01-08-2011, 07:52 AM
hi Warwick,
I had to make the same choice some years ago (on canon),
I finally choose the tamron, very fine lens,
cons ? very slow AF, AF only works with the central AF-point, quite builky (especially with the lenshood attached)
still, I think the sigma is a more obvious choice :
-f2.8 vs f3.5 allows the use of a 2* converter
-sigma has a focus limiter
-the focal lenght keeps the flash within the flash-syncro (if the body has 1/250 flash-syncro)
the only reason that kept me away from this lens, was the fear of guetting a bad example (decenterd f.e.)
IQ-wise I guess both are very good,
this could interest you
http://www.nnplus.de/macro/Macro100E.html
kr
couplos
I had to make the same choice some years ago (on canon),
I finally choose the tamron, very fine lens,
cons ? very slow AF, AF only works with the central AF-point, quite builky (especially with the lenshood attached)
still, I think the sigma is a more obvious choice :
-f2.8 vs f3.5 allows the use of a 2* converter
-sigma has a focus limiter
-the focal lenght keeps the flash within the flash-syncro (if the body has 1/250 flash-syncro)
the only reason that kept me away from this lens, was the fear of guetting a bad example (decenterd f.e.)
IQ-wise I guess both are very good,
this could interest you
http://www.nnplus.de/macro/Macro100E.html
kr
couplos