On Nov 20, 2010, at 15:24, Larry Colen wrote:

> Thanks all for your comments.
> 
> Ann, I did some pixel peeping on other photos in the set looking for evidence 
> of tripod shake.  I think that one problem I'm having is accurately focusing 
> the 20/1.8 in the dark. I suspect that infinity is not exactly infinity. On 
> my cameras auto focus won't work in that light, and I didn't bring my laser 
> pointer.
> 

This is going to sound odd, but the last time I did long exposures at night, I 
found that using the Live View was a great way to quickly get my little points 
of light in the distance to be as tiny (thus, in-focus) as possible with a 
minimum of fuss.

That and stopping down to f/8 or so.

 -Charles

--
Charles Robinson - [email protected]
Minneapolis, MN
http://charles.robinsontwins.org
http://www.facebook.com/charles.robinson


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