Aperture help!

Dear all,

I need some help on this.

The other day I went to the mountain. I was on top of it overlooking a terrace rice field in the valley below. I shot a photo and set the aperture to very small, it was probably around f/29. And the photo came out like this:

Terrace rice field

(Sigma 70-300, photo shot at 300 mm)

My question it: If this was your case, what would you set the aperture to be?

Great thanks to any answer of yours! Cheers, mate!

I recommend going to http://www.dofmaster.c​om/dofjs.html. It should give you an idea of what aperture to use to achieve a certain DOF (which is what I think your question is going towards).

And, could you post the image on a different host next time? The site loads terribly slow even on my DSL connection.

Thank you iN5P1R3, so much!

Did you sharpen that image? And what was your shutter speed & ISO?

I'd probably shoot one at 5.6 & one at f/11.

I suspect that what you have there is a case of diffraction softening. This happens at small apertures (from about f/11 on APS-C and f/16 on FF).

f/8 should do the trick for most landscape work.

xarqi called it right. With APS-C, usually you are diffraction limited by f/11...anything smaller risks lost resolution

Assuming you are using 1.6x, and the lens is this lens:

http://www.photozone.d​e …st-report--review?start=1

Then f/11 looks like the f-ratio that would deliver the best results.

iN5P1R3 wrote in post #8060401
I recommend going to http://www.dofmaster.c​om/dofjs.html. It should give you an idea of what aperture to use to achieve a certain DOF (which is what I think your question is going towards).

And, could you post the image on a different host next time? The site loads terribly slow even on my DSL connection.

it's slow on my cable t1 also...

nightflowervn wrote in post #8060044
Dear all,

I need some help on this.

The other day I went to the mountain. I was on top of it overlooking a terrace rice field in the valley below. I shot a photo and set the aperture to very small, it was probably around f/29. And the photo came out like this:

Terrace rice field

(Sigma 70-300, photo shot at 300 mm)

My question it: If this was your case, what would you set the aperture to be?

Great thanks to any answer of yours! Cheers, mate!

I would like to know what shutterspeed you were using??