K-x bottom shutter speed setting?

olenl · 09-22-2010, 08:31 PM

Is there way to limit parameter variation in Tv, Av modes? Just like ISO but for other parameters.

For example in Av, I want it to increase ISO instead of setting shutter speed lower than 1/200, but the camera always uses something like 1/60 or 1/100. Now I have to guesstimate ISO for correct shutter in Av mode, which is not convenient since I have to press 'right' button to set ISO, and it's too far from my thumb.

I wish at least green button would allow to get to ISO quickly...

At least, is it easier to achieve this in K-7 ?

hcarvalhoalves · 09-22-2010, 08:55 PM - **1 Like**

Originally posted by olenl

Is there way to limit parameter variation in Tv, Av modes? Just like ISO but for other parameters.

For example in Av, I want it to increase ISO instead of setting shutter speed lower than 1/200, but the camera always uses something like 1/60 or 1/100. Now I have to guesstimate ISO for correct shutter in Av mode, which is not convenient since I have to press 'right' button to set ISO, and it's too far from my thumb.

I wish at least green button would allow to get to ISO quickly...

At least, is it easier to achieve this in K-7 ?

The usage for both Av and Tv is a little different. First, you should pre-select your ISO based on your situation and how you want to control noise (either select a fixed ISO or use the Auto ISO range option). Then you play with aperture or shutter speed accordingly.

This is not different than how it used to be with 35mm film, you had to select your ISO before hand. You don't have to "guesstimate", the ISO is something that normally you have a pre-defined idea, even if you use the Auto ISO range.

Otherwise, use Sv mode.

**TAP** · 09-22-2010, 10:03 PM

Originally posted by hcarvalhoalves

The usage for both Av and Tv is a little different. First, you should pre-select your ISO based on your situation and how you want to control noise (either select a fixed ISO or use the Auto ISO range option). Then you play with aperture or shutter speed accordingly.

This is not different than how it used to be with 35mm film, you had to select your ISO before hand. You don't have to "guesstimate", the ISO is something that normally you have a pre-defined idea, even if you use the Auto ISO range.

Otherwise, use Sv mode.

+1, I agree with hcarvalhoalves. ISO should be determined beforehand.

tomtor · 09-22-2010, 11:17 PM

In the k10/20/7/5 you have a TAv mode in which you choose both f stop and shutter speed and the camera will choose the iso.

09-22-2010, 08:31 PM	#1
olenl Senior Member Join Date: May 2010 Posts: 113	K-x bottom shutter speed setting? Is there way to limit parameter variation in Tv, Av modes? Just like ISO but for other parameters. For example in Av, I want it to increase ISO instead of setting shutter speed lower than 1/200, but the camera always uses something like 1/60 or 1/100. Now I have to guesstimate ISO for correct shutter in Av mode, which is not convenient since I have to press 'right' button to set ISO, and it's too far from my thumb. I wish at least green button would allow to get to ISO quickly... At least, is it easier to achieve this in K-7 ?

09-22-2010, 08:55 PM - 1 Like	#2
hcarvalhoalves Pentaxian Join Date: Aug 2010 Location: São Paulo, Brazil Photos: Gallery Posts: 1,019	Originally posted by olenl Is there way to limit parameter variation in Tv, Av modes? Just like ISO but for other parameters. For example in Av, I want it to increase ISO instead of setting shutter speed lower than 1/200, but the camera always uses something like 1/60 or 1/100. Now I have to guesstimate ISO for correct shutter in Av mode, which is not convenient since I have to press 'right' button to set ISO, and it's too far from my thumb. I wish at least green button would allow to get to ISO quickly... At least, is it easier to achieve this in K-7 ? The usage for both Av and Tv is a little different. First, you should pre-select your ISO based on your situation and how you want to control noise (either select a fixed ISO or use the Auto ISO range option). Then you play with aperture or shutter speed accordingly. This is not different than how it used to be with 35mm film, you had to select your ISO before hand. You don't have to "guesstimate", the ISO is something that normally you have a pre-defined idea, even if you use the Auto ISO range. Otherwise, use Sv mode. Last edited by hcarvalhoalves; 09-22-2010 at 09:28 PM.

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09-22-2010, 10:03 PM	#3
TAP Site Supporter Join Date: Apr 2010 Location: Los Angeles Posts: 121	Originally posted by hcarvalhoalves The usage for both Av and Tv is a little different. First, you should pre-select your ISO based on your situation and how you want to control noise (either select a fixed ISO or use the Auto ISO range option). Then you play with aperture or shutter speed accordingly. This is not different than how it used to be with 35mm film, you had to select your ISO before hand. You don't have to "guesstimate", the ISO is something that normally you have a pre-defined idea, even if you use the Auto ISO range. Otherwise, use Sv mode. +1, I agree with hcarvalhoalves. ISO should be determined beforehand.

09-22-2010, 11:17 PM	#4
tomtor Veteran Member Join Date: Apr 2008 Location: Netherlands Posts: 382	In the k10/20/7/5 you have a TAv mode in which you choose both f stop and shutter speed and the camera will choose the iso.

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