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Re: [OM] Zuikoholism and Christmas

Subject: Re: [OM] Zuikoholism and Christmas
From: "John A. Prosper" <prosper@xxxxxxxxxxxxxxxxx>
Date: Sat, 25 Dec 1999 00:40:08 -0500 (EST)

On Wed, 22 Dec 1999, GMA wrote:

|"John A. Prosper" wrote:
|
|> It weighs in
|> at 1900 grams (4 pounds, 3 ounces), making it lighter than the popular
|> 300/2.8 APO designs, even when paired with a good 2X TC to yield a
|> 250/2.8 system.
|
|Slight error here.  Coupled with the Zuiko 1.4X, the 180/2 becomes a
|250/2.8  And the performance of this pair is astounding, see Gary's
|tests.  If you don't really need the extra stop, this is a great way to
|achieve fast performance at 250mm  And it's a lot lighter than the 250/2
|as well. Coupled with the 2X, performance at 360/4 suffers a bit but it
|still delivers 'A-' performance at F/4 with 'Very High' contrast.
|Performance being almost on a par with the 300/4.5.

Yes, the "2X" was a typo.


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