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<blockquote data-quote="F-Stop" data-source="post: 85069" data-attributes="member: 11105">So...last night I tried some star shots with my D5100, 35mm f1.8 G lens.&nbsp; I set it to manual exposure, f1.8, and a 15 second exposure and got some nice captures.&nbsp; But my old eyes couldn't see to manually focus stars in the viewfinder and I did the best I could in Live View.&nbsp; Autofocus wasn't working consistently.&nbsp; The question is this:&nbsp; Shouldn't I be able to rotate the focus ring to the extreme position toward infinity and have good focus for a star field?&nbsp; With live view, it looked to me like the stars came into focus and then went slightly out at the end of the focus ring's travel.&nbsp; The result was that what looked good in the Live View screen ended up out of focus when I looked at the pictures this morning.&nbsp; Where am I going wrong?&nbsp; Should I have turned the focus ring to the limit of it's travel?Thanks everyone, for making this forum a great resource.&nbsp; I've read a lot more than I've posted since joining and hope to be able to contribute constructively in the future.&nbsp; I'm new at the DSLR art but years ago I was into photography quite a bit...it's really cool what we can do with digital these days!</blockquote>

[QUOTE="F-Stop, post: 85069, member: 11105"] So...last night I tried some star shots with my D5100, 35mm f1.8 G lens. I set it to manual exposure, f1.8, and a 15 second exposure and got some nice captures. But my old eyes couldn't see to manually focus stars in the viewfinder and I did the best I could in Live View. Autofocus wasn't working consistently. The question is this: Shouldn't I be able to rotate the focus ring to the extreme position toward infinity and have good focus for a star field? With live view, it looked to me like the stars came into focus and then went slightly out at the end of the focus ring's travel. The result was that what looked good in the Live View screen ended up out of focus when I looked at the pictures this morning. Where am I going wrong? Should I have turned the focus ring to the limit of it's travel? Thanks everyone, for making this forum a great resource. I've read a lot more than I've posted since joining and hope to be able to contribute constructively in the future. I'm new at the DSLR art but years ago I was into photography quite a bit...it's really cool what we can do with digital these days! [/QUOTE]

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