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Monreal1969 · 12-02-2015, 11:21 AM

Hello everyone,

I'm new to the forum and would love some help.

I have a Pentax Spotmatic F and it's absolutely gorgeous.

My question is I inherited some older Vivitar M42 Mount lens and was wondering if they work with the Spotmatic?

I was told the lens will work but not allow open aperture metering and I will need to stop down - not sure what that means.

Any help/education would be awesome.

Thanks in advance,
John

**Canada_Rockies** · 12-02-2015, 11:28 AM

The M42 lens will mount on the Spotmatic, but it needs to have a pin in the back of the mount that will allow the lever in the camera to stop the lens down. If the lens has an Auto/Manual switch on it, it will stop down when the switch is marked as Auto. When it is set to manual, the lens stops down as you turn the aperture ring.

bertwert · 12-02-2015, 12:29 PM

Welcome to the forum!

**Kerrowdown** · 12-02-2015, 01:32 PM

Welcome to the forum, enjoy all it has to offer.

**bobbotron** · 12-02-2015, 02:44 PM

Welcome! Another Spotmatic F owner, great camera. Look forward to see what you get up to with the camera!

debakarma · 12-02-2015, 07:27 PM

Welcome to the forum.

aacjr · 12-02-2015, 10:26 PM

Welcome... Nice to see you here.

Monreal1969 · 12-03-2015, 06:40 AM

Originally posted by bertwert

Welcome to the forum!

Thank you.

---------- Post added 12-03-15 at 06:41 AM ----------

Originally posted by aacjr

Welcome... Nice to see you here.

Thank you.

---------- Post added 12-03-15 at 06:42 AM ----------

Originally posted by Canada_Rockies

The M42 lens will mount on the Spotmatic, but it needs to have a pin in the back of the mount that will allow the lever in the camera to stop the lens down. If the lens has an Auto/Manual switch on it, it will stop down when the switch is marked as Auto. When it is set to manual, the lens stops down as you turn the aperture ring.

Thank you. 1 of the lens has the pin the other 2 do not.
Now I understand.
Thanks in advance.
John

---------- Post added 12-03-15 at 06:43 AM ----------

Originally posted by Kerrowdown

Welcome to the forum, enjoy all it has to offer.

Thank you.

---------- Post added 12-03-15 at 06:44 AM ----------

Originally posted by debakarma

Welcome to the forum.

Thank you.

---------- Post added 12-03-15 at 06:44 AM ----------

Originally posted by bobbotron

Welcome! Another Spotmatic F owner, great camera. Look forward to see what you get up to with the camera!

Thank you.

12-02-2015, 11:21 AM	#1
Monreal1969 Inactive Account Join Date: Dec 2015 Location: Mamaroneck, NY Posts: 2	Spotmatic F and Vivitar Lens Hello everyone, I'm new to the forum and would love some help. I have a Pentax Spotmatic F and it's absolutely gorgeous. My question is I inherited some older Vivitar M42 Mount lens and was wondering if they work with the Spotmatic? I was told the lens will work but not allow open aperture metering and I will need to stop down - not sure what that means. Any help/education would be awesome. Thanks in advance, John

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12-02-2015, 11:28 AM	#2
Canada_Rockies Loyal Site Supporter Join Date: Nov 2007 Location: Sparwood, BC, Canada Photos: Gallery \| Albums Posts: 12,385	The M42 lens will mount on the Spotmatic, but it needs to have a pin in the back of the mount that will allow the lever in the camera to stop the lens down. If the lens has an Auto/Manual switch on it, it will stop down when the switch is marked as Auto. When it is set to manual, the lens stops down as you turn the aperture ring.

12-02-2015, 12:29 PM	#3
bertwert Veteran Member Join Date: Jun 2015 Location: Golden, BC Posts: 15,172	Welcome to the forum!

12-02-2015, 01:32 PM	#4
Kerrowdown PEG Moderator Join Date: Aug 2008 Location: Highlands of Scotland... "Hold Infinity in the palm of your hand" - William Blake Photos: Gallery Posts: 57,867	Welcome to the forum, enjoy all it has to offer.

12-02-2015, 02:44 PM	#5
bobbotron Site Supporter Join Date: Jan 2015 Location: Ottawa, ON Photos: Gallery Posts: 3,349	Welcome! Another Spotmatic F owner, great camera. Look forward to see what you get up to with the camera!

12-02-2015, 07:27 PM	#6
debakarma Veteran Member Join Date: Mar 2014 Photos: Gallery \| Albums Posts: 1,294	Welcome to the forum.

12-02-2015, 10:26 PM	#7
aacjr Veteran Member Join Date: Feb 2015 Location: San Francisco Bay Area Posts: 446	Welcome... Nice to see you here.

12-03-2015, 06:40 AM	#8
Monreal1969 Inactive Account Join Date: Dec 2015 Location: Mamaroneck, NY Posts: 2 Original Poster	Originally posted by bertwert Welcome to the forum! Thank you. ---------- Post added 12-03-15 at 06:41 AM ---------- Originally posted by aacjr Welcome... Nice to see you here. Thank you. ---------- Post added 12-03-15 at 06:42 AM ---------- Originally posted by Canada_Rockies The M42 lens will mount on the Spotmatic, but it needs to have a pin in the back of the mount that will allow the lever in the camera to stop the lens down. If the lens has an Auto/Manual switch on it, it will stop down when the switch is marked as Auto. When it is set to manual, the lens stops down as you turn the aperture ring. Thank you. 1 of the lens has the pin the other 2 do not. Now I understand. Thanks in advance. John ---------- Post added 12-03-15 at 06:43 AM ---------- Originally posted by Kerrowdown Welcome to the forum, enjoy all it has to offer. Thank you. ---------- Post added 12-03-15 at 06:44 AM ---------- Originally posted by debakarma Welcome to the forum. Thank you. ---------- Post added 12-03-15 at 06:44 AM ---------- Originally posted by bobbotron Welcome! Another Spotmatic F owner, great camera. Look forward to see what you get up to with the camera! Thank you.

Spotmatic F and Vivitar Lens

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