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05-08-2011, 10:12 AM   #16
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That's not quite true. Some of the SMC lenses retained the "all metal" construction throughout their lifespan. Whilst it is true to say that if they had the rubber grip, they must be SMC lenses, the opposite is not true. The early SMC lenses had the metal grip and the meter coupling. Probably to use up existing stock, the aperture linkage was added the the super multi coated Taks and the labelling was changed to SMC somewhere along the way.

Kim

QuoteOriginally posted by kcobain1992 Quote
I think you got that on the opposite, Super-Multi-Coated had the same body as the Super, and SMC had rubberized focusing ring. But my lens is Super-Multi-Coated and still has that aperture linkage.


05-08-2011, 11:34 AM   #17
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QuoteOriginally posted by Kim C Quote
That's not quite true. Some of the SMC lenses retained the "all metal" construction throughout their lifespan. Whilst it is true to say that if they had the rubber grip, they must be SMC lenses, the opposite is not true. The early SMC lenses had the metal grip and the meter coupling. Probably to use up existing stock, the aperture linkage was added the the super multi coated Taks and the labelling was changed to SMC somewhere along the way.

Kim
And to complicate things, there were even a few of the late Super Taks that got the linkages for the open aperture metering. I have a ST 55/1.8 like that. There are examples of other focal lengths of ST with the lugs mentioned in Gerjan's book as well.
05-08-2011, 01:23 PM   #18
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I've just noticed another thing. Your lens has the part number 37902. That is the part number Pentax gave to the 50/1.4 Super Multi Coated Taks. The 50/1.4 SMC Taks had the part number 37908

Kim

QuoteOriginally posted by kcobain1992 Quote
I think you got that on the opposite, Super-Multi-Coated had the same body as the Super, and SMC had rubberized focusing ring. But my lens is Super-Multi-Coated and still has that aperture linkage.
05-08-2011, 01:32 PM   #19
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You mean that my lens is one of the last 10 in its series?

05-08-2011, 02:15 PM   #20
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Gerjan also says:

S-T 55/2, some with light meter coupling, came on SP500, part number on diaphragm switch is 37107.

S-T 55/1.8 (II) later production have light meter coupling, no multi-coats.

S-M-C T 55/1.8 early production have no light meter coupling.

QuoteOriginally posted by kcobain1992 Quote
You mean that my lens is one of the last 10 in its series?
The number on the back of the diaphragm switch is the Asahi part number not serial number.

Last edited by rhodopsin; 05-08-2011 at 02:22 PM.
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