Is this a Pentax mount....I HOPE.

neverbnnba · 07-06-2010, 09:22 PM

i picked up a super cheap old lens on shopgoodwill.com for $6 and I hope it's a pentax screw mount. If not I'll just use it on a 4/3rds body or something. shopgoodwill.com - #6405718 - Promaster Spectrum 7 1:4~5.6 70-210mm Camera Lens - 7/6/2010 10:06:18 AM

KxBlaze · 07-06-2010, 09:35 PM

Looks like a M42 to me.

**Lowell Goudge** · 07-07-2010, 04:45 AM

It looks like an M42 mount, so you will need to get an M42 to K mount adaptor

Also, it looks like an auto only lens, so you may need to force the aperture to stop down, by modifying the pin actuator.

I generally do this by taking the mount off the lens, and placing a spacer between the base of the mount and the lever the little pin pushes on, The perfect spacer is about 1/8 inch of refil tubing from a ball point pen.

there are threads on this mod, and it is removable if you want to resell the lens at some time.

Others have indicated that for $20 you can get an M42 mount that has a flange to activate this pin in the UK

neverbnnba · 07-08-2010, 11:33 AM

wow lowell thanks man! That's a mod I have to try!

07-06-2010, 09:22 PM	#1
neverbnnba New Member Join Date: May 2010 Location: Lexington, Kentucky Photos: Albums Posts: 24	Is this a Pentax mount....I HOPE. i picked up a super cheap old lens on shopgoodwill.com for $6 and I hope it's a pentax screw mount. If not I'll just use it on a 4/3rds body or something. shopgoodwill.com - #6405718 - Promaster Spectrum 7 1:4~5.6 70-210mm Camera Lens - 7/6/2010 10:06:18 AM

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07-06-2010, 09:35 PM	#2
KxBlaze Veteran Member Join Date: Feb 2010 Location: California Photos: Gallery Posts: 1,602	Looks like a M42 to me.

07-07-2010, 04:45 AM	#3
Lowell Goudge Site Supporter Join Date: Jan 2007 Location: Toronto Photos: Gallery \| Albums Posts: 17,891	It looks like an M42 mount, so you will need to get an M42 to K mount adaptor Also, it looks like an auto only lens, so you may need to force the aperture to stop down, by modifying the pin actuator. I generally do this by taking the mount off the lens, and placing a spacer between the base of the mount and the lever the little pin pushes on, The perfect spacer is about 1/8 inch of refil tubing from a ball point pen. there are threads on this mod, and it is removable if you want to resell the lens at some time. Others have indicated that for $20 you can get an M42 mount that has a flange to activate this pin in the UK

07-08-2010, 11:33 AM	#4
neverbnnba New Member Join Date: May 2010 Location: Lexington, Kentucky Photos: Albums Posts: 24 Original Poster	wow lowell thanks man! That's a mod I have to try!