Fowl Mouth
Just a guy with dogs
I just received my 2008 Sigma lens brochure in the mail, and low and behold, two new lenses with Sigma's "Optical Stabilizer" technology are listed.
No longer in the flock is the older 80-400 4.5-5.6 OS. It's now seemingly replaced by the 120-400 4.5-5.6 OS with one extra lens element.
Also, although the 50-500 "Bigma" remains, a new variant is listed. The new sibling is a 150-500 5-6.3 with OS.
This is news to me, and who knows how they will perform, if any better than their repspective predecessors. One thing that seems promising is the reduced zoom range. It seems that lenses that abide by the 3x rule tend to retain sharpness across the full range better than those that really strech the limit.
I scanned a couple of pages...
No longer in the flock is the older 80-400 4.5-5.6 OS. It's now seemingly replaced by the 120-400 4.5-5.6 OS with one extra lens element.
Also, although the 50-500 "Bigma" remains, a new variant is listed. The new sibling is a 150-500 5-6.3 with OS.
This is news to me, and who knows how they will perform, if any better than their repspective predecessors. One thing that seems promising is the reduced zoom range. It seems that lenses that abide by the 3x rule tend to retain sharpness across the full range better than those that really strech the limit.
I scanned a couple of pages...