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Canon EF and RF Lenses – All Autofocus Motors

exclusivearchitecture.com

11–20 of 147 posts

Re: Canon EF and RF Lenses – All Autofocus Motors

#12
I’ve recently been shooting film with an old EOS camera from the 90s I bought used and it was really nice being able to use the EOS lenses I bought for my DSLR in the 2000s and 2010s. It’s a dying standard now but it’s really impressive it lasted as long as it has, with significant technological innovation on both sides of the lens mount while retaining full compatibility. A brand new EOS EF lens still works with an 80s camera and a new 80D from 2017 can still use the lenses from the 1980s without any adapter. 30 years ain’t bad for a standard!

Re: Canon EF and RF Lenses – All Autofocus Motors

#13
post #4

As a Canon user since the mid-80's, I found this fascinating reading. Edit: Wow - there's a whole collection of Canon lens technology articles there: https://exclusivearchitecture.com/03-technical-articles-CLT-...

Thank you for your feedback! And great that you've found the other chapters - most of them are already complete. Enjoy!

Re: Canon EF and RF Lenses – All Autofocus Motors

#15
post #12

I’ve recently been shooting film with an old EOS camera from the 90s I bought used and it was really nice being able to use the EOS lenses I bought for my DSLR in the 2000s and 2010s. It’s a dying standard now but it’s really impressive it lasted as long as it has, with significant technological innovation on both sides of the lens mount while retaining full compatibility. A brand new EOS EF lens still works with an…

As a Canon owner, Nikon has a much longer back compatibility range. Having autofocus motors and IS in body rather than in lens seems to be a part of their trick.

Re: Canon EF and RF Lenses – All Autofocus Motors

#16
post #12

I’ve recently been shooting film with an old EOS camera from the 90s I bought used and it was really nice being able to use the EOS lenses I bought for my DSLR in the 2000s and 2010s. It’s a dying standard now but it’s really impressive it lasted as long as it has, with significant technological innovation on both sides of the lens mount while retaining full compatibility. A brand new EOS EF lens still works with an…

I must be old -- I vividly remember the Nikon crowd crowing loudly online forums (fredmiranda.com I'm looking at you) about how Canon broke backwards compatibility when they moved from FD to EF. Whereas you could slap an F-mount lens from the 1950s on any Nikon DSLR ever made, no problemo. (Remarkably, this continues to be true!)

Re: Canon EF and RF Lenses – All Autofocus Motors

#17
I was a big fan of USM lenses when I had a Canon, but I had one go bad with fungus or something and for a while had only a 35mm prime which I even used to take pictures of birds. Then I lost my Canon and decided to get a Sony circa 2019 or so because all the reviews I saw for Nikon and Canon said the autofocus sucked on entry-level full frame cameras.

Re: Canon EF and RF Lenses – All Autofocus Motors

#18
post #11

Cannot scroll pages in Firefox.

Sorry to hear that. I tried on my Firefox and it worked. Not sure what might cause that issue.

depending on how the UA's anti-tracking is set up, your cookie pop-up (non-GDPR compliant btw) might prevent the scroll. It's this snippet

    html.disable--interaction.show--consent, html.disable--
    interaction.show--consent body {
      height: auto !important;
      overflow: hidden !important;

    }

Re: Canon EF and RF Lenses – All Autofocus Motors

#19

Canon's lenses are great, but they're really expensive. The camara body itself has the same issue. Sony seems to be the first choice for indie filmmakers and youtubers right now. L-mount and M43 also seem to have great potential as Panasonic supports Phase Detection Autofocus. edit: There is no need to be cynical here. Market figures are cruel. I hope they are all good. Competition is the best. I should also mention…

As the old saying goes, buy the glass, rent the body. Camera bodies change much more quickly than the lenses, so as an indie your money is better spent on the glass. However, shit is so cheap now that you can almost upgrade your gear like your phone. IF you’re a cut ally making money with it, you can pay off your gear in one or two gigs. Unless you’re the “nephew with a 5D asking $500” to shoot that project

Re: Canon EF and RF Lenses – All Autofocus Motors

#20
I've always wanted to know how the various autofocus systems worked. This page is incredible. I wish there was another one with the Nikon autofocus systems since that's what I actually have.

I still have several lenses with autofocus that don't have an AF motor in it at all, the motor is in the camera body instead there's a tiny screw on the lens mount that transfers the motor rotation to the autofocus parts in the lense. This was very slow and noisy though on my cameras.

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