Last Updated on 01/31/2020 by Mark Beckenbach
Another potential RF lens has been talked about, and if it’s real, you will need guns of steel to be able to use the Canon RF 135mm f1.4.
As we all know, Canon has come out with all guns blazing when it comes to their RF mount lenses, and it doesn’t look like they will be running out of ammo anytime soon. According to a new report, a Canon RF 135mm f1.4 lens could be in the works, and while this makes us salivate, our biceps are already starting to weep. Join us after the break for some juicy details about this potential lens.
According to a recent post on Canon Rumors, The guys and gals at the big C’s headquarters have filed a patent for a 135mm f1.4 RF mount lens. The news, initially reported on by Canon News, will no doubt bring a tear to the eyes of portrait photographers everywhere. But can you imagine how massive a lens like a Canon RF 135mm f1.4 lens would be? I’m tempted to switch back to Canon just so I can get the great glass and see bicep and tricep gains at the same time.Â

Canon has already made the RF platform a dream for portrait photographers thanks to their selection of glass like the RF 50mm f1.2, the RF 85mm f1.2, and the recently released 70-200mm f2.8. The 135mm focal range is a tried and true classic for portrait shooters, so it would fit in well with the current selection of glass and become one of the most-owned lenses on the platform. One would have to consider just how humongous this lens would be, though. Here are the reported specs of the lens thus far:
- Focal length: 131.00mm
- F-Number: 1.41
- Half angle of view: 9.38°
- Image height: 21.64mm
- Total lens length: 182.28mm (7.1-inches)
- BF: 13.87mm

Look at the size of the 85mm 1.2: it’s already beastly to the point that it makes the Canon EOS R look like a lens cap. A Canon RF 135mm f1.4 would just be comically huge. Then, consider weight. The Canon EOS R and the RP would be incredibly front-heavy, which means hand holding a lens like this would be hard for long periods of time. Heck, just even keeping it stabilized (even with lens IS) would be tricky. As for pricing, let’s not even think about that just yet, it’s too depressing and would ruin the overall great news about the lens.
With all this being said, though, we hope the stories about the lens are real. Can you just imagine how incredible portraits would look? Canon, get the lens out and give us some new camera bodies with IBIS that can help stabilize these giant lenses even more, and then you’ll really make people look your way.