Re: [APML] OT: Nikon N90 vs N90s

["Bert Katzung" <katzung1@comcast.net>]

Hi Joe:
I'll try that as soon as I get back from a grizzly-imaging trip next week.
Maybe someone else can answer that right now.
Bert

Bert Katzung
katzung1@comcast.net
www.astronomy-images.com

----- Original Message ----- 
From: "Joe Pedit" <pedit@email.unc.edu>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Thursday, September 04, 2003 12:35 PM
Subject: Re: [APML] OT: Nikon N90 vs N90s


> One of the nice features of the N90s is that its autofocus is sensitive
> enough for prime focus work at f/6.8.  I can focus on a bright star,
> bright planet, the edge of the moon, or the edge of the sun.  I am
> thinking of purchasing a digital SLR for next year's Venus transit of
> the Sun.  The N90s camera was introduced a decade ago so I would suspect
> that the autofocus sensors of the D100, 10D and 300D are better than
> that in the N90s.  Can anyone comment on the ability of these dSLRs'
> autofocus sensors working at f/6.8 for prime focus work?
> Thanks,
> Joe
>
> Bert Katzung wrote:
> > Hi Bobby:
> > I assume you want to stay with Nikon for your sports shooting because
you
> > have those good Nikon lenses. If you can possibly stretch that budget
for a
> > D100 (the digital equivalent of the F100) I would go for it in a minute!
I
> > just bit the bullet and got a digital (Canon10D; quite similar to the
Nikon
> > D100) and among the (more or less) hidden advantages of the digital box
is
> > the ability to switch ISO speeds on a frame by frame basis. You can go
from
> > ISO 100 in one frame to ISO 1600 in the next and then back again. Quite
an
> > advantage when working with fast action in varying light situations.
That
> > plus the ability to evaluate your exposure immediately provide major
> > improvements. You can see some of my daylight stuff with the new box at
> >
http://www.astronomy-images.com/day-images/California/greatwhiteegret-banking.htm
> > and related bird pictures.
> > Bert
> >
> > Bert Katzung
>
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