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01-23-2010, 05:28 PM   #1
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Lack of TAv on the Kx...has it affected you as a user?

having TAv is pretty useful for me when shooting sports especially in venues where the light is uneven.

01-23-2010, 06:10 PM   #2
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I rarely shoot sports (mostly landscapes and cityscapes), but I used a K10D for 3 years before it died and I replaced it with the K-x a couple of months ago. Have taken about a 1,000 shots with the K-x and haven't missed the TAv mode, but then I didn't use it much on the K10D.
01-23-2010, 07:03 PM   #3
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Can honestly so I've never touched it on my K10, so don't miss it. Read about it, but never really got the point of it. But again, not a sports shooter.
01-24-2010, 02:33 AM   #4
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All I need is Av, M, and B. X is nice, but not entirely necessary.

Tv, Sv, TAv, and whatever else there is.....nope. I don't use them.

01-24-2010, 03:14 AM   #5
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When you like "manual" with auto-iso (=TAv), then you will most certainly miss it when it is no longer available.
When you don't "think" that way, it's a moot point.
01-24-2010, 03:15 AM   #6
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I have never used TAv, but I frequenty find myself wanting Auto ISO in M mode (to fix the shutter speed and control the DoF at the same time).

Last edited by jerrymouse; 01-24-2010 at 03:29 AM. Reason: typo
01-24-2010, 03:39 AM   #7
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I used TAv lasty year for all U7 soccer matches (after the first match). I would miss in if I was using a K-x for this purpose.

Dan.
01-24-2010, 05:16 AM   #8
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QuoteOriginally posted by jerrymouse Quote
I have never used TAv, but I frequenty find myself wanting Auto ISO in M mode (to fix the shutter speed and control the DoF at the same time).
That is exactly what TAv is.

01-24-2010, 05:21 AM   #9
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Right on... I thought I was the only person noticing the Kx does not have this mode!!

At first, on the K10D, i thought this mode was a gimmick... but after trying it under the right conditions (it is "M" with AUTO-ISO) and it works great!!


Ironically, I am missing it a LOT more with the Kx than I ever used on the K10D, and the reason is very simple: the K10D ISO max at 800 (for me) and if I was shoooting in low-light, the TAv would not help too much..

Now when using the Kx, the ISO range is much better, but the key point is that I obviously dont want to lock it at 6400 (or 3200) if there is a chance 1600 could work on some shots... So yeah, TAv in the Kx would help a LOT!!!
01-24-2010, 05:23 AM   #10
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What is a TAv mode?
isnt it just a Tv - shutter priority
and Av - aperture priority
01-24-2010, 06:28 AM   #11
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yeah the lack of TAv is annoying... there is no reason for it to be missing either. You should be able to press the +- button to swap what the dial does, which it is already doing but your stuck between exposure compensation and the other option. (depending on if its tv or av mode your in)

I just use manual or av instead now... with auto iso in av it makes little difference.

or if its a bright day just use M mode at 200iso

but despite there being plenty of work arounds... why exclude it?!
01-24-2010, 08:35 AM   #12
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QuoteOriginally posted by rustynail925 Quote
What is a TAv mode?
isnt it just a Tv - shutter priority
and Av - aperture priority
TAv is Manual mode with Auto ISO. In low light, I like to determine the minimum aperture and shutter speed I'm willing to live with (e.g FA 50mm lens, f/2.8 and 1/25s). The camera then chooses the ISO needed for the shot. I've seen it vary from ISO 800 to ISO 3200 in the same room.

Yes, I miss having TAv on the K-x. The K-x makes decisions in Av and Tv modes that I disagree with, so I use Av with manual ISO and let the camera determine the shutter speed. I have to watch that the shutter speed doesn't get too extravagant. In TAv I can simply forget about the camera settings and concentrate on composition and photo opportunities.

Last edited by audiobomber; 01-24-2010 at 09:54 AM.
01-24-2010, 09:19 AM   #13
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An exposure is dependant of three factors:
Aperture value, shutter speed and ISO speed.

It is correct that TAv mode is Aperture and shutter priority at the same time. This means that you set both the shutter and aperture. So what is left for the camera to set in order to get a correct exposure? Well, the ISO of course!

So you set aperture and the shutter, and the camera selects an ISO value that gives a correct exposure with your selected aperture and shutter.

But it is much easier to explain this as a manual mode with auto ISO, because that is exactly what this is.
01-25-2010, 10:46 AM   #14
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I think Its better to use the M mode than TAv mode
01-25-2010, 10:53 AM   #15
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I miss it - a lot.

It would be particularly useful because the KX has such a wide range of acceptable ISOs. When shooting family indoors, I could leave the flash off, set an acceptable shutter speed (1/60, perhaps), and an aperture that provides enough DOF (5.6?).

Using Av, the KX sometimes selects speeds that simply are not fast enough for moving kids or my shaking hands. I think I've seen as low as 1/15. That's not OK.

TAv was perfect, for me at least. I'd like to have it available, at least as a menu option. Or did I miss something in the manual?
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