Lenses w/o an A - how to get the shutter working

Iowa Tom · 08-11-2008, 04:06 PM

I want to use my K20D to "try" to capture some meteors tonight. I put my old Vivitar Series-1, f 1.9, 28 mm on the camera but cannot get the shutter to go off, even on manual. I find the instructions having to do with this are not user friendly because of all the insets between ( ) stuck here and there and everywhere. Very hard to make sense of it.

Please help.

Thanks!

morfic · 08-11-2008, 04:09 PM

look at your custom function one relates to the aperture ring, allow firing with it and off you go

Iowa Tom · 08-11-2008, 04:17 PM

Originally posted by morfic

look at your custom function one relates to the aperture ring, allow firing with it and off you go

Where do I find the custom function one?

séamuis · 08-11-2008, 04:34 PM

Menu button>C Custom Setting>using aperture ring>2 permitted.

Marc Sabatella · 08-11-2008, 04:56 PM

Originally posted by Iowa Tom

Where do I find the custom function one?

Not "custom function one ...", but rather "custom function. One ...". That is, it isn't the first custom function, but further down the list.

You also need to know that the camera cannot read the aperture ring, so you have to shoot in M mode. Use the green button to get the camera to stop down momentarily, meter, and set an appropriate shutter speed. Or hold the DOF preview knob as long as you like, watch the meter display, and adjust the shutter speed and//or aperture.

Iowa Tom · 08-11-2008, 04:58 PM

Originally posted by séamuis

Menu button>C Custom Setting>using aperture ring>2 permitted.

Man I had to go through all the steps to get to the one I needed.

I was afraid that I had gone through them all and was starting over but it finally came up.

I got it to work. Thanks!

cupic · 08-11-2008, 06:33 PM

Thanks also I had a problem as well thanks to you and Mechanik

cheers

morfic · 08-11-2008, 06:34 PM

Originally posted by Marc Sabatella

Not "custom function one ...", but rather "custom function. One ...". That is, it isn't the first custom function, but further down the list.

You also need to know that the camera cannot read the aperture ring, so you have to shoot in M mode. Use the green button to get the camera to stop down momentarily, meter, and set an appropriate shutter speed. Or hold the DOF preview knob as long as you like, watch the meter display, and adjust the shutter speed and//or aperture.

sorry, bad punctuation on my part, it's actually quicker to get there going up in the menu

i answered from my cell phone while waiting at a walgreens, but hey, i scored some Milka while there, so it was worth it!

cupic · 08-11-2008, 06:39 PM

Does it have to be disabled when going back to AF lenses

cheers

Mechan1k · 08-11-2008, 06:45 PM

Originally posted by cupic

Does it have to be disabled when going back to AF lenses

cheers

Nope ... just leave it as permitted and all lenses work

SpecialK · 08-11-2008, 06:55 PM

Quote:

Nope ... just leave it as permitted and all lenses work

I wonder why Pentax requires you to even set it, since once it is set, it works either way.

**janosh** · 08-11-2008, 09:15 PM

Originally posted by SpecialK

I wonder why Pentax requires you to even set it, since once it is set, it works either way.

They sell new lenses, not used ones

AVANT · 08-11-2008, 10:27 PM

Originally posted by SpecialK

I wonder why Pentax requires you to even set it, since once it is set, it works either way.

If you used A lens or later, it is to make sure your lens is in the Auto position so you won't accidentally take pictures with bad exposure (better for the less knowledgeable user or if you don't own any manual aperture lens).

JohnV3 · 08-12-2008, 12:46 PM

I'm repeating what I said in some recent threads. For the green button to work properly with an M lens, item #26 in the custom menu, "Green button in TAv & M" must be set to #2"Tv shift". This allows the shutter to be adjusted for the proper exposure. The other setting choices don't adjust the shutter.

Also, the shutter will not release if the camera is set to AF when using a manual focus lens.

Marc Sabatella · 08-12-2008, 12:52 PM

Originally posted by JohnV3

Also, the shutter will not release if the camera is set to AF when using a manual focus lens.

Unless the camera thinks the picture is actually in focus - when the confirmation light is on, you can shoot. But I'd prefer switching to MF mode anyhow - the confirmation light still comes on, but I can shoot when I want to shoot.

08-11-2008, 04:06 PM	#1
Iowa Tom New Member Join Date: Aug 2008 Location: Waterloo, Iowa Posts: 24	Lenses w/o an A - how to get the shutter working I want to use my K20D to "try" to capture some meteors tonight. I put my old Vivitar Series-1, f 1.9, 28 mm on the camera but cannot get the shutter to go off, even on manual. I find the instructions having to do with this are not user friendly because of all the insets between ( ) stuck here and there and everywhere. Very hard to make sense of it. Please help. Thanks!

