K5 using an A lens

thegrasshopper · 09-11-2013, 02:22 AM

I have a K5 and would like to trying using a Pentax A lens 28-80mm zoom but need advice as how to reset the camera settngs on the menu. I have no problem with the supplied lens but would like to try this A lens.

Any advice welcome.

Martin

Adam · 09-11-2013, 02:24 AM

Originally posted by thegrasshopper

I have a K5 and would like to trying using a Pentax A lens 28-80mm zoom but need advice as how to reset the camera settngs on the menu. I have no problem with the supplied lens but would like to try this A lens.

Any advice welcome.

Martin

You don't need to change any settings, just make sure you leave the lens's aperture ring set to "A", then fire away

thegrasshopper · 09-11-2013, 02:38 AM

Thanks for the quick reply and gave it a try using the red A setting on the lens but nothing nothing happens......the camera does not even fire.

Martin

thegrasshopper · 09-11-2013, 03:02 AM

Thanks to Adam have got the lens to work on K5 [despite my error reading his advice]..........firing is no problem but can it operate on auto-focus or does manual focus have to be used.

Martin

**rbefly** · 09-11-2013, 03:03 AM

Hello Martin,
Go to Menu, then to 'C' (custom) scroll to # 38 'Using Aperture Ring'. Click on # 2 "permitted'.
Now, whenever you use a manual focus lens, it will ask you for the focal length. Click 'OK' for the length you're using.
This setting won't affect any functions of the AF lenses, leave it on all the time.
Ron
P.S. Just saw your latest post. If it's an 'A" lens, it's auto aperture, manual focus. You can now change the aperture with the thumb wheel, but must focus manually.

thegrasshopper · 09-11-2013, 03:13 AM

Thanks for reply - when the weather imroves I shall give it a try.

Martin

**mattt** · 09-11-2013, 03:30 AM

Check your user manual for Catch In Focus (CIF) - if your camera has it enabled, the shutter will not release unless you have achieved a focus confirmation. Setting the AF-S / AF-C / M switch to M by passes CIF.

thegrasshopper · 09-11-2013, 06:41 AM

Matt, thanks for your answer and help.

Martin

09-11-2013, 02:22 AM	#1
thegrasshopper Inactive Account Join Date: Mar 2012 Posts: 21	K5 using an A lens I have a K5 and would like to trying using a Pentax A lens 28-80mm zoom but need advice as how to reset the camera settngs on the menu. I have no problem with the supplied lens but would like to try this A lens. Any advice welcome. Martin

09-11-2013, 02:24 AM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,609	Originally posted by thegrasshopper I have a K5 and would like to trying using a Pentax A lens 28-80mm zoom but need advice as how to reset the camera settngs on the menu. I have no problem with the supplied lens but would like to try this A lens. Any advice welcome. Martin You don't need to change any settings, just make sure you leave the lens's aperture ring set to "A", then fire away 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:

09-11-2013, 02:38 AM	#3
thegrasshopper Inactive Account Join Date: Mar 2012 Posts: 21 Original Poster	K5 with A lens Thanks for the quick reply and gave it a try using the red A setting on the lens but nothing nothing happens......the camera does not even fire. Martin

09-11-2013, 03:02 AM	#4
thegrasshopper Inactive Account Join Date: Mar 2012 Posts: 21 Original Poster	K5 with A lens Thanks to Adam have got the lens to work on K5 [despite my error reading his advice]..........firing is no problem but can it operate on auto-focus or does manual focus have to be used. Martin

09-11-2013, 03:03 AM	#5
rbefly Site Supporter Join Date: Oct 2009 Location: Denver, Colorado Photos: Albums Posts: 2,030	Manual Focus? Hello Martin, Go to Menu, then to 'C' (custom) scroll to # 38 'Using Aperture Ring'. Click on # 2 "permitted'. Now, whenever you use a manual focus lens, it will ask you for the focal length. Click 'OK' for the length you're using. This setting won't affect any functions of the AF lenses, leave it on all the time. Ron P.S. Just saw your latest post. If it's an 'A" lens, it's auto aperture, manual focus. You can now change the aperture with the thumb wheel, but must focus manually.

09-11-2013, 03:13 AM	#6
thegrasshopper Inactive Account Join Date: Mar 2012 Posts: 21 Original Poster	Maula Focus Thanks for reply - when the weather imroves I shall give it a try. Martin

09-11-2013, 03:30 AM	#7
mattt Site Supporter Join Date: Feb 2011 Location: Niagara Photos: Gallery \| Albums Posts: 3,907	Check your user manual for Catch In Focus (CIF) - if your camera has it enabled, the shutter will not release unless you have achieved a focus confirmation. Setting the AF-S / AF-C / M switch to M by passes CIF.

09-11-2013, 06:41 AM	#8
thegrasshopper Inactive Account Join Date: Mar 2012 Posts: 21 Original Poster	K5 & A lens Matt, thanks for your answer and help. Martin

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