Here is the Canon RF 14-35mm f/4L IS USM

Canon Rumors Guy

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A poor-quality image of the upcoming Canon RF 14-35mm f/4L IS USM has leaked ahead of the official announcement.
It sounds like we’re going to get an official announcement next week, and I wouldn’t be surprised to see the Canon EOS R3 get an official announcement alongside it.
Canon RF 14-35mm f/4L IS USM Specifications:

16 elements in 12 grounds
Minimum focusing distance of 0.2m/7.86″
Maximum shooting magnification of 0.15x (at 14mm) / 0.38x (at 35mm)
9 aperture blades
77mm filter thread sie
Width 84.1mm/3.31″ x Length 99.8mm/3.92″
540g / 1.19lbs

 


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With the RF 15-35 f/2.8 IS and the 14-35 f/4 IS, I wonder how Canon will slot in a 14mm prime. I hope Canon goes like sigma with a 14mm f/1.8 rather than like its overpriced EF 14mm f/2.8. And hopefully, it'll be designed for minimal coma.
Sony also has an excellent 14mm f/1.8. Lighter than the sigma too. I would expect Canon to match the brightness on their 14mm, given their current RF lineup
 
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Sep 17, 2014
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Canon has many options. A 14 prime can be 2.8 and very small and affordable. Or it can have a bright aperture.
With the RF 15-35 f/2.8 IS and the 14-35 f/4 IS, I wonder how Canon will slot in a 14mm prime. I hope Canon goes like sigma with a 14mm f/1.8 rather than like its overpriced EF 14mm f/2.8. And hopefully, it'll be designed for minimal coma.
 
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I wonder how Canon will slot in a 14mm prime. I hope Canon goes like sigma with a 14mm f/1.8
I believe Canon has three options:
1. go wider just like with the UWA zooms. I imagine an RF 12mm
2. keep 14mm, but give it more light like F2 at least
3. Design a completely new and super light 14mm F2.8.

With the zooms getting wider and the RF 16mm F2.8. about to come, I think option No 1 makes a lot of sense. Give it F2 and it would be a killer astro lense
 
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john1970

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I hope that your prediction of the official R3 announcement at the same time is correct. I am looking forward to knowing a few more specifications: 1) Sensor resolution? 2) Can electronic shutter (ES) be used at speeds other than 30 fps? 3) Flash sync speed with ES? 4) Details on the focusing system? 5) Is spot metering linked to AF point?
 
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H. Jones

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That size is... really compelling. If it's $1200-1300, it may not be the worst idea for me to sell my EF 16-35 F/4 and pick this up for the $500 price difference. I really don't use my ultra ultrawide enough to really warrant the $1500 extra over selling my EF F/4.

Honestly may just depend on the price of the R3. If the R3 is cheaper than expected, that's extra money towards a new lens.
 
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H. Jones

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The RF 24-105 is 700g, the RF15-35 is 840g, so I don't expect much less (as 615g or lower)...
Gotta remember the 24-105 has to handle 105mm F/4, which is a bigger piece of glass and means it's hiding a whole zooming barrel inside. I'm sure if this lens is smaller than the 24-105 and has less mechanisms / smaller glass to it, Canon can probably confidently make this lighter than the 24-105.
 
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