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**pepperberry farm** · 02-06-2015, 06:01 PM

I was swapping out lenses this afternoon and all of a sudden, the aperture flashes "F- -" and the camera doesn't want to shoot anymore....

WTH?

So, I put the other lens back on the camera - sure enough, it's not the camera but my Sigma 70-300 that is causing the issue...

thanks to this thread:

https://www.pentaxforums.com/forums/172-pentax-k-3/272149-error-f-message-new-tamron-lens.html

I found out that there is a tiny aperture-ring on the Sigma lens and it's touchy.....

and I am reminded, once again, that these forums are near-priceless.....

**sergysergy** · 02-06-2015, 06:06 PM

1st clean the contacts in your lens mount and see if it makes a difference

**pepperberry farm** · 02-06-2015, 06:08 PM

Originally posted by sergysergy

1st clean the contacts in your lens mount and see if it makes a difference

funny thing - that was the FIRST thing I did when I determined it was a specific lens and not the K-50 causing the issue....

**sergysergy** · 02-06-2015, 06:17 PM

Does the Sigma have a ring to select the aperture with an A setting?

**pepperberry farm** · 02-06-2015, 06:18 PM

Originally posted by sergysergy

Does the Sigma have a ring to select the aperture with an A setting?

it does - and that's what I missed.... resetting the aperture ring to 'A' solved the issue....

**sergysergy** · 02-06-2015, 06:19 PM

Ok, there we go

if you have it on anything but A you will see F-- again

---------- Post added 02-06-15 at 06:20 PM ----------

I just re-read the original post and realized you found the solution already...haha

**pepperberry farm** · 02-06-2015, 06:28 PM

Originally posted by sergysergy

Ok, there we go

if you have it on anything but A you will see F-- again

---------- Post added 02-06-15 at 06:20 PM ----------

I just re-read the original post and realized you found the solution already...haha

no sweat - it'll help the next person along....

02-06-2015, 06:01 PM	#1
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,797	F- - message on my K-50 I was swapping out lenses this afternoon and all of a sudden, the aperture flashes "F- -" and the camera doesn't want to shoot anymore.... WTH? So, I put the other lens back on the camera - sure enough, it's not the camera but my Sigma 70-300 that is causing the issue... thanks to this thread: https://www.pentaxforums.com/forums/172-pentax-k-3/272149-error-f-message-new-tamron-lens.html I found out that there is a tiny aperture-ring on the Sigma lens and it's touchy..... and I am reminded, once again, that these forums are near-priceless.....

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02-06-2015, 06:06 PM	#2
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,176	1st clean the contacts in your lens mount and see if it makes a difference

02-06-2015, 06:08 PM	#3
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,797 Original Poster	Originally posted by sergysergy 1st clean the contacts in your lens mount and see if it makes a difference funny thing - that was the FIRST thing I did when I determined it was a specific lens and not the K-50 causing the issue....

02-06-2015, 06:17 PM	#4
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,176	Does the Sigma have a ring to select the aperture with an A setting?

02-06-2015, 06:18 PM	#5
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,797 Original Poster	Originally posted by sergysergy Does the Sigma have a ring to select the aperture with an A setting? it does - and that's what I missed.... resetting the aperture ring to 'A' solved the issue....

02-06-2015, 06:19 PM	#6
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,176	Ok, there we go if you have it on anything but A you will see F-- again ---------- Post added 02-06-15 at 06:20 PM ---------- I just re-read the original post and realized you found the solution already...haha

02-06-2015, 06:28 PM	#7
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,797 Original Poster	Originally posted by sergysergy Ok, there we go if you have it on anything but A you will see F-- again ---------- Post added 02-06-15 at 06:20 PM ---------- I just re-read the original post and realized you found the solution already...haha no sweat - it'll help the next person along....

F- - message on my K-50

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