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Subject: focus tests on TL120
Date: 2010-08-20 01:35:05
From: Mark

Hi

Just checking to see if anyone else has this issue; when shooting in low light and open all the way I find my focus is off from whatever I'm aiming for as point of interest. Generally the eyes.

Anyone else and whats the work around?

Cheers

M

Subject: focus tests on TL120
Date: 2010-08-20 08:51:19
From: Nikhilesh Sekhar

Mark
Are you using the split image or the central ground glass image to focus, they seem slightly off on mine too. I have never had a problem though mainly because the largest aperture I have used is f4.0. I use mine with my vivitar flash indoors at auto f8 and f11 for closeups closer than 1 meter.

What situations are you using your camera wide open for?

Nik

Subject: Re: focus tests on TL120
Date: 2010-08-21 01:44:53
From: Mark

> Mark
> Are you using the split image or the central ground glass image to

i believe split image.

focus, they seem slightly off on mine too. I have never had a problem though mainly because the largest aperture I have used is f4.0. I use mine with my vivitar flash indoors at auto f8 and f11 for closeups closer than 1 meter.

I mix flash and ambient light so I need to get a wide aperture.

>
> What situations are you using your camera wide open for?

Mainly low light inside.

M

Subject: Re: focus tests on TL120
Date: 2010-08-21 17:12:51
From: Bob Venezia

Mark,

If it will work for you to always shoot in the same setup, you could do what I did. I set up a step ladder (though I could have done it all on the floor, or on a table) and shot an extended tape measure. I was using it to determine DOF for a close up session with a friend. You could then make an indicator on the camera that shows you where to set the focus. And bring your tape measure along to your shoot to place your model at the correct point.

Hope that helps.

Bob Venezia

Seattle, Washington

On Aug 21, 2010, at 12:44 AM, Mark wrote:

> Mark
> Are you using the split image or the central ground glass image to

i believe split image.

focus, they seem slightly off on mine too. I have never had a problem though mainly because the largest aperture I have used is f4.0. I use mine with my vivitar flash indoors at auto f8 and f11 for closeups closer than 1 meter.

I mix flash and ambient light so I need to get a wide aperture.

>
> What situations are you using your camera wide open for?

Mainly low light inside.

M

Subject: Re: focus tests on TL120
Date: 2010-08-22 00:42:16
From: Henri PEYRE

You have here an Excel DoF calculator (in french)

In yellow the cells to change : you put in the specifications of your lens, Excel makes the job...

Best regards.

Henri Peyre

www.galerie-photo.com

--- En date de : Dim 22.8.10, Bob Venezia a écrit :

De: Bob Venezia
Objet: Re: [MF3D-group] Re: focus tests on TL120
À: MF3D-group@yahoogroups.com
Date: Dimanche 22 août 2010, 1h12

Mark,

If it will work for you to always shoot in the same setup, you could do what I did. I set up a step ladder (though I could have done it all on the floor, or on a table) and shot an extended tape measure. I was using it to determine DOF for a close up session with a friend. You could then make an indicator on the camera that shows you where to set the focus. And bring your tape measure along to your shoot to place your model at the correct point.

Hope that helps.

Bob Venezia

Seattle, Washington

On Aug 21, 2010, at 12:44 AM, Mark wrote:

> Mark
> Are you using the split image or the central ground glass image to

i believe split image.

focus, they seem slightly off on mine too. I have never had a problem though mainly because the largest aperture I have used is f4.0. I use mine with my vivitar flash indoors at auto f8 and f11 for closeups closer than 1 meter.

I mix flash and ambient light so I need to get a wide aperture.

>
> What situations are you using your camera wide open for?

Mainly low light inside.

M

Subject: Re: focus tests on TL120
Date: 2010-08-22 02:30:27
From: Mark

I have a normal shoot tomorrow with a model and an assistant so think I'll run that test then.

A frame or two and then just shoot rest on normal shutter.

May try to pre-guess the error like focus on eye and then nose with assistant holding tape.

Cheers

M

--- In MF3D-group@yahoogroups.com, Bob Venezia wrote:
>
> Mark,
>
> If it will work for you to always shoot in the same setup, you could
> do what I did. I set up a step ladder (though I could have done it all
> on the floor, or on a table) and shot an extended tape measure. I was
> using it to determine DOF for a close up session with a friend. You
> could then make an indicator on the camera that shows you where to set
> the focus. And bring your tape measure along to your shoot to place
> your model at the correct point.
>
> Hope that helps.
>
> Bob Venezia
> Seattle, Washington
>
>
> On Aug 21, 2010, at 12:44 AM, Mark wrote:
>
> > > Mark
> > > Are you using the split image or the central ground glass image to
> >
> > i believe split image.
> >
> > focus, they seem slightly off on mine too. I have never had a
> > problem though mainly because the largest aperture I have used is
> > f4.0. I use mine with my vivitar flash indoors at auto f8 and f11
> > for closeups closer than 1 meter.
> >
> > I mix flash and ambient light so I need to get a wide aperture.
> >
> > >
> > > What situations are you using your camera wide open for?
> >
> > Mainly low light inside.
> >
> > M
>

Subject: Re: focus tests on TL120
Date: 2010-08-26 02:14:00
From: Mark

Didn't bring it in the end. Wasn't sure of the model's skills and time constraint.

I did get to use a friends W1 ; http://www.start3d.com/en/5600632589/0013

M

--- In MF3D-group@yahoogroups.com, "Mark" wrote:
>
> I have a normal shoot tomorrow with a model and an assistant so think I'll run that test then.
>
> A frame or two and then just shoot rest on normal shutter.
>
> May try to pre-guess the error like focus on eye and then nose with assistant holding tape.
>
> Cheers
>
> M
>
> --- In MF3D-group@yahoogroups.com, Bob Venezia wrote:
> >
> > Mark,
> >
> > If it will work for you to always shoot in the same setup, you could
> > do what I did. I set up a step ladder (though I could have done it all
> > on the floor, or on a table) and shot an extended tape measure. I was
> > using it to determine DOF for a close up session with a friend. You
> > could then make an indicator on the camera that shows you where to set
> > the focus. And bring your tape measure along to your shoot to place
> > your model at the correct point.
> >
> > Hope that helps.
> >
> > Bob Venezia
> > Seattle, Washington
> >
> >
> > On Aug 21, 2010, at 12:44 AM, Mark wrote:
> >
> > > > Mark
> > > > Are you using the split image or the central ground glass image to
> > >
> > > i believe split image.
> > >
> > > focus, they seem slightly off on mine too. I have never had a
> > > problem though mainly because the largest aperture I have used is
> > > f4.0. I use mine with my vivitar flash indoors at auto f8 and f11
> > > for closeups closer than 1 meter.
> > >
> > > I mix flash and ambient light so I need to get a wide aperture.
> > >
> > > >
> > > > What situations are you using your camera wide open for?
> > >
> > > Mainly low light inside.
> > >
> > > M
> >
>