Good question ... I simply don't know.
ESIF doesn't tell enough.
But Gary Reese tells his results with the 1.4X-A were better than
expected than *without* the 1.4 - "SQF grades exceed those without
teleconverter due to use of a lens support. Without additional lens
support, the shutter and auto diaphram mechanisms in the OM-1n test
camera probably induced harmonic vibrations which impaired image
quality."
http://tinyurl.com/ltu93oz _ but it shows quite an improvement!
Fernando.
On Sun, Nov 30, 2014 at 10:05 PM, Hughes <timhughes@xxxxxxxx> wrote:
> Probably not well enough known for the prices to reflect that.
> I wonder if the optical design improved much too ?
> T
>
>
>
> ________________________________
> From: Fernando Gonzalez Gentile <fgonzalezgentile@xxxxxxxxx>
> And it is possible from s.nº > 200.000 - a change in design was made:
>
> "1-Because of a change in optical design, this combination is only
> matched with lenses that have a serial numbers larger than 200.000."
--
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