On 2/7/2022 2:30 PM, Wait and See Mike Gordon wrote:
<<1. What will the resolution on a 4/3 sensor be, relative to lenses designed
for
<<the smaller format?
Perhaps the design specifics matter a bit less for CAT lenses at that FL as the
sensor stack has no bearing and little CA to worry about.
I"m talking only about the issue of cropping a FF image circle, vs. using a lens designed for the smaller sensor. There
have to be trade-offs.
One can obtain very high res CAT lenses with some effort, witness
the JWST that can resolve images at the fringe of the observable universe. ;-)
I suspect Tokina did not have a 10*10**9 USD budget and the size may make
hiking a bit problematic.
\;~)>
Curiously the GM5 is only a tad better for SNR than the 1" sensor, though the
GM5 sensor design is showing some age. It still is a tiny high quality kit.
https://tinyurl.com/y6vxsnt9
I keep telling people that that 1" sensor, in several cameras, is a big deal. The ZS200 is a highly capable camera. I
took it as my main camera several days on our two weeks in Ireland, 2019, and was not disappointed with the results.
Surprised, rather, at quality of the files.
Limitations:
Falls apart sooner at high ISOs than 4/3" sensors
Inadequate C-U at longer FLs for me. Obscure fix possible, and effective.
Short reach, for me. 😉
------
The same sensor in the Sony RX10 IV gets a faster lens, at both ends, 600 mm eq. reach, and odd, but effective,
C-U/macro, but is a much larger beast.
I don't disagree with your views, but am intrigued by the Tokina CAT. Perhaps
they'll really nail the design. I hope it isn't just a minor update.
I haven't found a lens diagram for it, but 7 elements in 2 groups vs. 7 in 7 (looks like 7/6) and the huge decrease in
weight argue for an all new design.
No Waiting Moose
--
What if the Hokey Pokey *IS* what it's all about?
--
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