Here is a new Canon RF 600mm f/11 Lens review. The RF 600mm f/11 and RF 800mm f/11 made quite a splash when they were announced. Initially seen with skepticism, they are now getting many positive reviews.
This Canon RF 600mm f/11 review comes from SLR Lounge, the Canon RF 600mm f/11 Lens review says the “lens packs a punch despite its weight […] and delivered some incredible images”. From their conclusion:
1) The lens has a tendency to front and back focus, and 2) the f/11 comes with limitations, meaning you’ll want to pair this lens with a solid camera body, like an EOS R5 or R6 or better. The EOS R, in my opinion, was the baseline minimum that you would want. I would also remind you that this is a 600mm fixed focal length lens, a specialist lens, so you really have limited compositional control beyond simply moving closer or farther away on your own two feet, and you may be limited, depending on the kind of scenes/locations that you’re shooting in.
If you’re thinking to yourself, “Well, I would really love to have this lens to go traveling with,” then you might reconsider. For those of you that like to travel and you still want telephoto capability, I would recommend something like a 70-200mm, or a 100-300mm lens, where you still have range. If you’re shooting birds or animals, where distance is a common issue, then the 600mm lens is going to be perfect for you.
Here is another good Canon RF 600mm f/11 review. The RF 600mm f/11 and RF 800mm f/11 made quite a splash when they were announced. Initially seen with skepticism, they are now getting a lot of positive feedback.
After having reviewed the RF 800mm f/11 lens, Christopher Frost dedicated his attention to the RF 600mm f/11.
Canon wanted to release lenses similar to the RF 800mm and 600mm f/11 also for the EF mount, but auto-focus was an issue:
In the days of manual focus film SLR cameras, there were many lenses such as the 500mm F8 reflex (mirror lens). However, when the viewfinder screen for focusing is split, it is difficult to see because the open value is as dark as F8, and in reality it was difficult to focus. This lens has a darker F11 opening value, but it can be said that it was born because of the EOS R, which can use high-speed and high-precision AF even at such an opening value.
Even more interesting is a statement by one of the developers clearly that the RF 800mm and RF 600mm f/11 are just the first of a series. The first lens to follow appears to be a RF 400mm f/8:
[…] Of course, 400mm is included when it comes to super-telephoto lenses, but first of all, 600mm and 800mm have a greater impact, and I think it’s a great pleasure to shoot things that I couldn’t shoot before, so the first one is in this lineup. Did. The 400mm will be as small as the 600mm and 800mm, and I think it will be an attractive lens. I would like to think positively whether it is better to make a series depending on how much the 600mm and 800mm echoes are.
In an interview, Canon engineers tell how it came Canon made the RF 800mm f/11 and RF 600mm f/11 lenses. And what inspired them.
In an interview with DC Watch, Canon engineers tell the reasons and challenges in designing the RF 800mm f/11 and RF 600mm f/11 lenses. It seems, a boyhood experience of one of the engineers was one of the reasons (machine translated):
Iezuka: I’m sorry about my boyhood story. At that time, I wanted to take a picture of a wild bird, Little Egret, but I couldn’t buy a super-telephoto lens because it was too expensive. I tried to make a telephoto lens with a close-up lens with a focal length of 400 mm, but it didn’t look good, and I wondered why it didn’t look so good.
I knew that there were many people who gave up what they wanted to shoot and the expressions they wanted to shoot because they couldn’t buy a super-telephoto lens and couldn’t carry it because it was big and heavy.
Canon already made a similar lens in 1960, the R 1000mm f/11:
Looking back, Canon’s first SLR camera system, the R mount (1959-), also had a “slender” super-telephoto lens like the 600mm / 800mm F11. The optical system is as simple as a telescope, the focusing is bellows, and the weight is as light as 2 kg.
Why f/11?
Iezuka: Since the EOS R system can measure distances up to the maximum aperture of F22, I thought that the F value of the lens alone would be F11, considering the installation of a 2x extender. With F8, the lens becomes thicker, and with F16, it exceeds F22 when the 2x extender is attached. Around this time, the idea of ”Why don’t you eliminate the aperture unit for F11?”
I understood that there is a need to reduce the shutter speed further from F11 when considering panning at super telephoto, but control of the depth of field is less important at super telephoto, and it is low. The aperture unit was not installed because it leads to cost reduction and weight reduction.
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