#### kristelt

**Member**

Hello there, Hope everyones keeping well. Not sure where the best place to add this post, so feel free to move to a more relevant section.

Im stuck on perhaps the basics and would be grateful for advice.

I'm trying to work out the depth of field/ accurate f numbers on my camera. Its a box camera with a paper negative and I'm using a lens with it.

When on f8 the depth of field is remarkably shallow-more like that of an f2 that im used to. A friend told me a calculation for the depth of field is

based on the focal length divided by the f stop...but it doesn't seem right when I try these calculations?

Im stuck on perhaps the basics and would be grateful for advice.

I'm trying to work out the depth of field/ accurate f numbers on my camera. Its a box camera with a paper negative and I'm using a lens with it.

When on f8 the depth of field is remarkably shallow-more like that of an f2 that im used to. A friend told me a calculation for the depth of field is

based on the focal length divided by the f stop...but it doesn't seem right when I try these calculations?

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