Imagemaster wrote: oakrrl wrote:
I wonder, though, whether more of a difference would appear handheld. The 100-400 is nearing the limit of weight I can, as a 75 year old, hold steady. I wonder if the IS on the 300 (and its sync), along with its brighter aperture, would make a difference.
No, it wouldn't if you are finding your 100-400 heavy when the 300 weighs .75 lbs. more. And remember the 100-400 is many lenses in one package. If you got the 300, would you then want to pack around something in the100-250mm range and 350-400mm range?
That was always my argument with the Z 180-600 VS the Z 600 6.3. Everyone talked about the weight savings with the 600 (close to a pound ), but failed to mention the likelihood of needing to bring along another lens, which obviously adds to weight. The slight difference in IQ between the two was never enough in my mind to consider the prime over the zoom. It gets a little more complicated with the 300 f4 VS the 100-400 because not only is there a difference in IQ but one is a 6.3 lens and the other an f4. From what I saw in my testing and the short time I had the 300 out in the field I don't feel the increased reach of the zoom is much of an advantage because cropping in with the 300 gives nearly identical results. And yes, I know, the obvious solution is the 150-400 4.5 but that lens is too expensive for me.
Gary
Sep 22, 2025 at 07:51 AM
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