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**ASA32** · 05-22-2013, 10:03 AM

New 645 shooter with 67 experience asks, "In trying out the above with a P67 lens, it looks like the tubes must be set on Manual to get a proper exposure. Is that correct?"

Thanks!

desertscape · 05-22-2013, 03:15 PM

Metering must be done with the lens set to Manual position.

**ASA32** · 05-23-2013, 07:16 AM

Originally posted by desertscape

Metering must be done with the lens set to Manual position.

When you say the lens must be set to Manual, do you mean the lever on the extension tube? Sorry if I'm missing something, but the lens I'm using is a manual focus P67 105mm f/2.4.

Again, thank you.

Rob

desertscape · 05-23-2013, 01:57 PM

The Auto Tubes for the 67 allow the diaphragm to stop down to the shooting aperture when the lens auto-manual lever is used in the AUTO position. But to get a correct meter reading, the lens auto- manual lever must be on manual. This is for use on a 67. With your adapter on a 645, I would say meter and shoot with the lens auto-manual lever on manual. I am not familiar with any manual setting on the tubes.

Last edited by desertscape; 05-23-2013 at 02:04 PM.

**ASA32** · 05-24-2013, 09:27 AM

What a kind and helpful reply, thank you!

Of course the lever is on the lens, not the tube. What was I thinking...if anything!?

05-22-2013, 10:03 AM	#1
ASA32 Site Supporter Join Date: Apr 2013 Location: Southeastern Connecticut Posts: 39	P645NII, 67>645 Adapter, 67 Auto Extension Tubes? New 645 shooter with 67 experience asks, "In trying out the above with a P67 lens, it looks like the tubes must be set on Manual to get a proper exposure. Is that correct?" Thanks!

05-23-2013, 07:16 AM	#3
ASA32 Site Supporter Join Date: Apr 2013 Location: Southeastern Connecticut Posts: 39 Original Poster	Originally posted by desertscape Metering must be done with the lens set to Manual position. When you say the lens must be set to Manual, do you mean the lever on the extension tube? Sorry if I'm missing something, but the lens I'm using is a manual focus P67 105mm f/2.4. Again, thank you. Rob Last edited by ASA32; 05-23-2013 at 07:23 AM.

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05-22-2013, 03:15 PM	#2
desertscape Pentaxian Join Date: Feb 2009 Location: Arizona Posts: 1,271	Metering must be done with the lens set to Manual position.

05-23-2013, 01:57 PM	#4
desertscape Pentaxian Join Date: Feb 2009 Location: Arizona Posts: 1,271	The Auto Tubes for the 67 allow the diaphragm to stop down to the shooting aperture when the lens auto-manual lever is used in the AUTO position. But to get a correct meter reading, the lens auto- manual lever must be on manual. This is for use on a 67. With your adapter on a 645, I would say meter and shoot with the lens auto-manual lever on manual. I am not familiar with any manual setting on the tubes. Last edited by desertscape; 05-23-2013 at 02:04 PM.

05-24-2013, 09:27 AM	#5
ASA32 Site Supporter Join Date: Apr 2013 Location: Southeastern Connecticut Posts: 39 Original Poster	What a kind and helpful reply, thank you! Of course the lever is on the lens, not the tube. What was I thinking...if anything!?

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P645NII, 67>645 Adapter, 67 Auto Extension Tubes?

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