| Latest Review Posted | Sigma EX APO DG 300mm F2.8
I generally cannot disagree w/ the run of previous reviews of this lens.
How well (or poorly) it works w/ the Sigma converters is largely a matter of users' expectations. IMO the IQ w/ the 1.4x is still close to excellent; significantly better than cropping the image done w/o the converter, and with the benefit of better magnification in close-ups. With the 2x there is a greater loss of IQ, but combo is still usable and still yields better IQ than cropping the 300mm image; the biggest loss IMO is in contrast. Of course a 600mm combination is very vulnerable to subject motion, so high shutter speeds are called for in many situations, but that would be the same issue with almost any very long lens or combination.
My personal (admittedly somewhat picky) complaint is that Sigma supplies this w/ TS-21 tripod collar, which works as a tripod socket, but actually gets in the way when hand-holding. (Clearance between the barrel and handle is too narrow to allow use as a grip.) This means spending an additional $150 for the optional TS-41 which works as well as a socket and as a grip for hand-holding, unless one removes and replaces the TS-21 whenever switching from hand-holding to tripod mounted. |
