Canon EF 300mm f/4L IS USM Telephoto Lens for Canon SLR Cameras Review

Average Reviews:

(More customer reviews)I got this lens for shooting architecture from a distance--an unsual application. I've also found myself using it to shoot kids soccer games. It's super sharp and very fast focusing. I haven't done formal tests at all apertures, but images appear vivid and contrasty at a range of settings. Online reviews rank this lens very highly and my own experience supports those findings.
The Image Stabilization seems to work very well, although be sure to turn it off if you're using a tripod--I've found that it can reduce image quality if you forget to turn it off in that application.
For shots where you'll be standing around a lot with the lens to your eye, ready for a shot, it gets kind of heavy to carry. If you're shooting sports, you might want to consider a monopod. For other applications, its weight is low enough not to be too big of a problem.
It comes with a canvas-like case that includes a loop you can use to attach it to your belt. I've found this works pretty well out in the field, particularly when combined with a photo-vest. The case also can be carried with a neck strap, but this gets in the way of your camera strap and is also thin, so it kind of cuts into your shoulder.
As I write this, the Amazon site has a link for 58mm filters for this lens. It takes 77mm filters.

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Bring your subjects closer while shooting sports or wildlife with the Canon EF 300mm f/4L telephoto lens. The lens is equipped with Image Stabilizer (IS) technology, which compensates for camera shake by providing the equivalent effect of a shutter speed two stops faster. The camera provides two IS modes: Stabilizer 1, the same mode featured on the EF 75-300mm lens, and Stabilizer 2, which steadies the image during horizontal or vertical panning. The lens is also half the weight of the 300mm f/2.8L IS, with a close focus distance of 4.9 feet. And like all of Canon?s fixed focal length L-series lenses above 135mm, it?s compatible with Canon's EF 1.4x II and 2x II Extenders.
Specifications
Focal length: 300mm
Maximum aperture: f/4L
Lens construction: 15 elements in 11 groups
Angle of view: 8 degrees @ 15 feet
Focus adjustment: Rear focusing system with USM
Closest focusing distance: 4.9 feet
Filter size: 77mm
Dimensions: 3.7 inches in diameter and 8.7 inches long
Weight: 2.6 pounds
Warranty: 1 year

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Olympus ED 14-150mm f/4.0-5.6 micro Four Thirds Lens for Olympus and Panasonic Micro Four Third Interchangeable Lens Digital Camera Review

Average Reviews:

(More customer reviews)1. I recently purchased this lens for my EP-1 and will put forth some observations about this lens.
* Size: As most reviews of this lens have noted, it's obviously longer than the 14-42mm Olympus kit lens. However, the "how much longer" is only truly appreciated when you mount it on you camera; when you do so, you'll think silently "... hum, this is a bit longer than I thought it would be."But depending on your expectations / purposes for this lens, it may or may not matter. For myself, I knew ahead of time that this lens was going to be overtly longer than the kit lens and thus I was prepared for it. Furthermore, since the 14-42mm kit lens, although smaller, is not a very compact lens like the 17mm pancake, the EP-1 with the 14-42mm is never going to be a combo where I'm going to be able to put it in my large pockets etc... Thus, I would need to carry the EP-1 + 14-42mm in a case etc... If that's the case (and it is with me), having the EP-1 with the 14-150mm is no big deal because it's still compact enough to still fit in my case and it's certainly light weight.
* Build Quality: basically... decent enough--> translation--> overt plastics.Olympus is trying to keep costs down so as to attract as many folks into the micro 4/3 camp. However at some point, please--> make some lens that don't feel like a semi-toy. With that being said, the optics are good and in the end--> it's all about the pictures.
* Focus: One of the biggest reasons I transitioned to this lens from the kit 14-42mm was the annoying way the kit lens had to refocus each time and the in / out movements it had to go through. Everytime I would use the kit lens, it made me feel like I was using some first generation autofocus lens from the 1980s. This lens, although not lightening fast, definitely focuses smoother and quicker than the 14-42mm, which may not be saying much to some folks, but bottomline, it focuses quicker, quieter and "better" for whatever that means.If you have the new 9-18mm micro 4/3 lens, it focuses like that lens.
* Image quality: very good. As with all of the Olympus lens thus far (in the micro 4/3 line), this lens gives clear, sharp, nicely rendered color images etc... I won't and can't go into a technical analysis of the lens, but in general, when viewing the images taken with the camera, most will be very happy with the results. No surprises here.
* Speed: As everyone knows, you can't have everything in life. If you want a faster lens, you're going to end up with a bigger lens... and a more expensive lens... or a lens with a smaller focal length range (which is what I would argue for). I along with everyone else would have liked a faster lens, but this is basically a consumer grade all in one, does everything lens and thus f4 is in line with this kind of product.
2. In summary, this is a very good lens for all Olympus micro 4/3 users who understand and accept the limitations of this lens. Now as wish list to Olympus: please come out with some quality (optically and build quality) lens, esp prime lens.

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OLYMPUS 261504 Zuiko Digital 14–150mm f/4.0–5.6 ED Lens

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