It's both sharp and gets close. It is not a light lens for its size, but the 70-300 DO is very solidly built. and should be good for about 3 f-stops in handholdability. For some reason, subjects also tend to feel more comfortable when a little lens is pointed at them. As indicated by Canon with the green stripe, Diffractive Optics (DO) elements were utitized in this lens to obtain the small size. The meter doesn't need to be on and the AF system doesn't need to be active; any time for about a minute after the shutter or another camera button was pressed the lens will continue to focus manually.
Weight is also perfect, any less and I wouldn't trust it.Even though there is a fixed rear element, some air pumps in and out of the back of the lens as zoomed.
If you wish to make a printout for personal use, you are granted one-time permission only if you It's essentially a lightweight version of the professional state-of-the-art â LCD display works great to display focus and depth-of-field scales (or alternately focal length or camera shake displays):It work flawlessly on every full-frame and every APS-C DSLR. The retailers I recommend below are the ones I trust for my purchases. Some like it and call it dreamy - I personally don't like it. In MF mode the lens focuses anytime the ring is moved and the camera is awake. If the lens does this, the image "breathes" by growing and contracting slightly as the dialog goes back and forth.The 70-300 has typical distortion: some barrel at the 70mm end and pincushion at the 300mm end.Many cameras can be set to correct for this, if not, you can use these correction factors in Half the lens is the mechanical zoom ring; grab and zoom the usual way. There is no humming or sliding; the lens just focuses faster than I can blink.It's much faster than anything else other than the almost as fast It's because this lens has a completely different AF system than other lenses.
With the automatic lens correction of today's full-frame digital cameras, this lens works far better today than it ever did on 35mm film — and for about $75 used, it's the steal of the century.. I'd also get it at Amazon, at B&H or at Crutchfield.This ad-free website's biggest source of support is when you use those or any of these links to my personally-approved sources when you get anything, regardless of the country in which you live. I never felt it from my eyepiece, though.I've greatly exaggerated the falloff by shooting a gray field and placing these on a gray background:I can stack several standard 67mm filters with no problems; 67mm is a generous size for this lens.Go ahead and use your standard rotating polarizer and This is the very worst I could cause; every other frame had none, and this is with a filter on the front of the lens:There are no color fringes, at least as shot with the lens profile as I do here, which correct for any that may be there.A first on a mainline consumer lens, a black-and-white LCD replaces the focus and depth-of-field scales:It's more legible than the usual scales, and a first for a consumer zoom is that the depth-of-field markings move as you zoom. It also works flawlessly on 35mm EOS cameras, like my It works very well with every Canon EOS camera, even the very first 35mm EOS SLRs introduced in 1987. The Canon EF 70-300mm f/4.5-5.6 DO IS USM Lens circular aperture makes out of focus points of light very round for a 6-blade aperture,
All rights reserved. I would have designed it to magically correct the speed of the manual focus drive as you zoom, while it instead behaves just like the focus ring in a conventional zoom.Focus breathing is the image changing size as focused in and out.