Canon has released firmware updates to 5 RF mount telephoto lenses.
Available Updates
- RF100-300mm F2.8 L IS USM Firmware Version 1.0.6
- RF400mm F2.8 L IS USM Firmware Version 1.0.6
- RF600mm F4 L IS USM Firmware Version 1.0.6
- RF800mm F5.6 L IS USM Firmware Version 1.0.4
- RF1200mm F8 L IS USM Firmware Version 1.0.4
Firmware Changes
- Even with fast zoom operations, it is now easier to focus. (RF 100-300 f/2.8L IS USM Only)
- In the electronic shutter system, the control of the panning assist after the second shot of continuous shooting has been improved.
Via: asobinet
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It's a single EF 600/4L IS III with a 2x TC permanently attached, plus the flange adapter.
The 800/5.6 is the same but based on the EF 400/2.8L IS III instead.
It saddens me to see a company of Canon's (apparently former) caliber resort to this sort of hackery.
Hackery? firstly, the EF 400/600 are a new design, they were released in 2018, in large aperture lenses that is considered pretty current tech. Both are the same weight as the Sony counterparts. And adding a flange to adapt to the new mirrorless has little to no adverse effect when it comes to telephoto lenses, so a redesign of these already resent designed lenses is sorta pointless. On the other hand, the wide angle lenses benefit from a shorter flange to the sensor and Canon did redesign all the non telephoto to take advantage of this.
claiming its "hackery" is just a ignorant uneducated observation and if you don't like it move to a non-hackery company. stay sad for all anyone cares.
The sharpness and detail and fast AF of my RF 600 blows me away every day I use it, and the best part is when someone asks to hold and is shocked how light it is compared to size has to be some pretty sweet hackery if you ask me.
Or are you just being pedantic? It seemed pretty clear that he meant the 600/4 III paired with the TC/adapter.
And, he similarly makes claims about the IQ of the RF 800mm f/5.6 https://www.the-digital-picture.com/Reviews/Canon-RF-800mm-F5-6-L-IS-USM-Lens.aspx, and shows it's worse than the EF 400mm f/2.8 II + 2xTC https://www.the-digital-picture.com...LensComp=741&CameraComp=0&FLIComp=0&APIComp=0. They are nowhere nearly as sharp as your native RF 600mm f/4.
Sony is just as bad, frankly, although at least they have newly designed lenses for their mount. But the lack of options for wildlife shooters with Sony is just as embarrassing. Clearly these two are seeing this new competitive relationship as the old Nikon vs. Canon of the 20th century, ignoring Nikon altogether. And yet Nikon is the only one who's actually putting effort into new, serious wildlife options for their mount. The built-in TCs for the large primes, combined with the PFs for the mid-tier, which retain professional quality, and they've even got the zooms to round out the lineup. It's not even close, frankly, and Canon should be ashamed of the fact that they've lost this much ground and respect from the wildlife community. Most wildlife shooters are going with Nikon if starting today, and that's going to catch up with Canon in the long run for this genre as people become invested in the system with these larger lens purchases.
Just my two cents. I'm clearly frustrated with Canon's choices here and gave up waiting around for them to get it together. But I'm hopeful they'll eventually catch up, as they usually do at their own pace. If you like slow zooms then Canon is your choice right now, which is great for those starting out. Otherwise you're paying $10k for stop gaps with limited options and quality.
The RF 100-300/2.8 is the first ‘big white’ designed from the ground up for RF, and IMO it’s an excellent lens. Given the lack of optical Improvement over the EF 600/4 II (and the fact that I can carry and handhold it, making the weight/balance improvements less enticing), I will continue using the EF MkII until Canon replaces it with a true RF version. Meanwhile, it’s an excellent lens that doesn’t disappoint.
You’re right that Canon has been focusing their long lens development on entry-level users. Seems smart – the RF 100-400, 600/11 and 800/11 are very good lenses for their price (especially the 100-400, which punches well above its price and weight class, optically), and are offerings that remain unmatched by other manufacturers.
They were only correcting their typo/mistake which I think is fair.