More DoF experimentation, and a question about MF

[TNFlyBoy]

Hey all, I went out yesterday and took some pics of my bike with my 50mm f/1.8 on my D40. I was wondering if anyone had any tips on manually focusing on a subject relatively far away in low light? I took a whole bunch of pics and a lot of them that i thought where in focus, turned out not to be... and of course i didn't zoom in on the camera playback...

here's a couple of pics:

1.

2.

 

[tirediron]

What do you mean by 'relatively far away'? The 1.8 hits infinity in the 25' - 30' area wide open, and considerably less than that stopped down.

 

[Mike_E]

OK, what was your question about Medium Format?

 

[reg]

OK, what was your question about Medium Format?

Manual focus.

 

[TNFlyBoy]

What do you mean by 'relatively far away'? The 1.8 hits infinity in the 25' - 30' area wide open, and considerably less than that stopped down.

i'd say about 20' away, it wasn't far enough to hit inf, but it was still difficult to determine if the subject was actually in focus.