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stefanor · 09-24-2016, 10:46 PM

I just bought a K1 with a 31mm, camera and the lens are gorgeous but I have a serious problem with the autofocus. I simply can not change from MF to AF. The display, even though I hold down the AF mode button and turn the reel, remains on MF. I moved the switch on the body from MF to AF. The lens aperture is on A.
Furthermore the camera meter only in spot mode other modes are dimmed

I also tried without the lens ... nothing changes

I would be grateful if you could give me some ideas or advice.

Class A · 09-24-2016, 10:58 PM

If you cannot check another lens on the K-1 or test the FA 31 on another camera, I think you are stuck with respect to further trouble shooting.

Have you checked the contacts on the mount of the lens?
If you bought the lens used then perhaps try cleaning the contacts with a microfibre cloth. The "A" pin on the lens mount should stick out a bit (the corresponding contact on the camera's mount is referred to as the "*" contact in the last diagram of Bojidar Dimitrov's KA mount explanation).

You could try a factory reset of the K-1 (-> custom functions), but I don't have any hope that this will help.

Adam · 09-25-2016, 12:18 AM

Sounds like a bad connection to the lens. Try cleaning the contacts and see if that helps. Sometimes you have to wiggle the lens in place, too, if it isn't fully engaged.

stefanor · 09-25-2016, 12:30 AM

Thanks for the answer. Both the K1 and the 31mm are brand new and the problem came out since the first time I assembled camera and lens ... I have the impression that I was very unlucky, unfortunately I have no other lens to test.
I'm going to take camera and lens for warranty service

Last edited by stefanor; 09-25-2016 at 12:36 AM.

**ffking** · 09-25-2016, 01:34 AM

Originally posted by stefanor

I'm going to take camera and lens for warranty service

Did you buy online or from a store? 'm sure a store would let you test the body with another lens

stefanor · 09-25-2016, 01:45 AM

Originally posted by ffking

'm sure a store would let you test the body with another lens

Yes I'm sure too, tomorrow morning I'go to the store.

Class A · 09-25-2016, 06:23 AM

Originally posted by stefanor

Yes I'm sure too, tomorrow morning I'go to the store.

Good luck!

P.S.: Am I wrong in expecting that the store should just replace the faulty lens or camera? If you have to send it in for a warranty repair, you might as well could have bought from an online shop, no?

**Riggomatic** · 09-25-2016, 06:47 AM

I believe an exchange would not be an unreasonable request.

stefanor · 09-25-2016, 06:56 AM

Originally posted by Class A

If you have to send it in for a warranty repair, you might as well could have bought from an online shop, no?

right ... i will ask for an exchange

thaks again everybody

stefanor · 09-26-2016, 03:59 AM

The problem was the lens. Replaced immediately, everything ended well.

thanks

Class A · 09-26-2016, 04:39 AM

Originally posted by stefanor

The problem was the lens. Replaced immediately, everything ended well.

Awesome!

Have fun with your lens and camera!

It is such a great combination.

**ffking** · 09-26-2016, 04:42 AM

Originally posted by stefanor

The problem was the lens. Replaced immediately, everything ended well.

thanks

Great - thanks for reporting back - now the fun begins, as Class A says

stefanor · 09-26-2016, 05:23 AM

Yes !! now the fun begin.

I hope to take advantage of this amazing camera and lens

I also hope to be able to show you some decent image

09-24-2016, 10:46 PM	#1
stefanor Junior Member Join Date: Sep 2016 Posts: 33	AF issue I just bought a K1 with a 31mm, camera and the lens are gorgeous but I have a serious problem with the autofocus. I simply can not change from MF to AF. The display, even though I hold down the AF mode button and turn the reel, remains on MF. I moved the switch on the body from MF to AF. The lens aperture is on A. Furthermore the camera meter only in spot mode other modes are dimmed I also tried without the lens ... nothing changes I would be grateful if you could give me some ideas or advice.