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08-11-2008, 04:09 PM	#2
morfic Veteran Member Join Date: Feb 2008 Location: San Antonio, TX Photos: Gallery Posts: 428	look at your custom function one relates to the aperture ring, allow firing with it and off you go

08-11-2008, 04:17 PM	#3
Iowa Tom New Member Join Date: Aug 2008 Location: Waterloo, Iowa Posts: 24 Original Poster	Originally posted by morfic look at your custom function one relates to the aperture ring, allow firing with it and off you go Where do I find the custom function one?

08-11-2008, 04:34 PM	#4
séamuis Banned Join Date: Oct 2007 Location: Savannah, U.S./Baguio City, P.H. Posts: 5,979	Menu button>C Custom Setting>using aperture ring>2 permitted.

08-11-2008, 04:56 PM	#5
Marc Sabatella Veteran Member Join Date: Sep 2006 Location: Denver, CO Photos: Gallery Posts: 10,685	Originally posted by Iowa Tom Where do I find the custom function one? Not "custom function one ...", but rather "custom function. One ...". That is, it isn't the first custom function, but further down the list. You also need to know that the camera cannot read the aperture ring, so you have to shoot in M mode. Use the green button to get the camera to stop down momentarily, meter, and set an appropriate shutter speed. Or hold the DOF preview knob as long as you like, watch the meter display, and adjust the shutter speed and//or aperture.

08-11-2008, 04:58 PM	#6
Iowa Tom New Member Join Date: Aug 2008 Location: Waterloo, Iowa Posts: 24 Original Poster	Originally posted by séamuis Menu button>C Custom Setting>using aperture ring>2 permitted. Man I had to go through all the steps to get to the one I needed. I was afraid that I had gone through them all and was starting over but it finally came up. I got it to work. Thanks!

08-11-2008, 06:33 PM	#7
cupic Veteran Member Join Date: Apr 2008 Location: Australia-NSW Photos: Gallery Posts: 4,824	Thanks also I had a problem as well thanks to you and Mechanik cheers

08-11-2008, 06:34 PM	#8
morfic Veteran Member Join Date: Feb 2008 Location: San Antonio, TX Photos: Gallery Posts: 428	Originally posted by Marc Sabatella Not "custom function one ...", but rather "custom function. One ...". That is, it isn't the first custom function, but further down the list. You also need to know that the camera cannot read the aperture ring, so you have to shoot in M mode. Use the green button to get the camera to stop down momentarily, meter, and set an appropriate shutter speed. Or hold the DOF preview knob as long as you like, watch the meter display, and adjust the shutter speed and//or aperture. sorry, bad punctuation on my part, it's actually quicker to get there going up in the menu i answered from my cell phone while waiting at a walgreens, but hey, i scored some Milka while there, so it was worth it!

08-11-2008, 06:39 PM	#9
cupic Veteran Member Join Date: Apr 2008 Location: Australia-NSW Photos: Gallery Posts: 4,824	Does it have to be disabled when going back to AF lenses cheers

08-11-2008, 06:45 PM	#10
Mechan1k Veteran Member Join Date: Jun 2007 Location: Sydney, Australia Posts: 2,891	Originally posted by cupic Does it have to be disabled when going back to AF lenses cheers Nope ... just leave it as permitted and all lenses work

08-11-2008, 06:55 PM	#11
SpecialK Pentaxian Join Date: Dec 2006 Location: So California Photos: Gallery Posts: 16,480	Quote: Nope ... just leave it as permitted and all lenses work I wonder why Pentax requires you to even set it, since once it is set, it works either way.

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08-11-2008, 09:15 PM	#12
janosh Site Supporter Join Date: Jul 2008 Location: Albuquerque, NM Posts: 243	Originally posted by SpecialK I wonder why Pentax requires you to even set it, since once it is set, it works either way. They sell new lenses, not used ones

08-11-2008, 10:27 PM	#13
AVANT Veteran Member Join Date: Jun 2007 Location: California Posts: 426	Originally posted by SpecialK I wonder why Pentax requires you to even set it, since once it is set, it works either way. If you used A lens or later, it is to make sure your lens is in the Auto position so you won't accidentally take pictures with bad exposure (better for the less knowledgeable user or if you don't own any manual aperture lens).

08-12-2008, 12:46 PM	#14
JohnV3 Senior Member Join Date: Jan 2007 Location: Phoenix, AZ USA Posts: 165	I'm repeating what I said in some recent threads. For the green button to work properly with an M lens, item #26 in the custom menu, "Green button in TAv & M" must be set to #2"Tv shift". This allows the shutter to be adjusted for the proper exposure. The other setting choices don't adjust the shutter. Also, the shutter will not release if the camera is set to AF when using a manual focus lens.

08-12-2008, 12:52 PM	#15
Marc Sabatella Veteran Member Join Date: Sep 2006 Location: Denver, CO Photos: Gallery Posts: 10,685	Originally posted by JohnV3 Also, the shutter will not release if the camera is set to AF when using a manual focus lens. Unless the camera thinks the picture is actually in focus - when the confirmation light is on, you can shoot. But I'd prefer switching to MF mode anyhow - the confirmation light still comes on, but I can shoot when I want to shoot.