Sigma 70-300 mm F4-5.6 DG APO Macro Motorised Lens

I bought this lens about 6 months ago and have been very pleased with its performance. For its price it out performs more expensive lenses. The focus does go a little 'soft' past 200mm however despite this the performance is strong. I have no hesitation in recommending this lens.

I purchased this lens about a year ago, and use it as my main lens, i have to say that my first lens purchase was the Tameron 70-300 with macro. and compared to that lens the sigma is streets ahead. i shoot mostly hand held when out in the field. and the pictures are always sharp enough, but i do find that the auto focus is about 3mm out it tends to focus just before your intended point (fitted to a Canon eos 350D)

i would recomend this lens to anyone looking at a good entry level lens but there a just a couple of tiny little niggles.

1. With the supplied lens hood fitted it does suffer from realy bad zoom creap under its own waight. while walking around using the neck strap this can be bothersom.

2. the most annoying niggle is one i have recently found. it would appear that it has an issue even when manually focusing that you can NOT get a sharp shot (even using a tripod with remote shutter and using canons mirror lock up function) if you have a circular polarising filter attatched. this may be just down to the filter i have (Camlink).
I would very much like to hear from anyone else as to other brands of circular polarising that maybe do work with this lens.

as for its slow auto focus under normal conditions, i dont use it, i prefer to manually focus anyway. even for wildlife shots. but thats just me

Hi i have just acquired this lens to use on my Nikon D90 a couple of weeks ago and so far i am very happy with it.
This piece of glass is just what i was needing, an all round lens that is versitile as i didnt want to keep buying a multitude of lenses, so with this lens and the kit lens on my D90 the 18-105mm vr dx i should not need any more glass for ages.
hope this has helped
grant