Đánh giá lens canon 24 85mm năm 2024
At the lens fast, quiet, internal focus. When zooming, the front lens does not rotate. The Canon 24-85mm F / 3.5-4.5 USM has a focus mode switch 'AF / MF', in manual focus mode the ring rotates 90 degrees. The focus ring is not rubberized, but it’s nice to drive it. The lens supports continuous manual focus mode. There is also a focus distance scale and infrared shift marks for 24, 28, 50, 85mm. MDF is 50 cm. At 85 mm focal length you can get a "macro" with an increase of 1: 6.3. Optical design of the Canon EF 24-85mm f / 3.5-4.5 USM lens. Green indicates an aspherical element. Photo taken from the Canon website. Canon 24-85mm f / 3.5-4.5 USM is made in Japan, has a metal mount and a rubberized zoom ring. The diameter of the front filter is 67mm, you can buy the native Hood EW-73II hood for the lens. With prolonged use, my copy has a little backlash in the zoom mechanism, while the lens trunk may spontaneously lengthen. The number of aperture blades is 6 pieces. The aperture can be closed down to F / 22 @ 24mm, F / 32 @ 85mm. Sample Photos Canon 24-85mm F / 3.5-4.5 USM creates the expected image: 24mm distortion, good sharpness in the center of the frame, good contrast, slight fear of backlight, sometimes strong HA. On covered apertures, it is sharp across the entire field of the frame on my cropped Canon 350D. The parameters of the photo in the review: All shot on Canon EOS 350D using protective filter Sunpak 67mm UV made in Japan. On-camera JPEG L, high quality. Noise reduction at slow shutter speeds was turned off. Parameters: contrast correction - 0, sharpness - 0, saturation - 0, tone color - 0. Used white balance: 'Auto' and 'Cloudy'. The size of the photos has been reduced to 1350 px by 900 px. My experience The dimensions of the lens are really small. When zooming, the rear lens works like a pump, which can affect the excess dust inside the camera. Of course, the Canon 24-85mm F / 3.5-4.5 USM does not create some kind of super image quality. But still, the lens can be a very, very cheap alternative to a full-time camera lens. It is a pity, now the new lens is almost never found on sale. I liked the Canon 24-85mm F / 3.5-4.5 USM more than its longer telephoto brother Canon Zoom Lens EF 28-105 mm 1: 3.5-4.5 USM. Option in gray frame Lens prices in popular stores can look at this link. Comments on this post do not require registration. Anyone can leave a comment. Many different photographic equipment can be found on AliExpress. Conclusions Canon Zoom Lens EF 24-85mm 1: 3.5-4.5 Ultrasonic - attracts with its low price per used lens option (about $ 150). For myself, I noted the internal fast focusing, slightly improved aperture and small lens sizes. In general, it's a good budget zoom. Material prepared Arkady Shapoval. Training/Consultations | Youtube | Facebook | Instagram | Twitter | Telegram Corner sharpness is always weak. Sides/edges at wide/medium focal length are less good than expected until lens is stopped well down, with softness and some purple fringing. As tested on my 6D, this is a good but compromised lens. Compared with the also somewhat compromised but really very good 28-105ii, corner, edge and even side of frame performance is weaker than expected at wide and medium focal lengths, but when stopped well down, it is only the extreme corners of the full frame where the problem is observable. My impression is that I would prefer to shoot this lens at 24mm than the 20-35 3.5-4.5, which isn't a very strong lens. At 85mm I found this better than its reputation. Shooting near infinity, it is quite good across the frame even at its maximum aperture of 4.5. Interestingly, central sharpness at wide apertures is slightly better than the 28-105. It really shows that this lens was designed for APS cameras. Several years ago I had one of these in silver, before I had full frame digital but after I stopped shooting film. It was very good indeed on my 40D. I had wanted to try one ever since getting my 6D. This black example came in a package with a 10D. They usually sell on ebay UK for at least as much as they did when I last owned one, nine years ago. (100GBP). For me this lens complements my 28-105 and I will keep both. Colour balance is the same as my 28-105. Distortion is quite high at 24mm...but so is the 28-105 at 28mm. Vignetting is high at 24/3.5. Overall good for scenic photography whenever you can stop it down. Less good for eg street photography at wide apertures, where you will want better sharpness distribution across the frame than this lens can deliver. Tested sample is in good order and seems well centred. NB the site seems not to be showing the entire contents of the Pros/Cons sections at the top of my previous reviews, so I'm moving towards shortening them! reviewed January 20th, 2021
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