RE: [APML] Choosing a 300mm lens...

["R. Scott Ireland" <ireland@gate.net>]

HI Eric,

I've been using a Nikkor 300mm f/4.5 EDIF AI-S lens for astro work for
awhile now, and I have been very happy with the results.  I'm sure you can
find these lenses used - my guess is they go for around $500 or so.
Excellent lens - very good wide open.

You can see several examples of images taken with the 300mm on my web pages
(listed below); unfortunately my server is down and I likely won't be back
"online" for at least a week.

Good luck,

Scott

website:  http://www.rsiphotos.com/
email:  ireland@gate.net

> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> Behalf Of eric raeburn
> Sent: Friday, May 31, 2002 6:03 AM
> To: astro-photo@seds.org
> Subject: [APML] Choosing a 300mm lens...
>
>
> I'm in the market for a 300mm lens for a Nikon camera body.  The f/2.8
> is not a possibility at this time, so I'm planning on the f/4, but would
> like to get people's opinions of some alternatives.
>
> The requirements: sharp images free of chromatic abberation; a tiny bit
> of degradation in the corners MAY be acceptable if it can be removed
> with only minimal cropping; a rotating mounting collar is highly
> desirable.
>
> Comments on these alternative choices (or anything else relevant) would
> be appreciated:
> 1. Off brands like Tokina, Tamron, Sigma.
> 2. Nikon zoom lenses (70-300 or 70-400).  These are f/5.6 at max f.l.
>    Is that way too slow?  Are there other problems with zooms?
>
> Note that this inquiry is primarily in regard to optics rather than
> the mechanics of mounting; I'm aware that these things are subject to
> flexure.
>
> Thanks,
> -Eric Raeburn
>
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