. . thephoblographer.com
Specifications and camera compatibility information has leaked out ahead of this weeks launch for the W-P1 wifi adpator. Compatible Cameras: EOS 7D Mark II EOS 5DS R EOS 5DS Specifications: CF card is required when using the Wi-Fi function Wireless standards: IEEE 802. canonrumors.com »
2016-08-22 10:14
In the past few years, we have witnessed the beginning of the end for the DSLR. CIPA reports have shown a toward-facing trend in the past, with this segment seeing a 20% decline. While people debate that the DSLR reign will continue, despite the odds, we must face the harsh truth: nobody is ready to revive them.
There's nothing wrong with saving money on EF glass, the EF to RF adapter with third-party lenses works just fine. There is still inventory of some high performance SIGMA lenses for the EF mount and today B&H Photo has the Sigma EF 28mm f/1.
Canon has been known to not work with third-party lens makers. But this year, that changed. With Sigma, Canon has opened a new pathway for their APS-C cameras to get more lenses. There have been rumors that Sigma will launch a bunch of new lenses, and now Sigma Global has announced the dates for the same, as well as the focal lengths.
CineD mentioned something interesting in their review of the Sigma 28-45mm F1.8 DG DN Art lens. Sigma has already announced that they will launch the following Sigma APS-C lenses for the RF mount – the first three are on my Christmas wish list (Craig if you are listening – ahem). But notably missing were any [...] Source
Last week, a report came out of Japan suggesting that Sigma was no longer producing lens filters, including its UV protective and circular polarizing filters. Sigma tells PetaPixel that this report is false and that the company still makes filters. [Read More]
Sigma's CEO Kazuto Yamaki says that he is "very much personally interested in supporting medium format," and now that the company has filled out its support of full-frame mirrorless, perhaps the time to expand to larger sensors is nigh. [Read More]
In news that I'm sure everyone here knows I'll not like (but we won't get into that today). Sigma seems to have stated that the plans for further RF development are quite a bit away. Sigma's President, Mr Yamaki was talking to Mynavi News at CP+ and shared some information about the question that is on [.