11-20-2010, 09:57 AM
I do welcome 3rd party lenses where they either provide something better than the original, or do a good enough job for much less cost. But 3rd party compatibility remains a potential concern.
Recently it came to light that various Tamron lenses wont function fully with the outer cross type AF points on mid range Canon bodies as it appears they used the same lens ID as ancient Canon lenses which also do the same. And on Sigma, their lenses have trouble with the Sony Axx range unless updated. Credit to Sigma for offering a free update, but you have to worry which lenses are supported, and for how long?
Recently it came to light that various Tamron lenses wont function fully with the outer cross type AF points on mid range Canon bodies as it appears they used the same lens ID as ancient Canon lenses which also do the same. And on Sigma, their lenses have trouble with the Sony Axx range unless updated. Credit to Sigma for offering a free update, but you have to worry which lenses are supported, and for how long?
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.