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I had this lense as part of a kit when i purchased the canon EOS450d.
I have found this lense is one I use alot, and love the fact I can zoom in close with little effort, which is especially good when photographing people in natural settings which are non posed.
The lense itself is not the quickest to focus, and I have found that I have had to knock the EV up by 1 or 1.5 stops in overcast conditions, but apart from that I've had some very pleasing results.
The noise level is OK, not what i would call silent, and when used to photograph wildlife, it allows you to have some distance and still get the picture full the frame.
so, i would recommend this lense for the above uses, as the price range is in the above average budget range, and being a good all round lenses.
you just need to take the time and effort to find out the exposure levels when using this lense to get the tack shape and correctly exposed images. As I have found a great difference between this and my canon lenses
recommended to all
The most important thing to look for in a camera lense is the picture quality. Why else would you buy it? Used correctly, the lense will create brilliant quality pictures. Sharp even up to the top end 300mm there can be abolutely no complaints, for me, about picture quality. However, whilst it is the most important factor, it is not the only one. Ease of use. This is where i saw the signs of it being a relatively budget lense. The focus ring can be stiff, which can affect how quickly you can focus on a once in lifetime object in time. It's not hard to move, but all i'm saying is that it can be a bit jerky. It does poke out a bit at 300mm, but that can be expected. Overall the lense is not what you're paying for, it is more than that. It is good value for money, but that does not mean it is flawless.
I bought this lense to go with my canon eos 450d. I really like the lense, its easy to use (once i got used to it being the other way around to my canon one, i.e turns opposite way to focus!). I'm really pleased with the lense. you can zoom a really long way and the pictures which come out are still perfect. the lense it quite heave, but so are more lenses of this size. I can't fault it though. it comes with its own carry case, which is quite nice and end caps (obviosley!) I can't fault the lense at all, i recently dropped it from about 2 feet, onto a roack, which it then rolled and bounced down for about 3 feet. i was dredding the worst, but the lense is still fine, and works without a problem, which i think shows just how hardy sigma lenses are. great piece of equipment for your kit bag.
the lense weights just under 1kg and is a f/4-5.6 DG Macro Lens.
Sigma 70-300, F4-5.6 Macro Super lens.
I purchased the Sigma 70-300mm F4-5.6 II Marco Super back a number of years ago as a general purpose, affordable, high power lens to go with my new Canon D300.
I also purchased a filter to go with the lens. (58 filter size required) I would recommend a filter to keep the lens free from scratches and smudges. It may also help to protect the lens if you drop it.
I have produced some cracking macro shots with this lens and also some good high power zoom shots at 300mm. I usually use the lens for birding and taking pictures of insects.
The lens comes with an attachable hood. I use this to block out the sunshine when I take shots.
I find the build quality of this lens to be a little on the cheap side, too much plastic is evident.
The lens is best used in manual mode as it can hunt in low light conditions for focus. On my example, the automatic focus has developed a whine when searching. I have also noticed that at high magnifications quite a lot of the pictures I take appear blurry. Perhaps I should be using a tripod. Also, some of the photographs taken at 300mm can appear very dark indeed.
To sum up the review, it would be a good first, cheap flexible lens for some medium to high power zoom work.
Don't expect every shot to be great. You may have to take quite a few to get one good result.
If your looking for better quality and reliability I would recommend taking a look at one of the Sigma EX models.
Some come with image stabalisation and faster 2.8L focal length. These lenses would be a lot dearer.
I purchased a 20mm F1.8 Sigma EX lens a few years ago, and that is in a different league in terms of quality and performance.
No, it's not a Mazda, it's a camera lens... Finished in matte-black and measuring a whopping 11" at maximum zoon with lens-hood attached, it certainly looks the part. I actually bought this lens quite some time ago, as the first 'upgrade' for my Minolta Dynax 505. It has served me well on that body ever since. Handling is good, the zoom ring is wide and has a ribbed, rubberised surface which provides good grip. The focus ring is similar, but with slightly different markings to help differentiate between it and the zoon ring, both turn easily without being so loose as to move when you don't want them to. Markings on the lens barrel are clear and simply laid out, providing distance readings in feet and metres along with a hyperfocal scale to aid in calculating depth of field for those of you without a depth-of-field preview button. The lens also comes with a macro feature, activated by sliding a button from 'normal' to 'macro' (unsurprisingly). Only useable at the maximum zoon, this allows the lens to focus on even closer objects, achieving a reproduction ratio of 1:2. Zoom range is from 70 to 300mm giving an effective zoom level of 4x, with the minimum aperture changing through the zoom range from f4 at 70mm to f4.5 at 135mm and f5.6 at 300mm. In use on my Dynax 505 the lens has provided some excellent pictures. Not having a similar lens to compare against I can't make precise statements, but I have had a number of pictures enlarged and have been pleased with the detail. The long zoom means subjects that were previoulsy out of reach or just lost in the frame are now attainable. It has proved an excellent companion at airshows, when taking nature shots and at isolating details in a crowd without being noticed. The relatively restricted minimum aperture is a bit of a bind at sporting events though, meaning that unless the lighting is excellent, a very fast film is needed to freeze the action. The supplied l
ens hood has, so far, done it's job and protected me from any noticeable lens-flare. It clips neatly onto the front of the lens in a backwards-facing position when you're not using it. If I were to grumble about anything, it would be the hunt time when focusing. The lens cane sometimes take a second or two tbefore the auto-focus locks, which for action shots is far from ideal. Because of this, I have tended to use it in manual focus mode far more than I expected, pre-focusing on a certain spot to be sure of capturing the picture I want rather than loosing the moment waiting for the auto-focus to stop whirring. This brings me to the last 'gripe, where 'stealth' is required as the gearing inside the lens is fairly noisy whils focus is being sought, thus blowing your cover. Unfortunately I have not had the same joy when using it on my Dynax7. For whatever reason (and I expect it's somthing to do with the new auto-focus system in the Dynax7), the lens simply refuses to work. The camera cannot set the lens aperture once the zoom reaches 135mm, regardless of which mode (fully manual or shutter/aperture priority) it is in. As there is no facility on the lens itself for manually dialling in an aperture, this leaves me with next to no control over the picture I want so, alas, I can't compare focus times on the newer body with the old, nor the quality of pictures although the optics haven't changed so I don't expect there to be any difference. In summary then, this is a decent telephot-zoom lens at an incredibly low price compared to the 'main-dealer' alternatives. It produces excellent results for the vast majority of subjects, with low-light sports/action subjects being it's principal weakness. It's chunky but not too heavy, sturdily constructed (it even has a steel mounting ring) and thoughtfully laid out. Available in fittings for all the major manufacturers, mine is for Minolta AF but in truth the only
one that is likely to be any different is the Canon fitting as it will have focus motors inside the lens barrel. If I were to give you one piece of advice, it would be to take your camera body with you when buying, and to test out that it's fully compatible (across the whole zoom range and at all apertures!) before parting with your hard-earned.