Hi Fred,
I would say they are all pretty similar in resolving power and
color. I know the bokeh and 3D effect
comes into play nicely when the subject matter has more depth,
regarding the 90/2.5, and that would be without the 1:1 adapter.
Steve Larson
Redondo Beach, California
"Everyone has a photographic memory. Some just don't have film."
----- Original Message -----
From: "Fred" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, January 25, 2003 7:51 AM
Subject: Re: vivitar 90mm 2.5 vs 105mm 2.5 vs105mm2.8 kiron vs tamron 90mm
> Hi, Steve.
>
> >> Is the series 1 vivitar 90mm as good as its cult status ?
>
> > I can vouch for the VS1 90/2.5 is as good as its "cult status". I
> > can`t say anything about the other lenses because I`ve never owned
> > them, but I`m sure they are very fine lenses. However, the VS1
> > 90/2.5 is sharp corner to corner even at f2.5 and exhibits a kind
> > of 3D effect.
>
> I have a few test macro shots taken using both the VS1 90/2.5 Macro
> with and without its 1:1 Macro Adapter and its optical twin
> ("separated at birth" - <g>), the Tokina AT-X 90/2.5 Macro, with and
> without its 1:1 Macro Extender -
>
> VS1 @ 4:1 @ f/8 (without 1:1 Macro Adapter) -
> http://www.cetussoft.com/pentax/v9025/v9025-41-8.jpg
>
> VS1 @ 2:1 @ f/8 (without 1:1 Macro Adapter) -
> http://www.cetussoft.com/pentax/v9025/v9025-21-8.jpg
>
> VS1 @ 1:1 @ f/8 (with 1:1 Macro Adapter) -
> http://www.cetussoft.com/pentax/v9025/v9025-11-8.jpg
>
> AT-X @ 4:1 @ f/8 (without 1:1 Macro Extender) -
> http://www.cetussoft.com/pentax/x9025/x9025-41-8.jpg
>
> AT-X @ 2:1 @ f/8 (without 1:1 Macro Extender) -
> http://www.cetussoft.com/pentax/x9025/x9025-21-8.jpg
>
> AT-X @ 1:1 @ f/8 (with 1:1 Macro Extender) -
> http://www.cetussoft.com/pentax/x9025/x9025-11-8.jpg
>
> Fred
>
