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Sulliads · 10-05-2011, 03:28 AM

Hi All,
I have a Pentax K100D and when looking through the view finder the view is very dull. I removed the lens and noticed the plastic arm on the vertical rod is all the way up. It moves but does not want to stay down. Is this causing the problem? How do I fix it?

Adam

MysteryOnion · 10-06-2011, 02:53 AM

Do you mean the lever that controls the lens aperture?
If it is sticking out, then it may be broken off... all though I'm guessing, since I can't see it and I'm not figuring which "rod" you mean.

Marc Sabatella · 10-06-2011, 01:55 PM

Dull comparedto other K100D's, or dull compared to the 35mm film cameras of your youth? The latter is normal.

Sulliads · 10-07-2011, 03:22 PM

If you take the lens off there is a silver rod on the left hand side just inside the body of the camera. On this there is a little piece that slides up and down but on my camera it sides but remains in the up position. Dull as in when you look through the viewfinder it is like you are in a darkened room. The shutter is also not openign fully.

MysteryOnion · 10-07-2011, 07:54 PM

Originally posted by First Poster

On this there is a little piece that slides up and down but on my camera it sides but remains in the up position

that does sounds as the "auto-aperture" lever is dead. Your lens in in "stop-down", meaning the aperture is at rest down to the smallest which might be confirmed when you look through the lens and see the 'iris' thing being a tiny hole. Normally the "auto-aperture" function is to hold wide open the 'iris' to allow for bright viewing prior to the picture... a feature since about 1959.

Steve Beswick · 10-09-2011, 11:54 AM

Originally posted by MysteryOnion

that does sounds as the "auto-aperture" lever is dead. Your lens in in "stop-down", meaning the aperture is at rest down to the smallest which might be confirmed when you look through the lens and see the 'iris' thing being a tiny hole. Normally the "auto-aperture" function is to hold wide open the 'iris' to allow for bright viewing prior to the picture... a feature since about 1959.

Actually its closer to 1975, when the K mount was introduced.

SOldBear · 10-09-2011, 10:51 PM

Please read this thread (=> link <=), particularly post #6.

The problem of your camera may be the same.

10-05-2011, 03:28 AM	#1
Sulliads Guest	dull image Hi All, I have a Pentax K100D and when looking through the view finder the view is very dull. I removed the lens and noticed the plastic arm on the vertical rod is all the way up. It moves but does not want to stay down. Is this causing the problem? How do I fix it? Adam

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10-06-2011, 02:53 AM	#2
MysteryOnion Giveaway winner! Join Date: Dec 2007 Location: beantown Photos: Albums Posts: 944	Do you mean the lever that controls the lens aperture? If it is sticking out, then it may be broken off... all though I'm guessing, since I can't see it and I'm not figuring which "rod" you mean.

10-06-2011, 01:55 PM	#3
Marc Sabatella Veteran Member Join Date: Sep 2006 Location: Denver, CO Photos: Gallery Posts: 10,685	Dull comparedto other K100D's, or dull compared to the 35mm film cameras of your youth? The latter is normal.

10-07-2011, 03:22 PM	#4
Sulliads Guest	If you take the lens off there is a silver rod on the left hand side just inside the body of the camera. On this there is a little piece that slides up and down but on my camera it sides but remains in the up position. Dull as in when you look through the viewfinder it is like you are in a darkened room. The shutter is also not openign fully.

10-07-2011, 07:54 PM	#5
MysteryOnion Giveaway winner! Join Date: Dec 2007 Location: beantown Photos: Albums Posts: 944	Originally posted by First Poster On this there is a little piece that slides up and down but on my camera it sides but remains in the up position that does sounds as the "auto-aperture" lever is dead. Your lens in in "stop-down", meaning the aperture is at rest down to the smallest which might be confirmed when you look through the lens and see the 'iris' thing being a tiny hole. Normally the "auto-aperture" function is to hold wide open the 'iris' to allow for bright viewing prior to the picture... a feature since about 1959.

10-09-2011, 11:54 AM	#6
Steve Beswick Veteran Member Join Date: Apr 2009 Location: Ontario, California Photos: Gallery Posts: 1,736	Originally posted by MysteryOnion that does sounds as the "auto-aperture" lever is dead. Your lens in in "stop-down", meaning the aperture is at rest down to the smallest which might be confirmed when you look through the lens and see the 'iris' thing being a tiny hole. Normally the "auto-aperture" function is to hold wide open the 'iris' to allow for bright viewing prior to the picture... a feature since about 1959. Actually its closer to 1975, when the K mount was introduced.

10-09-2011, 10:51 PM	#7
SOldBear Veteran Member Join Date: Feb 2009 Location: Alameda, CA Posts: 3,206	Please read this thread (=> link <=), particularly post #6. The problem of your camera may be the same.

dull image

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