P mode vs Sv with fixed ISO.

Hidrieus · 12-30-2017, 12:07 PM

In Sv mode I select ISO value and the K-5 choose the appropriate Time and Aperture values. If I select the P mode and do not touch the front and rear wheels and just play with the same ISO values will the results be the same? In both cases I control ISO and the K-5 chooses Time and Aperture values for proper exposure.

**twilhelm** · 12-30-2017, 12:24 PM - **1 Like**

I believe you should, since the camera uses the Program line as a base.

mcgregni · 12-30-2017, 12:24 PM - **1 Like**

I think the results would be the same, but it you want to work like that then Sv mode is the most efficient approach to it. In P mode the 'Program Line' setting may exert a small influence, taking into account the focal length.

Adam · 12-30-2017, 08:53 PM - **1 Like**

Originally posted by Hidrieus

In Sv mode I select ISO value and the K-5 choose the appropriate Time and Aperture values. If I select the P mode and do not touch the front and rear wheels and just play with the same ISO values will the results be the same? In both cases I control ISO and the K-5 chooses Time and Aperture values for proper exposure.

The results should be the same, just a different button/e-dial interface for changing the settings. Sv mode would probably be easier as it would reduce the likelihood of inadvertent changes to the ISO.

Adam
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Hidrieus · 01-01-2018, 11:53 PM

Thank you both for the replies, you clarified this subject for me.

Hidrieus · 01-06-2018, 05:16 AM

Originally posted by mcgregni

I think the results would be the same, but it you want to work like that then Sv mode is the most efficient approach to it. In P mode the 'Program Line' setting may exert a small influence, taking into account the focal length.

I searched a little more the K-5 manual (page 283) and I would like to contribute that in Sv mode also it can the preselected Program Line be used if it is assigned to the green button. So I accept what Adam had said: "The results should be the same, just a different button/e-dial interface for changing the settings".

12-30-2017, 12:07 PM	#1
Hidrieus Senior Member Join Date: Oct 2014 Posts: 211	P mode vs Sv with fixed ISO. In Sv mode I select ISO value and the K-5 choose the appropriate Time and Aperture values. If I select the P mode and do not touch the front and rear wheels and just play with the same ISO values will the results be the same? In both cases I control ISO and the K-5 chooses Time and Aperture values for proper exposure.

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12-30-2017, 12:24 PM - 1 Like	#2
twilhelm Loyal Site Supporter Join Date: Feb 2009 Location: Florida Photos: Gallery \| Albums Posts: 2,355	I believe you should, since the camera uses the Program line as a base.

12-30-2017, 12:24 PM - 1 Like	#3
mcgregni Pentaxian Join Date: Sep 2012 Location: Surrey, England Posts: 2,603	I think the results would be the same, but it you want to work like that then Sv mode is the most efficient approach to it. In P mode the 'Program Line' setting may exert a small influence, taking into account the focal length.

12-30-2017, 08:53 PM - 1 Like	#4
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 49,785	Originally posted by Hidrieus In Sv mode I select ISO value and the K-5 choose the appropriate Time and Aperture values. If I select the P mode and do not touch the front and rear wheels and just play with the same ISO values will the results be the same? In both cases I control ISO and the K-5 chooses Time and Aperture values for proper exposure. The results should be the same, just a different button/e-dial interface for changing the settings. Sv mode would probably be easier as it would reduce the likelihood of inadvertent changes to the ISO. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

01-01-2018, 11:53 PM	#5
Hidrieus Senior Member Join Date: Oct 2014 Posts: 211 Original Poster	Thank you both for the replies, you clarified this subject for me.

01-06-2018, 05:16 AM	#6
Hidrieus Senior Member Join Date: Oct 2014 Posts: 211 Original Poster	Originally posted by mcgregni I think the results would be the same, but it you want to work like that then Sv mode is the most efficient approach to it. In P mode the 'Program Line' setting may exert a small influence, taking into account the focal length. I searched a little more the K-5 manual (page 283) and I would like to contribute that in Sv mode also it can the preselected Program Line be used if it is assigned to the green button. So I accept what Adam had said: "The results should be the same, just a different button/e-dial interface for changing the settings".

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