[OM] Re: 2X TC's

[Andrew L Wendelborn]

At 10:23 AM -0800 2/3/07, Allen Coltrin wrote:
>...  Can you
>stack 2x TC's without causing image degredation? i.e. 300mm+2x+2x = haw many
>more?

I tried just that combination once as an experiment in perspective. Image 
quality very bad.

Many of Gary Reese's tests are done with and without a 2X converter -- there is 
a
definite effect on image quality.

See  http://members.aol.com/olympusom/lenstests/default.htm

regards
  Andrew

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