Canon Lens Rumors

The Canon RF 300mm f/2.8L IS USM appears to be getting closer [CR3]

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One of the most requested super telephoto lenses for the RF system is a Canon RF 300mm f/2.8L IS USM. The Canon EF 300mm f/2.8L IS II USM has been discontinued for quite some time.

We have been told that Canon has prototypes out in the wild and that the lens is a ground-up redesign of the focal length.

The source claims that weight has been reduced by almost 40% and  the length by as much as 30% over it’s EF predecessor, though they didn’t have the exact dimensions and weight to give us.

Weight savings in lenses is something Canon has been pouring a ton of R&D into, and this revelation shouldn’t shock us.

We can reportedly expect to see the Canon RF 300mm f/2.8L IS USM some time in the first half of 2023.

Keep a close eye on the sidelines of the 2022 World Cup in Qatar in November.

More to come…

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neuroanatomist

I post too Much on Here!!
CR Pro
Jul 21, 2010
27,532
7,278
Excellent news for me, especially with a CR3 rating.

I am definitely in the market for a 300/2.8. Literally a few minutes ago I looked them up on MPB and KEH. I'll be pre-ordering the RF version.
 
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whothafunk

EOS RP
Apr 17, 2013
270
27
Would prefer 120-300 2.8 or something similar. Either way, unfortunately going to cost a fortune.
 
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swkitt

EOS M50
Dec 8, 2015
39
29
Hell that would be only 1.5kg! So I guess I'm not ordering this 100-500 yet!
 
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Hector1970

EOS R
CR Pro
Mar 22, 2012
1,459
958
This is what I hate about Canon. I have the Ef 300mm 2.8 II. It’s a really good lens. I’d go so far as to say it’s the best Canon lens. Very happy to use it with an R5. No intention of buying an RF version (expecting same lens with a permanent adapter attached). Then Canon come along with an RF version that’s shorter and lighter. Please please please let the image quality be worse or I’ll be tempted by it. How could it be lighter and shorter. It was already reasonably light.
 
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EOS

EOS
Apr 29, 2022
20
25
Would love to see an RF 300mm f/2.8 designed from the ground up to take advantage of mirrorless in terms of weight and size (vs. simply bolting an RF mount onto existing EF designs and jacking up the price, like the RF 400 f/2.8 and RF 600 f/4).
 
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Bob Howland

EOS R
CR Pro
Mar 25, 2012
820
483
Would prefer 120-300 2.8 or something similar. Either way, unfortunately going to cost a fortune.
I would prefer a 200-500 f/4 or better yet a 200-500 f/2.8-4. I own an EF 300 f/2.8 L IS and found that I was constantly installing and removing teleconverters. With or without them, the lens is superbly sharp. I also own a Sigma 150-600 Sport which I use more than the 300.
 
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mbike999

EOS M6 Mark II
Jan 18, 2018
54
109
Bay Area
I would prefer a 200-500 f/4 or better yet a 200-500 f/2.8-4. I own an EF 300 f/2.8 L IS and found that I was constantly installing and removing teleconverters. With or without them, the lens is superbly sharp. I also own a Sigma 150-600 Sport which I use more than the 300.
I have to imagine that type of lens is coming eventually. The 200-400/4 is almost 10 years old.
 

Blue Zurich

The artist formerly known as slclick
Jan 22, 2022
202
321
Excellent news for me, especially with a CR3 rating.

I am definitely in the market for a 300/2.8. Literally a few minutes ago I looked them up on MPB and KEH. I'll be pre-ordering the RF version.
Since you mentioned this yesterday and voila it shows up today with a CR3, I will be compiling a lens list for you to chime in with ;)
 
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Reactions: 1 user
Aug 7, 2018
458
406
It will be interesting to see how well it will work with teleconverters. The exciting part is that the optical formula is new unlike the the formulas of the really long lenses.
 
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Juangrande

EOS RP
Mar 6, 2017
237
308
I would prefer a 200-500 f/4 or better yet a 200-500 f/2.8-4. I own an EF 300 f/2.8 L IS and found that I was constantly installing and removing teleconverters. With or without them, the lens is superbly sharp. I also own a Sigma 150-600 Sport which I use more than the 300.
I personally prefer primes lense over zooms every time regardless of the inconvenience.
 
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mxwphoto

R6 and be there
Jun 20, 2013
72
114
This is what I hate about Canon. I have the Ef 300mm 2.8 II. It’s a really good lens. I’d go so far as to say it’s the best Canon lens. Very happy to use it with an R5. No intention of buying an RF version (expecting same lens with a permanent adapter attached). Then Canon come along with an RF version that’s shorter and lighter. Please please please let the image quality be worse or I’ll be tempted by it. How could it be lighter and shorter. It was already reasonably light.
The lens being shorter part, who knows as there is physics limitations unless if you go DO or multiple crazy aspherical light yoga elements. But the weight reduction has been expected ever since 2018 when the 400 2.8 iii came out. Image quality will likely be amazing, but similiar to the mk ii as it is already near perfection; perhaps better corners. Coordinated IS will likely boost things up to 7 stops of shake reduction.

I for one will be looking forward to the used mk ii price drop once the RF comes out.
 

Steve Balcombe

Too much gear
Aug 1, 2014
264
188
This is great news - the EF 300/2.8L IS II was probably the best lens I've ever owned. But "best" wasn't best for me - I found myself using it with the 2x most of the time and eventually switched to a 500 - and that's what I'm really waiting for. A ground-up redesign of the 500/4L IS II would be very exciting. If it was DO and had a built in 1.4x... but now I'm drifting off into fantasy...
 
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Maximilian

The dark side - I've been there
CR Pro
Nov 7, 2013
4,074
4,539
Germany
... weight has been reduced by almost 40% and the length by as much as 30% over it’s EF predecessor
...
Weight savings in lenses is something Canon has been pouring a ton of R&D into, and this revelation shouldn’t shock us.
But I'll guess that the price increase of over 40% will shock us, won't it? ;)
But I really hope that they can also do something in IQ over the excellent EF predecessor.
 
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Maximilian

The dark side - I've been there
CR Pro
Nov 7, 2013
4,074
4,539
Germany
Hell that would be only 1.5kg! So I guess I'm not ordering this 100-500 yet!
Go, order the RF100 - 500!
Otherwise get prepared for a price of about 7k+x $.
So you should be able to get at least 2 RF100 - 500 for its price ;)
And it is still at least one year to go... and think about the pics you'll miss until then :p
 
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