09-25-2016, 12:18 AM	#3
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,609	Sounds like a bad connection to the lens. Try cleaning the contacts and see if that helps. Sometimes you have to wiggle the lens in place, too, if it isn't fully engaged. 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 purchasing one of our Pentax eBooks. 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:

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09-24-2016, 10:58 PM	#2
Class A Pentaxian Join Date: Aug 2008 Location: Wellington, New Zealand Posts: 11,251	If you cannot check another lens on the K-1 or test the FA 31 on another camera, I think you are stuck with respect to further trouble shooting. Have you checked the contacts on the mount of the lens? If you bought the lens used then perhaps try cleaning the contacts with a microfibre cloth. The "A" pin on the lens mount should stick out a bit (the corresponding contact on the camera's mount is referred to as the "*" contact in the last diagram of Bojidar Dimitrov's KA mount explanation). You could try a factory reset of the K-1 (-> custom functions), but I don't have any hope that this will help.

09-25-2016, 12:30 AM	#4
stefanor Junior Member Join Date: Sep 2016 Posts: 33 Original Poster	Thanks for the answer. Both the K1 and the 31mm are brand new and the problem came out since the first time I assembled camera and lens ... I have the impression that I was very unlucky, unfortunately I have no other lens to test. I'm going to take camera and lens for warranty service Last edited by stefanor; 09-25-2016 at 12:36 AM.

09-25-2016, 01:34 AM	#5
ffking Site Supporter Join Date: Nov 2015 Location: Old South Wales Posts: 6,039	Originally posted by stefanor I'm going to take camera and lens for warranty service Did you buy online or from a store? 'm sure a store would let you test the body with another lens

09-25-2016, 01:45 AM	#6
stefanor Junior Member Join Date: Sep 2016 Posts: 33 Original Poster	Originally posted by ffking 'm sure a store would let you test the body with another lens Yes I'm sure too, tomorrow morning I'go to the store.

09-25-2016, 06:23 AM	#7
Class A Pentaxian Join Date: Aug 2008 Location: Wellington, New Zealand Posts: 11,251	Originally posted by stefanor Yes I'm sure too, tomorrow morning I'go to the store. Good luck! P.S.: Am I wrong in expecting that the store should just replace the faulty lens or camera? If you have to send it in for a warranty repair, you might as well could have bought from an online shop, no?

09-25-2016, 06:47 AM	#8
Riggomatic Loyal Site Supporter Join Date: Nov 2014 Location: Auburn, Indiana Photos: Albums Posts: 3,886	I believe an exchange would not be an unreasonable request.

09-25-2016, 06:56 AM	#9
stefanor Junior Member Join Date: Sep 2016 Posts: 33 Original Poster	Originally posted by Class A If you have to send it in for a warranty repair, you might as well could have bought from an online shop, no? right ... i will ask for an exchange thaks again everybody

09-26-2016, 03:59 AM	#10
stefanor Junior Member Join Date: Sep 2016 Posts: 33 Original Poster	The problem was the lens. Replaced immediately, everything ended well. thanks

09-26-2016, 04:39 AM	#11
Class A Pentaxian Join Date: Aug 2008 Location: Wellington, New Zealand Posts: 11,251	Originally posted by stefanor The problem was the lens. Replaced immediately, everything ended well. Awesome! Have fun with your lens and camera! It is such a great combination.

09-26-2016, 04:42 AM	#12
ffking Site Supporter Join Date: Nov 2015 Location: Old South Wales Posts: 6,039	Originally posted by stefanor The problem was the lens. Replaced immediately, everything ended well. thanks Great - thanks for reporting back - now the fun begins, as Class A says

09-26-2016, 05:23 AM	#13
stefanor Junior Member Join Date: Sep 2016 Posts: 33 Original Poster	Yes !! now the fun begin. I hope to take advantage of this amazing camera and lens I also hope to be able to show you some decent image

AF issue

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