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Originally Posted by Iddon
G'day guys (and gals),
took some shots last night with the 300D with the 55mm lens. Am looking at the 75-300mm lens.
Can anyone advise if this lens is a good choice for astro work in piggyback ? Any better options ??
My intent is to do piggyback work for a few months, and then to eventually move to a-focal on the wedge with the Lx200.
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G'day Grant,
I'm basically interested in the same thing and here's whats been suggested to me.
Two good Canon lenses for astro are the:
1: 85mm f/1.8 USM for a semi-wide field.
2: EF 200mm f/2.8 L USM (visit
http://www.panther-observatory.com/telescopes.htm )
Another factor to keep in mind is the focal ratio of your lens when doing astro. These f/2.8 and below are more suited for this type of work.
At the moment I use the EF-S 10-22mm lens for wide field.
This is the Milky Way shot I took recently.
http://www.iceinspace.com.au/forum/s...ead.php?t=3850
I'm still researching the best options though, coz I havn't done any real DSO yet with the 300D.
Hope this helps.
RB