(meteorobs) Meteor photography and fisheye lens advice please

[Przemyslaw Zoladek]

Single fast lens with medium focal lengths (i.e. 1.2/35) is useful
mostly during the meteor shower maxima. Fisheye lenses with maximum
possible FOV is recommended for fireball patrol. In this case limiting
magnitude is a secondary factor.


Greetings


Przemyslaw Zoladek



Mike Hankey wrote:

> from astrotopix:
>
> You can go about 1.5 magnitudes fainter with each doubling of
> aperture. So if I were shooting the 16mm at f/2.8 at 5.7mm aperture,
> and an 85mm f/1.8 shooting wide open at an aperture of 47mm, that
> would be about a little more than a three times doubling of the
> aperture. So the 85mm can record stars that are about 4.5 mags
> fainter.
>
> On Fri, Oct 30, 2009 at 5:13 PM, Thomas Ashcraft <ashcraft at heliotown.com> wrote:
>   
>> Leo S wrote:
>>     
>>> What specific info are you looking for regarding fish-eye lenses?
>>>
>>>
>>>       
>> Hi Leo and all,
>>
>> I recently learned that my local camera store rents out fisheye lenses
>> by the night and I am thinking of renting a lens for the Leonids to fit
>> onto a Canon T1i dSLR camera. . But I don't know what types of fisheye
>> lenses would be best suited for meteors.
>>
>> Any suggestions are welcome. For example, what mm lens is optimum?
>>
>> Thank you in advance again.
>>
>> Thomas
>>
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