Canon Lens Rumors

A Look at the RF 45mm f/1.2 STM, it seems compact.

Craig
Craig
90 Comments
1 Min Read
A Look at the RF 45mm f1.2 STM, it seems compact.

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We were sent another image of the upcoming RF 45mm f/1.2 STM, a lens that is getting a lot of discussion. There are few bargains in lenses, let's hope this one is. We have been told two European prices, but I can't confirm either. €499 and €599 have been mentioned. Either way, it's going to be a polular lens.

Canon RF 45mm f/1.2 ATM

  • Optical quality on par with the RF EF 50mm f/1.2L USM (Claimed)
  • Digital Focus Breathing Correction
  • 67mm Filter Thread
  • Weight: 346g
  • Price: €499
  • Price: $469

It looks like a nice size.

RF 45mm f/1.2 STM

I see this lens as a follow-up of the 3 decades old EF 50mm f/1.4 USM. Fast lenses aren't for anyone, but for those new shooters that are curious, it's going to be an affordable (Broad stroke, I know) option above the RF 50 f/1.8 STM.

Go to discussion...

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ByCraig
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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.
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90 comments

  2. On par with the EF 50mm f/1.2L USM, huh? So sharp in the middle, not so much in the corners. Too bad, was hoping to replace my hefty Sigma 50mm 1.4, which is sharp corner to corner but heavy enough on its own, let alone with the mount adapter.
  4. How come Canon don't do a RF 50 mm with IS!?
    Very few manufacturers make these. I think Sony has a 50mm f/1.8 OSS and Tamron has a 45mm f/1.8 VC, but that's it. I think the market isn't there.
  5. RF lenses keep reminding me of the FD mount. Mainly size and focal lengths. This reminds of when there were both regular and L series FDn 50mm 1.2 lenses. Or the FL 58mm 1.2. All of these were great lenses too.
  8. How come Canon don't do a RF 50 mm with IS!?
    For non IS lenses I use a shutter speed double the focal length I'm using, so for a non IS 50mm I'd shoot at 1/100sec or faster, it works for me every time. If you can hold your camera more steady then me then you can try using 1/60sec for a 50mm lens.
  10. Very few manufacturers make these. I think Sony has a 50mm f/1.8 OSS and Tamron has a 45mm f/1.8 VC, but that's it. I think the market isn't there.
    First is for APS-C
  12. I’m interested. The 50mm 1.8 always feels just a wee bit too tight to me, and there’s nothing wrong with a faster max aperture. Especially not these days when even “cheap” lenses are sharp wide-open.
  13. ...There are few bargains in lenses, let's hope this one is. ...
    I'll keep my fingers crossed.
    If there aren't any big mechanical or optical flaws and it delivers decently I am sure it'll find its way in my bag.
    Not as a first adopter and not at MRSP, but pretty soon when first discounts are given.

    The last f/1.2 lens in my families possession was my fathers FD 55mm f/1.2 S.S.C. (not the ASPHERICAL) 😆
  14. I love the compact size and if the weight and price specs are correct it'll sell in dozens. The lens looks quite similar to the RF 35/24mm F1.8. I don´t expect it to have a .5 macro feature, so hopefully the AF motor is faster. If the center is sharp and the bokeh renders nicely, it shouldn't be any issue if the corners are a bit softer.

    For me to swap the 50mm VCM it would have to check all boxes, but especially the AF speed. If not, I´m sticking with the VCM.
  15. On par with the EF 50mm f/1.2L USM, huh? So sharp in the middle, not so much in the corners. Too bad, was hoping to replace my hefty Sigma 50mm 1.4, which is sharp corner to corner but heavy enough on its own, let alone with the mount adapter.
    Juicy, but I'm waiting from Chris Frost's word, if it's any good (aka AT LEAST on par with Sigma 50 Art at 1.4), it's probably instant buy
    Guys, please don't expect wonders from this old and simple optical design basis. Canon hasn't found the philosopher's stone in optical designs.
    But they could have found some tweaks to make it better than in the past.
    There is a reason why the Sigma is big and heavy: its formula is complex with many more elements to achieve the corner to corner sharpness.
    And from what I've heard the Sigmas has a busy and not so creamy bokeh.

    I'd be happy if this RF45 will be sharp in the center and delivers a good bokeh.
    If the AF is faster than the one of the 85STM I'd be happy.
  16. For non IS lenses I use a shutter speed double the focal length I'm using, so for a non IS 50mm I'd shoot at 1/100sec or faster, it works for me every time. If you can hold your camera more steady then me then you can try using 1/60sec for a 50mm lens.
    While I tend to use the old rule shutter speed roughly equal focal length I have seen that this doesn't apply to modern digital cameras anymore. These are more in the medium format category when it comes to resolution and I think your rule is much better. And it works for "unsteady days" 😉
  17. If it is on par with the EF 1.2 50 I understand Canon's move: They want to profit from this lens category instead of supporting the 2nd lens market with these old EF systems which sell for ~900 bucks!
  18. Guys, please don't expect wonders from this old and simple optical design basis. Canon hasn't found the philosopher's stone in optical designs.
    [..]
    And from what I've heard the Sigmas has a busy and not so creamy bokeh.
    One can only hope...let's see what's coming with the various reviews and then I'll decide (considering that I want it better or on par with the 50 Art, but I own the 40 Art...so I'm pretty picky about wide open sharpness)

    My interest is pure sharpness, AF absolute accuracy, especially in low light (and decent speed, but accuracy comes first), preferably well controlled flare (I don't mind few small ghosts, but contrast has to remain impeccable), close-up image sharpness not falling apart, and light gathering/transmission, which is something, unfortunately, very rarely tested by the reviewers; I'm not interested in buying this lens just for the sake of being f1.2 if the lens is actually closer to T1.8

    Bokeh quality, frankly I couldn't care less, can be busy, with horrible onion rings and with cats-eye right in the middle of the frame, and I wouldn't even blink
  19. While I tend to use the old rule shutter speed roughly equal focal length I have seen that this doesn't apply to modern digital cameras anymore. ...
    For modern digital cams I tend to modify this old rule to "shutter speed = 1/(2x focal length) s". For APS-C multiply denominator with crop factor.

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