Sears lens naming

notsowise · 09-03-2010, 12:31 PM

I have Sears 60-300mm 1:4.0-5.6 lens. The aperature ring has the letters PU on it. Do you know what that might mean. Do I set it as a manual lens and can I use green button. The camera is an Pentax K-x. This is a M42 mount wiyh adaptor.
Jan

Last edited by notsowise; 09-03-2010 at 01:35 PM.

Adam · 09-03-2010, 12:34 PM

I've moved your post to a separate thread in the lens section. Please don't hijack articles with unrelated questions.

I don't know what the letters PU could mean, but unless there's an A setting beyond the minimum aperture setting, then it's a manual-aperture lens.

JeffJS · 09-03-2010, 12:36 PM

Originally posted by notsowise

I have Sears 60-300mm 1:4.0-5.6 lens. The aperature ring has the letters PU on it. Do you know what that might mean. Do I set it as a manual lens and can I use green button. The camera is an Pentax K-x.
Jan

Ummmmm, If you haven't already, Don't mount that lens on your camera. It could get stuck. Do a search on the Ricoh pin to learn more about it. I've never owned one so I cannot help with your actual question.

stevebrot · 09-03-2010, 12:49 PM

By any chance is the lens thread mount? In that case, "PU" might mean "Pentax Universal"...or it might also just mean that it smells bad.

Steve

sherwood · 09-03-2010, 01:00 PM

Originally posted by stevebrot

By any chance is the lens thread mount? In that case, "PU" might mean "Pentax Universal"...or it might also just mean that it smells bad.

Steve

notsowise · 09-05-2010, 10:25 PM

Well it don't smell bad, and It is an M42 screw mount. I have had it on the K-x using an adaptor and it works fine, and I have had it off several times. Itook this night before last!

JeffJS · 09-06-2010, 04:58 AM

Originally posted by notsowise

Well it don't smell bad, and It is an M42 screw mount. I have had it on the K-x using an adaptor and it works fine, and I have had it off several times. Itook this night before last!

Some of the K mount versions of these lenses Do get stuck on the camera. The M42 Sears lenses are an entirely different animal.

Nice shot of the kitty!

notsowise · 09-07-2010, 07:33 AM

Originally posted by JeffJS

Some of the K mount versions of these lenses Do get stuck on the camera. The M42 Sears lenses are an entirely different animal.

Nice shot of the kitty!

Thanks
Looks like I have a winer with the Sears lens.
PU does mean Pentax universal!

09-03-2010, 12:31 PM	#1
notsowise Inactive Account Join Date: Jul 2010 Location: Pocahontas, Arkansas Photos: Gallery \| Albums Posts: 52	Sears lens naming I have Sears 60-300mm 1:4.0-5.6 lens. The aperature ring has the letters PU on it. Do you know what that might mean. Do I set it as a manual lens and can I use green button. The camera is an Pentax K-x. This is a M42 mount wiyh adaptor. Jan Last edited by notsowise; 09-03-2010 at 01:35 PM.

09-03-2010, 12:34 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	I've moved your post to a separate thread in the lens section. Please don't hijack articles with unrelated questions. I don't know what the letters PU could mean, but unless there's an A setting beyond the minimum aperture setting, then it's a manual-aperture lens. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

09-05-2010, 10:25 PM	#6
notsowise Inactive Account Join Date: Jul 2010 Location: Pocahontas, Arkansas Photos: Gallery \| Albums Posts: 52 Original Poster	Well it don't smell bad, and It is an M42 screw mount. I have had it on the K-x using an adaptor and it works fine, and I have had it off several times. Itook this night before last! Attached Images

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09-03-2010, 12:36 PM	#3
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484	Originally posted by notsowise I have Sears 60-300mm 1:4.0-5.6 lens. The aperature ring has the letters PU on it. Do you know what that might mean. Do I set it as a manual lens and can I use green button. The camera is an Pentax K-x. Jan Ummmmm, If you haven't already, Don't mount that lens on your camera. It could get stuck. Do a search on the Ricoh pin to learn more about it. I've never owned one so I cannot help with your actual question.

09-03-2010, 12:49 PM	#4
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	By any chance is the lens thread mount? In that case, "PU" might mean "Pentax Universal"...or it might also just mean that it smells bad. Steve

09-03-2010, 01:00 PM	#5
sherwood Forum Member Join Date: Aug 2010 Location: Belgium Photos: Albums Posts: 60	Originally posted by stevebrot By any chance is the lens thread mount? In that case, "PU" might mean "Pentax Universal"...or it might also just mean that it smells bad. Steve

09-06-2010, 04:58 AM	#7
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484	Originally posted by notsowise Well it don't smell bad, and It is an M42 screw mount. I have had it on the K-x using an adaptor and it works fine, and I have had it off several times. Itook this night before last! Some of the K mount versions of these lenses Do get stuck on the camera. The M42 Sears lenses are an entirely different animal. Nice shot of the kitty!

09-07-2010, 07:33 AM	#8
notsowise Inactive Account Join Date: Jul 2010 Location: Pocahontas, Arkansas Photos: Gallery \| Albums Posts: 52 Original Poster	Originally posted by JeffJS Some of the K mount versions of these lenses Do get stuck on the camera. The M42 Sears lenses are an entirely different animal. Nice shot of the kitty! Thanks Looks like I have a winer with the Sears lens. PU does mean Pentax universal!