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Canon - EF 40mm f/2.8 STM Standard Lens - Black-Front_Standard

Customer rating

Rating 4.8 out of 5 stars with 260 reviews

  • 20%
98%
would recommend to a friend

Expert rating

Rating 4 out of 5 stars with 8 reviews

Pros

Cons

Customer ratings & reviews

Page 1, showing1-2 of 2 Reviews mentioning:
noise
  • Rating: 4 out of 5 stars

    Pretty Awesome But Falls Short of Perfect

    Posted
    starbuzz
    • Verified PurchaserVerified Purchase
    • My Best Buy Premier Silver Member

    This lens has the amazing new "STM" designation. STM lenses are supposedly made for videographers. I also own the 18-135 STM lens. That lens is good for video; the 40mm not so much. First, the good stuff. The lens is tiny and also fast. Not 1.8 fast, but for its size it's pretty impressive. The overall image quality is pretty phenomenal . . . here are photos for you to check out. http://www.dpreview.com/galleries/2913459161/photos/2289696/40mmstm-179 http://www.dpreview.com/galleries/2913459161/photos/2289695/40mmstm-173 http://www.dpreview.com/galleries/2913459161/photos/2289694/40mmstm-165 http://www.dpreview.com/galleries/2913459161/photos/2289691/40mmstm-128 Now for the bad: 2.8 is pretty fast, but just not fast enough. And the STM (stepper motor) focusing system is ridiculously loud to be useful at all for video. They say it's silent, fast and accurate. Well, it's accurate, but it's not fast and it's not silent. It's probably about (based on feel alone; not real data) as fast (focusing speed) as my 50mm 1.8. It's definitely not USM. And the focusing noise is stupidly loud in video. It's not all that loud when you're just listening; in fact, you might even miss it. But when you play back the video, it's loud. And the noise is just as apparent whether auto-focusing or manually focusing. Picture quality? Awesome. Size? Awesome. Price? Awesome. Focusing mechanism? Not so awesome.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Excellent optics, weird manual focusing

    Posted
    Doubledeej
    • Verified PurchaserVerified Purchase
    • My Best Buy® Member

    I'll keep this brief... This lens has excellent optics. It easily bests my Canon 24-105mm f/4.0 L lens at 40mm, hands down. This lens is much sharper across the entire image. The only down side to this lens is the STM system it uses for focusing. While STM is faster than the conventional motor used in the 50mm f/1.8 lens, it is still noisy enough to be heard on video. In addition, manual focusing only works when the camera supplies power to the lens, so when your camera goes to sleep between shooting images the focus ring doesn't do anything at all. It's easy enough to wake it back up -- just a half-press of the shutter button -- but something to be aware of. At f/2.8 maximum aperture, you won't get as shallow a depth of field on this lens as you will on the 50mm f/1.8 (which is considerably cheaper) but the image quality overall on this lens is significantly better. So if you're most concerned about sharpness, get this lens. If you're after a shallow depth of field and maximum bokeh, the nifty fifty is the better choice.

    I would recommend this to a friend