Tokina Super Wide Angle 12-24mm f/4 - DOF Question

"Dave" wrote in message
...
Hey there,

I was hoping to get testimonials about the Tokina lens' Depth Of Field
abilities. I recently bought the Canon Super Wide 10-22 f/3.5 - 4.5
and I'm displeased with it's DOF abilities. I've tried shooting both
with AF and MF, with varying small apertures, ISO's, ... and I'm just
not getting what I need from this lens. It's a shame as the lens if
performing quite well otherwise (barrel distortions, CAs, MTF
Res, ...).

I had posted a comparative (Sigma vs Canon) Wide Angle lens question a
couple of weeks ago - to which I received a bunch of great replies -
so I guess this is somewhat related.

Thanks a lot, dave

In what way are you "displeased with its DOF abilities"?

Any lens of the same focal length and aperture used on the same format and
in the same circumstances will give you the same depth of field. I have the
Tokina 12-24 and it's great, its depth of field is great too, but at the
same focal lengths etc. your Canon 10-22 would be exactly the same as far as
DOF is concerned.

Neil

Neil

On Nov 21, 7:59 am, "Neil Harrington" wrote:
"Dave" wrote in message

...

Hey there,

I was hoping to get testimonials about the Tokina lens' Depth Of Field
abilities. I recently bought the Canon Super Wide 10-22 f/3.5 - 4.5
and I'm displeased with it's DOF abilities. I've tried shooting both
with AF and MF, with varying small apertures, ISO's, ... and I'm just
not getting what I need from this lens. It's a shame as the lens if
performing quite well otherwise (barrel distortions, CAs, MTF
Res, ...).

I had posted a comparative (Sigma vs Canon) Wide Angle lens question a
couple of weeks ago - to which I received a bunch of great replies -
so I guess this is somewhat related.

Thanks a lot, dave

In what way are you "displeased with its DOF abilities"?

Any lens of the same focal length and aperture used on the same format and
in the same circumstances will give you the same depth of field. I have the
Tokina 12-24 and it's great, its depth of field is great too, but at the
same focal lengths etc. your Canon 10-22 would be exactly the same as far as
DOF is concerned.

Neil

Neil

When i said displeased by DOF performance I was referring to things
are out of focus far away when using f8 - f13 with my Canon 10-22
lens. My other lenses (Canon 17-85, 70-300) are sharper both close up
and far off - when using the same f-stops.

I've learned a lot of things in this mail and I'll read up on all of
them / try them out over the weekend.

So I'm good now, thanks, dave

I have the Tokina 12-24 f/4. I have found that at f/11 or f/16 as David says
below to be the sharpest when focused as suggested.

Steve
"David J. Littleboy" wrote in message
...

"Dave" wrote:

I was hoping to get testimonials about the Tokina lens' Depth Of Field
abilities. I recently bought the Canon Super Wide 10-22 f/3.5 - 4.5
and I'm displeased with it's DOF abilities. I've tried shooting both
with AF and MF, with varying small apertures, ISO's, ... and I'm just
not getting what I need from this lens. It's a shame as the lens if
performing quite well otherwise (barrel distortions, CAs, MTF
Res, ...).

DOF does not vary significantly with the lens quality (within reason).
Your Canon lens is fine.

If you want the maximum DOF in landscape work, turn off AF (set the lens
to MF), set the focus distance on the lens to 1 meter, use f/16, and use
the wide end of the range (16mm and wider). You should find that your
images are sharp from quite close to infinity. You might prefer f/11 for
sharpness, at which point you may want to stick to focal lengths closer to
10mm.

David J. Littleboy
Tokyo, Japan