On Mon, Feb 08, 2010 at 08:32:21AM +1000, Tanya Love wrote:
> Aaaaah, got it. Well, that is one THICK manual, and I have only had it for
> 2 days, so it's a lot to absorb and comprehend in that time! (hehe, well,
> that's my excuse and I'm sticking to it!).
>
> Even so, I still think that it is too many modes to offer, and would only
> serve to confuse and slow me down during a shoot. In hindsight, I don't
> think I like the idea of the TAV mode actually, as I don't want to be
> "surprised" at the end of a shoot with images containing too much noise on
> account of being too high an ISO setting without me controlling it.
When you read that manual, you will find you can limit the range of ISO the
camera will set automatically. TAv is probably the mode I use the least, but
sometimes you find that you want to directly control both motion blur and
depth of field. This shot:
<http://www.jfwaf.com/DownTown/image.php?name=image4>
was one of a sequence taken in TAv mode. The skater moved into full
sunlight during the sequence, so I couldn't use a fixed exposure.
This was taken on a trip with a local photo group. Several of the other
photographers were complaining it was all but impossible to take this shot.
They were impressed (and more than a little jealous) when I showed them
that my K10D let me do this, while their "other brand" bodies did not.
> Likewise with Sv mode, as I never change my ISO setting at all on my camera,
> I always leave it at ISO 200, unless I REALLY need it for low light, and
> then I just change it manually and change it back when I am finished, and I
> always like to have control over my aperture and shutter speed and wouldn't
> allow the camera to choose this for me. So, I guess that is two more
> features that will be redundant on me.
As I said elsewhere, it's good to have a camera that suits different styles.
You don't have to use all the modes, but Pentax will sell more cameras if
they can be configured to individual users, rather than only providing the
exposure modes that suit a particular choice of technique.
> Although, at Bruce's suggestion, I may have a play with that green button!
Do that. You may even find that you can delegate one task of adjusting the
exposure to the camera - you decide which two of shutter/aperture/ISO you
want to control, and the camera automatically adjusts the third setting.
You don't have the freedom to control all three yourself, and still get the
exposure right - the laws of physics dictate that. So one of those settings
is going to have to be made based on the values chosen for the other two.
You can let the camera do that - there's no reason for you to spin the dial.
If you are shooting under static lighting conditions you can do it, if you
insist, but I don't see much point. Under dynamic lighting conditions you
run the risk of over- or under- exposing, which leads to blown-out highlights
(which aren't too bad), or noise in the shadows (which *is* bad).
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of John
> Francis
> Sent: Monday, 8 February 2010 8:20 AM
> To: Pentax-Discuss Mail List
> Subject: Re: i'm in luuuuuurv...
>
>
> No - it's exactly the opposite of Sv mode.
>
> In Sv mode you set the ISO (directly, using a thumb wheel, not by drilling
> down into the menu system), and the camera sets the shutter speed and
> aperture.
>
> In TAv you set both the shutter speed and the aperture, and the camera sets
> the ISO to get the exposure right.
>
> This is all explained in the manual
>
>
>
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