Re: One hour sunset picture exposures?

[George Pearl <alps007@xxxxxxxxxxxxxx>]

Hi Bill and others...
I have both kinds of cameras. I have shot the 65 Roundshot using 70mm film
at wide open f/4.5 for stadium shots at night with superior results in
sharpness. I don't have enough experience with the 220VR to make any
worthwhile comment on the use of the Nikor lenses on that camera, except
that all jobs shot with the camera have produced great shots so far. I have
had one soft focus problem using the 300mm lens set at 100 meters though. I
am not sure why that happened yet, and will need to test it. The lens is
tack sharp. I have been using the 220VR to shoot some sunsets with the 135mm
and the 85mm lenses (Nikon), and the shots were in the 3 or 5 minute range
using 400 Portra film. I usually stop down 2 or 3 stops and let her rip. The
pictures are sharp with no grain printed 48" long. I really don't think the
lens has that much to do with the sharpness of these rotational cameras as
does the proper film speed through the camera in relation to the rotating
speed of the camera. I have heard that stopping way down with these cameras
really doesn't do much for sharpness. Is that a fact? Who really knows the
answer of sharpness here? Looks like this will take a bunch of testing to
come up with a true answer.
My best,
George S. Pearl, BCQDE, BCEP, FEPIC, QPP
ALPS - Evidence & Photo
2139 Liddell Drive, NE
Atlanta, GA 30324-4132

Tel: 404/872-2577
National: 1-800-USE-ALPS
Fax: 404/872-0548
Home: 404/634-1139
Cell: 404/771-9121
ALPS Website: "http://www.ALPSLABS.com"
Atlanta Panorama is a division of ALPS...
"http://www.AtlantaPanorama.com"


----- Original Message -----
From: "Bill Glickman" <bglick@xxxxxxxx>
To: <panorama-l@xxxxxxxxxxxxxxxxx>
Sent: Sunday, August 06, 2000 3:18 AM
Subject: Re: One hour sunset picture exposures?


> George,
>
>     I guess I should have explained further... I do not shoot the shot if
it
> needs 30 minutes at sunset... I was just stating that if one shoots a 180
> deg. sunset, even with 200 speed film, its not uncommon at f 16 to see 30
> minute exposures.... hence the benefit of MF lenses over LF lenses,
whereas
> at least we have the option to shoot at 5.6 to reduce the 30 minutes down
to
> say 4 minutes, which is a bit more feasible.  The fixed fl roundshot 70's
> use LF lenses which the MTF curves make it mandatory they shoot at 16 or
> above.  That was my point... make more sense now?
>
> Regards
> Bill G
>
>
>
> ----- Original Message -----
> From: "George Pearl" <alps007@xxxxxxxxxxxxxx>
> To: <panorama-l@xxxxxxxxxxxxxxxxx>
> Sent: Saturday, August 05, 2000 4:05 PM
> Subject: One hour sunset picture exposures?
>
>
> > Bill, will you please tell me just how you can take a one hour sunset
> > picture? By the time you get through taking so long of a sunset,  one
half
> > of the panorama would be in sun while the other half would be in total
> > darkness wouldn't it? Or do you start the exposure say...55 minutes
before
> > official sunset? What do you do?
> > Just wondering.
> > My best,
> > George Pearl,
> > Atlanta, GA
> >
> > ----- Original Message -----
> > From: "Bill Glickman" <bglick@xxxxxxxx>
> > To: <panorama-l@xxxxxxxxxxxxxxxxx>
> > Sent: Friday, August 04, 2000 2:18 PM
> > Subject: Re: interchangeable lenses vs. fixed focal length
> >
> >
> > > From my experience, yes and no.  Yes if you do not tweak the
> > interchangeable
> > > camera so its near perfect.  No, if you masterfully tweak your lenses.
> > One
> > > major benefit often overlooked with interchangeable lens cameras like
> the
> > > 220 VR is that MF lenses are designed to be shot at wide apt., while
the
> > LF
> > > lenses used on the fixed fl cameras produce their sharpest images at
> small
> > > apt. like f16 and higher.  This can make for some very long
> exposures....
> > > not uncommon for me to see 30  minutes to an hour during sunset shots
at
> > 180
> > > Deg. with 200 ISO film...
> > >
> > > Bill G
> > >
> > >
> > > ----- Original Message -----
> > > From: "Katherine Enos" <enos@xxxxxxxxxxx>
> > > To: <panorama-l@xxxxxxxxxxxxxxxxx>
> > > Sent: Saturday, July 01, 2000 11:34 AM
> > > Subject: interchangeable lenses vs. fixed focal length
> > >
> > >
> > > > Do rotational cameras that use one fixed focal length lens tend to
> > achieve
> > > > higher quality (sharpness over the entire film plane?) than those
that
> > are
> > > > made to take lenses of numerous focal lengths?
> > > >
> > >
> >
>