Canon’s new 600mm and 800mm lenses

Started 3 months ago | Discussions thread
OP Chris R-UK Forum Pro • Posts: 20,772
An example at 600mm equivalent focal length

alanr0 wrote:

Old Greenlander wrote:

Chris in UK

tell me how you get a shallow DOF with those lenses...

How shallow do you want?

At 10 m distance, assuming 0.03 mm Circle of Confusion, DOFmaster tells us that depth of field extends from 9.95 m to 10.05 m for the 800 mm lens at f/11.

For a portrait, it will be tricky to get nose and ears in focus at the same time, if the subject is facing you.

An example - 300mm f/5.6 on M4/3, equivalent to 600mm f/11 on FF. Distance about 6m.

It is really difficult to get both the nose and ears in sharp focus with this focal length at this distance.

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Chris R

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