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Posted by J. Ramón Palacios on September 12, 1999 at 22:53:08:
In Reply to: Re: cameras & lenses for aerial photography posted by Shawn on September 11, 1999 at 21:29:35:
: : I'm after some information regarding suitable cameras for taking aerial photographs, vertically, through a whole in the floor of a plane. I need to see fairly acurate detail on the ground, but I want the photos to take in a large enough area so they can be easily mosaiced.
: : I would also prefer something easy to use ie an automatic, as the photos will need to be taken in relatively quick succession. We are going to be needing it for scientific purposes - photographing soil erosion. I am not a photographer and do not have a great deal of time in which to learn how to use the camera, so I need something easy and reliable.
: : Any suggestions you have would be greatly appreciated.
: : Yours sincerely
: : Jo McInnes
: : Land Management Extension Officer
: : Department of Natural Resources
: : PO Box 736 (212 Quay St)
: : Rockhampton QLD 4700
: : (07) 4938 4018
: : josine.mcinnes@dnr.qld.gov.au
: The posted comment is correct, but at a significant price.
NASA did do this but also had special lenses made by Hasselblad.
Hasselblad also does not make a "auto" camera. The only
interchangeable lens auto focus medium format is the new 645N by
pentax. I would go with a GOOD 35mm and long lens. Shoot at a
high enough shutter speed to eliminate shake
: (remember the 1/Focal length rule). Good weather and good
shooting.
Response:
I would hate to go into a discussion that may not help to clear
the subject. Perhaps I should have been a little more specific.
1.- I did not recommend to buy a lunar module Hasselblad.(Come on
Shawn!)
2.- Sorry, but Hasselblad DOES have an auto TTL camera as
follows:
The Hasselblad XPan incorporates a dual-format facility providing
a full panorama 24 x 65 mm format as well as a conventional 24 x
36 mm format on the same 35mm film. This innovative camera offers
all the convenience and advantages of the 35 mm format, but
provides the option to rapidly switch to the full panorama
format, without changing film. It becomes, therefore, the first
and only dual-format camera on the market that expands the format
instead of masking it, ensuring that every exposure utilises the
full area of the film. In addition, the 65 mm width of the full
panorama images is similar to the medium format.
The Hasselblad XPan is a feature-packed and professional grade rangefinder type camera that combines the user-friendliness of modern technology with traditional Hasselblad quality feel. The camera body is compact and ergonomically designed. It is a robust aluminium and titanium construction partly clad with synthetic rubber and built to withstand possible many years of hard workout.
The full panorama format is made possible by the large image circles of the two interchangeable 4/45 mm and 4/90 mm lenses, which have been specially designed for the Hasselblad XPan bu Fuji Film.
Viewing and focusing are by way of a bright-frame viewfinder and coupled rangefinder. Viewfinder information is adjusted automatically according to the focal length of lens as well as an automatic parallax adjustment for close shots. No accessories or manual adjustments are necessary, so changing lenses could be more swift and rapidly handled.
Film loading is automatic and convenient. After being inserted, the film is automatically withdrawn from the cassette. The camera has a DX code sensor with manual override for maximum control. As the film is exposed, it is transported back into the cassette, frame-by-frame. This valuable feature cleverly protects the exposed section of the film, even if the camera is opened by accident.
The TTL exposure meter supplies a centre-weighted average reading to provide an automatic aperture-priority facility with manual override.The camera can be used in single or continuous exposure mode. In continuous mode the frame rate is 3 frames/s with 24x36 format and 2 frames/s with 24x65 format. Using the camera in its auto-bracketing mode provides three consecutive exposures in + 0.5 or +1- step differences.
The main LCD display, located on the camera back, presents all necessary information including film speed, shutter speed and battery status. Another LCD provides exposure counter information, with further information being shown in the viewfinder.
The Hasselblad XPan camera was introduced at a Press Conference in Frankfurt, Germany on 20th July 1998, and deliveries although was announced would commence in September 1998, they hit the street early this year, 1999.
And then, again, ask what the curent doers are doing.
Have a great time
end of archived message
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