Hi Tom,
I have shot the moon using a 300 mm telephoto and the image was quite
descent. The purpose of my question was more towards aesthetics ... do I go
after a wide-field view (55 mm lens) and get some of the foreground trees, the
mountains in the background and the small lunar disk and Iridium flare or do I
narrow down my field quite a bit and basically concentrate on the lunar disk and
flare?
In one sense it does not matter as I will be setting up for both. I am
quite eager to see how things will turn out but a flare within one degree of the
moon is rather cool.
Anthony.
Tom Wagner wrote:
> Anthony,
>
> > Any thoughts about what kind of lens to use?
>
> The image area for 35 mm film is 24 by 36 mm in size. To determine the size
> of the moon on that frame use the following equation. fl x 0.075 x 0.5.
> The fl = the focal length of the lens you use while the 0.5 is the diameter
> of the moon in degrees. To determine the size of the moon on a print,
> estimate the magnification of the print (i.e. how many times the film image
> was blown up) then multiply that by the previous figure you came up with.
> You will find that the moon, let alone the ISS shot even with a 300 mm lens
> is disappointingly small!
>
> Good luck with anything shorter than 1000 mm!
>
> Tom
> Iowa
> USA
>
> ----- Original Message -----
> From: "Anthony Ayiomamitis" <anthony@perseus.gr>
> To: <SeeSat-L@blackadder.lmsal.com>
> Sent: Wednesday, July 25, 2001 4:09 PM
> Subject: Very close call tomorrow night
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