Tamron has confirmed full details of its previously announced SP 35mm f/1.4 Di USD (Model F045) lens.

The optic, which was announced as being under development back in February, will be made available for users of full-frame Canon and Nikon DSLRs, such as the Canon EOS 5D Mark IV and Nikon D850.
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https://www.techradar.com/news/tamron-makes-its-sp-35mm-f14-di-usd-official