Pentax LX metering question

infrar3d · 07-20-2021, 09:50 AM

Does anyone know if the LX will meter with adapted lenses? Or does it need a lens that engages the aperture prong properly, like every other manual-focus Pentax I've used.

stevebrot · 07-20-2021, 10:38 AM

Originally posted by infrar3d

Does anyone know if the LX will meter with adapted lenses? Or does it need a lens that engages the aperture prong properly, like every other manual-focus Pentax I've used.

Do you have a copy of the manual? It is available free from the Pentax Manuals site:

Pentax Manuals | Manual Focus

Metering with adapted M42 lenses is the same as for other aperture-priority or manual exposure Pentax film cameras in that the lens must be stopped down for both metering and exposure.

Steve

infrar3d · 07-20-2021, 10:53 AM

Thanks for that, Steve. I do have a copy of the manual. I've never used an M42 adapter, and I'm not clear if the LX would also work that way for non-M42 lenses. I'm thinking specifically of my Lensbaby Composer. It doesn't meter with my ME or K1000.

**RuiC** · 07-20-2021, 01:29 PM - **1 Like**

Originally posted by infrar3d

Thanks for that, Steve. I do have a copy of the manual. I've never used an M42 adapter, and I'm not clear if the LX would also work that way for non-M42 lenses. I'm thinking specifically of my Lensbaby Composer. It doesn't meter with my ME or K1000.

If you use it in Automatic exposure the camera is metering in real time from the film reflection so it should be an easy operation.

infrar3d · 07-20-2021, 03:41 PM

That's what I suspected. Thanks.

07-20-2021, 09:50 AM	#1
infrar3d New Member Join Date: Sep 2009 Posts: 19	Pentax LX metering question Does anyone know if the LX will meter with adapted lenses? Or does it need a lens that engages the aperture prong properly, like every other manual-focus Pentax I've used.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Off-the-film metering after the Pentax LX	filmamigo	Film SLRs and Compact Film Cameras	11	01-03-2020 10:19 AM
LX. Viewfinder metering question.	Kalki	Film SLRs and Compact Film Cameras	3	04-30-2014 05:57 PM
K-7 CW metering vs Matrix metering	raider	Pentax DSLR Discussion	11	09-26-2011 02:03 AM

07-20-2021, 10:38 AM	#2
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by infrar3d Does anyone know if the LX will meter with adapted lenses? Or does it need a lens that engages the aperture prong properly, like every other manual-focus Pentax I've used. Do you have a copy of the manual? It is available free from the Pentax Manuals site: Pentax Manuals \| Manual Focus Metering with adapted M42 lenses is the same as for other aperture-priority or manual exposure Pentax film cameras in that the lens must be stopped down for both metering and exposure. Steve

07-20-2021, 10:53 AM	#3
infrar3d New Member Join Date: Sep 2009 Posts: 19 Original Poster	Thanks for that, Steve. I do have a copy of the manual. I've never used an M42 adapter, and I'm not clear if the LX would also work that way for non-M42 lenses. I'm thinking specifically of my Lensbaby Composer. It doesn't meter with my ME or K1000.

07-20-2021, 01:29 PM - 1 Like	#4
RuiC Site Supporter Join Date: Jan 2009 Location: Lisboa - The best destination in Europe Posts: 633	Originally posted by infrar3d Thanks for that, Steve. I do have a copy of the manual. I've never used an M42 adapter, and I'm not clear if the LX would also work that way for non-M42 lenses. I'm thinking specifically of my Lensbaby Composer. It doesn't meter with my ME or K1000. If you use it in Automatic exposure the camera is metering in real time from the film reflection so it should be an easy operation.

07-20-2021, 03:41 PM	#5
infrar3d New Member Join Date: Sep 2009 Posts: 19 Original Poster	That's what I suspected. Thanks.