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11-22-2008, 10:27 AM   #1
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MBrannon's Avatar

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Location: Clearwater, FL
Posts: 135
Using a Teleconverter with M42 lenses

Hello all,

I hope this isn't a dumb question, but I was wondering if a modern k-mount teleconverter could be used with M42 screwmount lenses. In other words, attaching the M42 adapter to the lens, and connecting that into a tele, and the tele into the camera. Is there enough clearance to do this, or can you only use the M42 adapter straight into the camera body? I'm thinking mainly of a promaster 1.7x. Any help would be appreciated.

Thanks

11-22-2008, 10:50 AM   #2
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Big Dave's Avatar

Join Date: Jan 2008
Location: San Antonio, Texas
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Posts: 547
Since the converter has a female bayonet, just like the camera body, a K-mount adapter will work just fine. If you use an adapter with a flange that covers the bayonet, you won't have infinity focus. Have fun.

Dave

QuoteOriginally posted by MBrannon Quote
Hello all,

I hope this isn't a dumb question, but I was wondering if a modern k-mount teleconverter could be used with M42 screwmount lenses. In other words, attaching the M42 adapter to the lens, and connecting that into a tele, and the tele into the camera. Is there enough clearance to do this, or can you only use the M42 adapter straight into the camera body? I'm thinking mainly of a promaster 1.7x. Any help would be appreciated.

Thanks
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