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30-08-12, 01:59 PM
Join Date: Jul 2009
Location: East Devon
Originally Posted by
I have noticed this with my Tamron lens. I think, in future I will save for the canon lens rather than the cheaper alternative. I have hade functionality issues with it too and its not working well at the moment either.
Unless you go for the Canon 70-300L I would look at either the Tamron 70-300mm f/4-5.6 Di VC USD or the Sigma 70-300mm f4-5.6 DG OS as the Canon 70-300 EF-IS IMHO is not a very good lens for the money, infact I had one, sold it and got the Tamron which is far superior.
If you are on a tight budget then Canon EF-S 55-250 f4-5.6 IS is a great lens, the build quality isn't up to much but the image quality is better than the Canon 70-300 EF-IS.
I think what Alex is experiencinig is Chromatic Aberrations which are probably more obvious at the long zoom end, more expensive lenses have the necessary optics and lens coatings to reduce these they can be corrected in software I believe the Canon Digital Photo Professional software and Adobe RAW has corrections for this as does lightroom. The Canon professional software should have come on DVD with your Camera Alex although you will need to shoot in RAW and I am not sure if it will work with non canon lenses so Adobe Camera Raw which is also free may be the other option.
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