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05-06-2016, 05:22 PM   #1
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My K1 fail to shoot with 15/3.5

K1 allowed me to press the shutter on lens with "A" on the aperture ring like a Pentax A* 200/2.8, but when it comes to 15/3.5 which does have a "A" you can focus, can live view, but you cannot press the shutter to shoot, can someone advise ?

---------- Post added 05-06-16 at 05:23 PM ----------

I mean 16/3.5 does NOT have a "A" slot on the aperture ring

05-06-2016, 05:25 PM - 2 Likes   #2
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Change Menu Item 26 'Using Aperture Ring' to 'Enable'.

05-06-2016, 05:31 PM   #3
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You can enable this to work in the custom menu.

Go into the menu, and scroll to the 4th/last tab on the C menu. The last setting on this list is "26 Using Aperture Ring". By default this is set to 1 which does not allow shutter release unless aperture ring is set to A. Set this to "2 Enable". You can now shoot with the aperture ring manually. Obviously you need to also set exposure manually or use the Green.
05-06-2016, 05:35 PM   #4
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And don't forget to turn the focus setting on camera to M. Otherwise camera won't let you take picture unless accurate focusing is achieved.

05-06-2016, 05:40 PM   #5
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Sounds like the focus setting most lkkely. Mine worked fine

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05-06-2016, 06:13 PM   #6
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QuoteOriginally posted by clackers Quote
Change Menu Item 26 'Using Aperture Ring' to 'Enable'.
QuoteOriginally posted by Kennod Quote
You can enable this to work in the custom menu.

Go into the menu, and scroll to the 4th/last tab on the C menu. The last setting on this list is "26 Using Aperture Ring". By default this is set to 1 which does not allow shutter release unless aperture ring is set to A. Set this to "2 Enable". You can now shoot with the aperture ring manually. Obviously you need to also set exposure manually or use the Green.
You guys beat me to it !
To the O.P.: hoping this will help with your dilemma ... and welcome aboard !
05-06-2016, 08:38 PM   #7
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I know that this is on a tangent, but can anyone see a logical reason why Pentax would use this as the default factory setting, rather than setting it enabled? Every time there is a new body, and especially when someone new to Pentax tries to use an old lens, this problem crops up. There is probably 500+ threads on this same topic....

05-06-2016, 08:55 PM   #8
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QuoteOriginally posted by interested_observer Quote
can anyone see a logical reason why Pentax would use this as the default factory setting, rather than setting it enabled?
I know, this is a perplexing habit of pentax that has spanned over several camera bodies. You would think by now they would know people like to use manual lenses on their cameras?

05-06-2016, 09:02 PM   #9
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It's almost as if it's a test. If you know this setting, you probably also know enough to realise stop-down metering is an issue, and can't blame the camera for exposure problems.

It *is* a bit puzzling.
05-06-2016, 11:04 PM   #10
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Thanks for all your advices, will try back home
05-06-2016, 11:28 PM   #11
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To complete the advice, pages 109-110 of the K-1 manual are worth a read. Those pages give more details of how the aperture ring setting works, and how to meter with non-A manual lenses. Plus how to use the very handy Catch-In-Focus feature with manual focus lenses.
05-10-2016, 03:25 PM   #12
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A bigger question is why Pentax even has this menu setting as an option? What harm is it in having the aperture ring enabled all the time?

I end up with that setting the first time I add a lens that needs the aperture ring to the camera. I never turn it back off. Perhaps the more appropriate question is should I ever turn it off?
05-10-2016, 08:50 PM   #13
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QuoteOriginally posted by emalvick Quote
A bigger question is why Pentax even has this menu setting as an option? What harm is it in having the aperture ring enabled all the time?

The best I could speculate is that it doesn't permit a noob with a MF lens to take badly exposed pictures and blame the camera. They have to refer to the manual and see all the steps needed for stop down metering, etc.


Similar with the 1/180 or 1/200 flash sync speed.
05-11-2016, 03:10 PM   #14
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QuoteOriginally posted by clackers Quote
The best I could speculate is that it doesn't permit a noob with a MF lens to take badly exposed pictures and blame the camera. They have to refer to the manual and see all the steps needed for stop down metering, etc.


Similar with the 1/180 or 1/200 flash sync speed.
I should have figured as much.
05-11-2016, 07:10 PM   #15
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Yep...noticed it too right away and went looking for the menu setting to "fix it". I think they keep doing it as a trick to get you to read the damn manual?

You know, I think I may be reading this manual more than with any past bodies......my bet is there is plenty in there I need to know!

Regards!
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