Re: [APML] using a nikon 400 f2.8

["Brian" <focus@linkus.net>]

thank you Tom.
I will check the size of the dr 177s and my lens.
Brian
----- Original Message -----
From: Tom Diana <tomdiana@means.net>
To: <astro-photo@seds.org>
Sent: Monday, February 12, 2001 10:51 PM
Subject: Re: [APML] using a nikon 400 f2.8


> Brian,
>
> I had some rings custom made.  Otherwise, I would have used the Losmandy
> DR177 (I have a G11).  I positioned one just in front of the tripod collar
> and the other behind the (extended) lens shade.  I also have an aluminum
> block bolted to the mounting plate.  This has a 1/4 in. hole bored through
> it which allows me to secure the lens by its regular tripod mount.  This
way
> I can still rotate the camera body by temporarily loosening the ring
screws.
>
> I hope this is clear.  Feel free to contact me if you have any other
> questions.
>
> Tom
>
> -----Original Message-----
> From: Brian <focus@linkus.net>
> To: astro-photo@seds.org <astro-photo@seds.org>
> Date: Monday, February 12, 2001 9:56 PM
> Subject: Re: [APML] using a nikon 400 f2.8
>
>
> >Hi Tom,
> >Thanks.  I was looking at the lens the other day and was trying to figure
> >where to put the rings.  Which rings did you use buy?
> >thank you
> >Brian
> >----- Original Message -----
> >From: Tom Diana <tomdiana@means.net>
> >To: <astro-photo@seds.org>
> >Sent: Sunday, February 11, 2001 4:02 PM
> >Subject: Re: [APML] using a nikon 400 f2.8
> >
> >
> >> Brian,
> >>
> >> I'd say yes.  I have a Pentax 400/2.8 and have noticed some flexure
with
> >> long exposures (especially when the lens was positioned off center).  I
> >> don't know if the Nikon is as massive as the Pentax (13 lb.) but it is
> too
> >> much for the standard tripod mount.  I've added a pair of rings and
this
> >> works much better.
> >>
> >> Tom
> >>
> >> -----Original Message-----
> >> From: Brian <focus@linkus.net>
> >> To: astro-photo@seds.org <astro-photo@seds.org>
> >> Date: Friday, February 09, 2001 10:25 PM
> >> Subject: [APML] using a nikon 400 f2.8
> >>
> >>
> >> >Hello Guys,
> >> >Will I need to support a Nikon 400 f2.8 lens?  It has one of those
> >rotating
> >> >grips.  I was thinking I would need some rings or some support.
> >> >thanks guys
> >> >Brian
> >> >
> >> >
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> >>
> >>
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> >
> >
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