Very interesting. I don't own a TS lens, but was wondering lately
how the image circle use would be with a smaller sensor. I've often
thought of getting the TS-E 90 for my 35mm to use as a close-up
lens: I wonder if what you're describing would change a lot with
longer focal lengths. The image circle gets smaller, right? It
seems possible that at some point it would become possible to shift
out of it.
Ken
At 05:03 AM 4/10/2006, you wrote:
Hi
I thought I'd fix my TS-E 24 to my 20D to see how it went, and found
that it seems to underexpose by about 1 or 2 stops as you shift to the
max. I've used the TS-E now for about 8 or so years, so I am familiar
with using it always on M (manual), and either metering by my hand spot
meter, or metering with it unshifted to account for the laser etched
focusing screen effects on the light meter issues.
Unlike my film body, it doesn't seem to vignet on the corners at wider
apatures (probably because the CCD is not at the corners where film may
be).
I suspect the tiny lens's that are put on the front of the CCD effecting
things, as it darkens whichever way I shift, and that's not what
happens with the focusing screen caused metering errors.
I don't expect too many 20D users will be using this lens (or the TS-E
45, 90) so it will probably not be usefull information to many, but just
incase it was, I thought I'd post it here.
anyway ... all the wizzbang and I'm back to bracketing again to predict
exposures.
An old roman saying goes along the lines of
"The more things change, the more they stay the same"
Still I must say that the image quality I'm getting is pretty good, and
seems to equal previous scans made of RDP-III using a Ni%#n Coolscan
LS-IV scanner.
I guess that if I was shooting 3000 images a day (as one user reported
doing recently with their D30) or if I was doing wildlife where my
lenses became 'longer' I'd be more impressed with the beast.
Its coming into spring, perhaps I'll get into some bird shots with my
100-300 USM, at least that'll be where I expect this camera to shine.
See Ya
Ken Durling
Composition and Music Services
Berkeley, CA
[510] 843-4419
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