Two more lenses coming with the 3 hydrids or soon after

It's curious that Canon didn't retro fit the EF 800mm f5.6 because it was a sharper and far superior lens optically than the EF400mm f2.8 with a dubious custom 2x teleconverter and integrated RF adapter version that was launched. However, it's AF and diaphragm limit the fps to 8 fps on the newer cameras. It's IS is of an old and legacy design too.
It points to issues around the amount of re-engineering requied to convert the IS, aperture and AF systems of the legacy lens, availability (they might not have held a lot of these in stock and didn't want to manufacture more) and the fact that Canon could easily re-engineer the bottom end of their large over supply of EF 400mm f2.8 mk III's and make 3 RF lenses with minimal outlay and high profit margins.
I think Canon wanted a "fast to market, low cost" solution and felt that this approach would be sharp enough. it also means that any future zoom variant only has this cobbled 400mm + TC to match resolution wise. It will never be measured against the EF predecessor.

It's barmy to think that a EF 400mm f2.8 LIS II with a 2x TC will outperform the current RF 800mm f5.6 in nearly every resolution metric. In fact this combo is only eclipsed by the native legacy EF 800mm f5.6 LIS.
a) Size and weight of the EF800mm 5.6 is a no go these days.
b) the RF 800mm is excellent for closeup work. Using 800mm to shoot the elephant at the horizon generates blurry pictures no matter the glass....
 
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Suplico a los cielos que el peculiar EF 24-70mm f/4 de Canon llegue para el sistema RF. Para los que nos gusta retratar lo que nos encontramos por la naturaleza, era muy interesante esa amplificación que tenía de 0\'7x. Y con el punto dulce en su parte más angular.
 
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a) Size and weight of the EF800mm 5.6 is a no go these days.
b) the RF 800mm is excellent for closeup work. Using 800mm to shoot the elephant at the horizon generates blurry pictures no matter the glass....
Hmm...canon could have re-used the old lens optical foruma and replaced the outer casing and bottom end of the lens. Cobbling a EF400mm f2.8 mkIII and shoving a 2xTc on it and trying to trick everyone that this was a new and fresh design is nothing more than a con regardless of how much lighter it is. After all this is a £18K lens in the uk and it's little more than a £13K EF/RF 400mm f2.8 III with a £5K teleconverter.
Shame on you Canon...

The old EF 800mm f5.6 (which is massively shaper than is cobbled RF version) weighs 4500g, the cobbled RF weighs 3140g, sure it's lighter but it's not massively and cerainly not worth the £££ increase and the sevear IQ drop. I intentianally bought a EF 400mm f2.8 II L over the lighter EF/RF 400mm f2.8 because of the mkII's superior IQ...which is less of a difference than between the old EF 800mm f5.6 LIS and this cobbled RF version.

Your latter comment is complety mis-informed....I regularly use a 800mm f5/6 and it's pin sharp. I have friends who regularly use their EF600mm f4 LIs II with a 1.4x TC and that's pin sharp too.
 
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Hmm...canon could have re-used the old lens optical foruma and replaced the outer casing and bottom end of the lens. Cobbling a EF400mm f2.8 mkIII and shoving a 2xTc on it and trying to trick everyone that this was a new and fresh design is nothing more than a con regardless of how much lighter it is.
Keep in mind that the EF400 and 600 where announced 10 minutes before the RF system and have features that Canon still claims to be RF exclusive.
I’m not convinced they were designed as purely EF, but Canon released them as EF to get the most return on investment and cynically expected people to buy both the EFIII first and the RF version later when the R5 and R3 came available.
 
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I mean... It's optically better than the 28-70 F2 @ F2.8 but hey... I'm no serious photographer like him
He certainly has very serious RF lenses we don't know about that are better.
:D

Thanks to people like him thinking that it's a crappy lens I was able to pay it 180 new on B&H.
 
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The 28 mm f2.8 pancake lens is an excellent lens and I use it with my R5 mk2. Such a small lens does look bit odd on a R3 body, but in terms of performance for landscapes it a very good lens. An easy lens to place into your pocket in the last minute and inexpensive enough to replace if it is damaged.
 
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Hi everybody, I'm a long time reader, first time poster, so please be gentle with me

I've fallen in love with some of Sigmas offerings, specifically the 14mm f1.4, the 28-45 f1.8, the 35mm f1.2 and the 105mm f1.4. I'd love to see Canon offer equivalent options, or charge Sigma a licence fee to produce them for the RF mount, but I can't see either happening in a hurry. (Maybe the 35mm f1.2 from Canon is on the board, and there's the 135mm f1.8).

The 200-400 F4 sounds great for a forthcoming trip to the Falklands, hopefully it will be released soon enough that I can rent one for a month or so.

Shane.
 
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Hi everybody, I'm a long time reader, first time poster, so please be gentle with me

I've fallen in love with some of Sigmas offerings, specifically the 14mm f1.4, the 28-45 f1.8, the 35mm f1.2 and the 105mm f1.4. I'd love to see Canon offer equivalent options, or charge Sigma a licence fee to produce them for the RF mount, but I can't see either happening in a hurry. (Maybe the 35mm f1.2 from Canon is on the board, and there's the 135mm f1.8).

The 200-400 F4 sounds great for a forthcoming trip to the Falklands, hopefully it will be released soon enough that I can rent one for a month or so.

Shane.
Hi Shane, welcome. We're "quite" friendly here...

Sigma lenses are really strong optically, great build quality these days too. Although they don't tend to be as robust as OEM offerings. They tend to come in quite heavy compared to a like for like comparision to OEM offerings. The Sigma's AF is usally a weak spot compared to OEM offerings as are their Image Stabilisers. However, they are substantially cheaper than Canon offerings. Currently Canon are only allowing 3rd party lens manufaturers to make lenses on the RF format that are either manual focus or RF-s / 1.6x crop format. canon have stated manytimes that they will only allow permit non-competing lens products on the RF mount and will actively pursue cease and desist orders on any lens that directly competes with any of the Canon lens portfolio products.

So I think that these Sigma offerings are highly unlikely to happen for quite a few years. Another lens that I greatly admire and envy is the Tamron 35-150mm f2-2.8....that's a one lens and your are done wedding / portrait kit.

The RF 35mm f1.2 L is a sore subject here for good reasons.

The EF 200-400 is a very versatile lens. It's a great "one Stop shop" appraoch to focal length. It's only issue is that it's quite heavy and combersome compared to say a EF 300mm f2.8 IIL (and a pair of TC's) or a EF 400mm f4 DO II (with an optional 1.4x TC).
 
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The RF design for the 800/5.6 is quite different from the EF 800/5.6, since the EF version was designed as an 800/5.6 lens whereas the RF is actually a 400/2.8 with a 2x TC included (I drew a magenta box around it).

EF 800/5.6
View attachment 220417

RF 800/5.6
View attachment 220416

RF 400/2.8
View attachment 220415
Thanks for marshalling all the diagrams and it explains your point quite well.

Looking at this I'm just sad they didn't make it so you could switch to 400/2.8 so that built-in TC could drop out like this, maybe allowing also a 1.4x to swing into place (I envision a turret with two TC's and an empty tube that prevents internal reflections).

1729936760656.png
 
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