Av Mode Question

gbclowes · 11-02-2017, 05:56 AM

Hi All,

I just purchased my first prime lens. I went with the work horse Pentax 50mm 1.8 DA lens. My intent is to use this for shooting low light concerts and the like using my K-7.

My issue is this. I have the K-7 in Av mode and set at 1.8 but it appears that the camera displays 2.0 in low light conditions. How can this be? I assumed that setting the aperture in Av mode meant that the aperture remained at the set point.

Cheers,

Geoff

**aslyfox** · 11-02-2017, 07:01 AM

Originally posted by gbclowes

Hi All,

I just purchased my first prime lens. I went with the work horse Pentax 50mm 1.8 DA lens. My intent is to use this for shooting low light concerts and the like using my K-7.

My issue is this. I have the K-7 in Av mode and set at 1.8 but it appears that the camera displays 2.0 in low light conditions. How can this be? I assumed that setting the aperture in Av mode meant that the aperture remained at the set point.

Cheers,

Geoff

have you seen this thread,

AV Mode Issue - PentaxForums.com

it appears to be the answer

11-02-2017, 05:56 AM	#1
gbclowes New Member Join Date: Nov 2017 Location: South Florida Posts: 5	Av Mode Question Hi All, I just purchased my first prime lens. I went with the work horse Pentax 50mm 1.8 DA lens. My intent is to use this for shooting low light concerts and the like using my K-7. My issue is this. I have the K-7 in Av mode and set at 1.8 but it appears that the camera displays 2.0 in low light conditions. How can this be? I assumed that setting the aperture in Av mode meant that the aperture remained at the set point. Cheers, Geoff

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11-02-2017, 07:01 AM	#2
aslyfox Seeker of Knowledge Join Date: Aug 2016 Location: Topeka, Kansas Photos: Gallery \| Albums Posts: 24,583	Originally posted by gbclowes Hi All, I just purchased my first prime lens. I went with the work horse Pentax 50mm 1.8 DA lens. My intent is to use this for shooting low light concerts and the like using my K-7. My issue is this. I have the K-7 in Av mode and set at 1.8 but it appears that the camera displays 2.0 in low light conditions. How can this be? I assumed that setting the aperture in Av mode meant that the aperture remained at the set point. Cheers, Geoff have you seen this thread, AV Mode Issue - PentaxForums.com it appears to be the answer