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As you know I have been trying out a couple of extra wide zooms (the Sigma 10-20 and the Tamron 11-18.)
Here are a couple of shots taken at Hawkestowe Park, While neither shot is anything to write home about, I have put them up to see if you can guess what lens took what shot. They are both taken from approx the same spot. The shots were taken on different, but similar weatherwise, days. Shot A was taken 45 mins later than B. A Cokin CPL was used in both shots.

Regards
Meicw

Unfortunately they are also taken from slightly different spots which means that the colours appear somewhat different, and due to the time span between the shots a direct comparison is difficult. Both lens look pretty good though.

I have no idea which is which, but the CA on both is pretty awful (tree on the left).

My thoughts same as MCWB

I think #2 is a better image, mainly because of the CA issue already noted.

Which lens though?

I'm guessing that #2 is the Sigma and #1 is the Tamron.

I would hazard a guess and say that the first pic is the Sigma - the colour contrast seems to be better. As for the CA, I am not seeing it, but there again, I am an old f@rt

Hi Meicw,

thanks for the comparaison. Would the exif data be accurate? Because the shutter speed on the two picture is different, picA is 1/100 while picB is 1/250, so that would affect the photos.

Metering is also reported a different, not sure what impact that would have on the photos.

Otherwise they both look good to me

Thanks,

radar

CA aside I think #1 Tamron and #2 Sigma
cheers
marco

Thanks for the replies. A was the Sigma and B the Tamron. I have chosen the Tamron, because it does seem to suffer from slightly less CA than the Sigma.

Regards
Meicw