On Tue, 9 Jan 2001, Albert Yang wrote:
> I'm looking to buy a tokina 90mm macro lens, I was wondering if
> someone had the lens and would be nice enough to:
>
> 1) Email me a picture of it
I don't have one of those, but..
> 2) Possibly email me a few pics taken from it
There are a few on my website. Not strictly macro shots, though.
http://www.chm.bris.ac.uk/~cpian/music/pics/is18.jpg
http://www.chm.bris.ac.uk/~cpian/music/pics/is22.jpg
http://www.chm.bris.ac.uk/~cpian/landnat/pics/bcegnarly.jpg
http://www.chm.bris.ac.uk/~cpian/landnat/pics/bcenettle.jpg
http://www.chm.bris.ac.uk/~cpian/landnat/pics/bceperiwinkle.jpg
Were definitely taken with it.
> 3) Tell me how much they love/hate it
One of my favourite lenses. Someone on this list once mentioned that
the design was optimised for best results at a magnification of 1:6, at
which setting the long side of a frame would represent 9 inches, about
the height of an adult human head.... which means it's quite a good
portrait lens too.
> 4) Explain the extension for a 1:1 macro to me... I assume this is
> an adapter???
The built-in helicoid, although much longer than for a normal telephoto,
will only extend the lens far enough for a magnification of 1:2. To get
1:1 you need to add an extension tube. I have a set of Vivitar auto
extension tubes to do this. IIRC I need all three of them to get right
up to 1:1.
--
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| / | |/-\ | Ian A. Nichols |
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