DPReview.com is closing April 10th - Find out more

When will Sigma and/or Tamron produce RF lenses?

Started Jan 15, 2020 | Polls thread
Rock and Rollei Senior Member • Posts: 2,899
Re: When will Sigma and/or Tamron produce RF lenses?
2

Absolutic wrote:

Kharan wrote:

Absolutic wrote:

Sorry to resurrect this old thread, but in light of Viltrox decision to discontinue RF mount products after Canon demand, I am curious about the following questions, then answers to which I could not find by googling them:

Canon EF mount was introduce in 1986. What year did Tamron and/or Sigma introduced the first EF mount lens (any kind, manual or autofocus)? Did Tamron/Sigma have to wait the entire 15 or so years for Canon EF patent to expire?

If anyone knows, let me know. I could not find the info what were the first Tamron/Sigma EF products and when they came out.

They didn’t, at all. I don’t think there were any third-party lenses released for it in ‘86, but in 1990 at least there were already plenty of Sigma, Tamron and Tokina lenses for EF. Lenses like the Tokina 20-35mm and Sigma UC 24-50mm were launched simultaneously for EF, A and F mounts.

1990 or 1990s?

Certainly I got a 24-50 in 1991 - it fell apart a few years later. I also bought the Sigma 70-300 UC APO and the 18mm f3.5 - both of these were made inoperative by a later Canon change to protocols. The 18 was launched in early '92, i bought mine in May.
Early on, there was quite a lot of talk of how limited the lens situation was for EOS - something that seems preposterous now.

 Rock and Rollei's gear list:Rock and Rollei's gear list
Canon EOS 5DS R Canon EOS 5D Mark IV Canon EOS R Canon EOS M6 II Canon EF 50mm f/1.2L USM +29 more
Post (hide subjects) Posted by
MAC
MAC
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow