Tamron Adaptall Lenses
Posted 20/01/2013 - 22:27 - Helpful Comment
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The main mechanical difference between Adaptall '1' and Adaptall-2 mounts is that the Adaptall-2 lenses have the functionality to indicate their maximum aperture to Adaptall-2 mounts, whereas Apatall '1' lenses do not.
As I understand it, this doesn't affect us Pentax users, so we can use Adaptall '1' and 2 lenses and mounts completely interchangeably. I've happily used my Adaptall-2 PK/A mount with Adaptall '1' lenses.
The Adaptall '1' series had a PK mount only (labelled PK/M) which was equivalent to a Pentax M lens (green button metering required). The PK/A mount was introduced in the Adaptall-2 range and gave functionality equivalent to a Pentax A series lens allowing the control of aperture from the camera body.
I believe that for more 'complex' mounts, like Canon FD, it is only possible to use Adaptall-2 mounts correctly with Adaptall-2 lenses.
As I understand it, this doesn't affect us Pentax users, so we can use Adaptall '1' and 2 lenses and mounts completely interchangeably. I've happily used my Adaptall-2 PK/A mount with Adaptall '1' lenses.
The Adaptall '1' series had a PK mount only (labelled PK/M) which was equivalent to a Pentax M lens (green button metering required). The PK/A mount was introduced in the Adaptall-2 range and gave functionality equivalent to a Pentax A series lens allowing the control of aperture from the camera body.
I believe that for more 'complex' mounts, like Canon FD, it is only possible to use Adaptall-2 mounts correctly with Adaptall-2 lenses.
Posted 20/01/2013 - 23:30
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Thanks. I was confused by people advertising PK/M mounts as Adaptall 2. Leading me think Adaptall was something different again, with less function than you get with PK/M mounts.
Barrie - Too Old To Die Young
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Posted 21/01/2013 - 10:48
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bforbes wrote:
Thanks. I was confused by people advertising PK/M mounts as Adaptall 2. Leading me think Adaptall was something different again, with less function than you get with PK/M mounts.
The majority of Adaptall-2 adapters for pentax are PK mounts - only giving M type functionality. Changing the adapter to the more expensive/rare PKA version enables the extra functions. I suspect most of the ads you refer to include the PK mount, but as they can be changed to PKA mount (or numerous other mounts) they have more function than a fixed PK.
Thanks. I was confused by people advertising PK/M mounts as Adaptall 2. Leading me think Adaptall was something different again, with less function than you get with PK/M mounts.
Mike
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Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.
.[size=11:].Flickr• WPF• Panoramio
.
Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.
.[size=11:].Flickr• WPF• Panoramio
Posted 21/01/2013 - 11:03
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I have both PK/M and PK/A mounts and was aware of the extra functions. It seems it's more correct to call the PK/M mount - Adaptall and the PK/A mount - Adaptall 2. Or do you think there is a separate "Adaptall 1" mount?
Again not counting the Adapt-A-Matic system.
Again not counting the Adapt-A-Matic system.
Barrie - Too Old To Die Young
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Posted 21/01/2013 - 11:40
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This one on ebay, doesn't say Adaptall 2 on the main name
just Adaptall Custom Mount, but it does say it's suitable
for Adaptall and Adaptall 2 so it must have come out after
the release of Adaptall 2 lenses and because it isn't called 2
I would expect that it's the same as the original.
I don't really trust the Adaptall 2 PKA mount adjusting
the aperture properly from the body, so I don't mind
using the KM mount.
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just Adaptall Custom Mount, but it does say it's suitable
for Adaptall and Adaptall 2 so it must have come out after
the release of Adaptall 2 lenses and because it isn't called 2
I would expect that it's the same as the original.
I don't really trust the Adaptall 2 PKA mount adjusting
the aperture properly from the body, so I don't mind
using the KM mount.
-
Half Man... Half Pentax ... Half Cucumber
Pentax K-1 + K-5 and some other stuff
Algi
Pentax K-1 + K-5 and some other stuff
Algi
Posted 21/01/2013 - 12:53
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bforbes wrote:
I have both PK/M and PK/A mounts and was aware of the extra functions. It seems it's more correct to call the PK/M mount - Adaptall and the PK/A mount - Adaptall 2. Or do you think there is a separate "Adaptall 1" mount?
Again not counting the Adapt-A-Matic system.
I think it is more the case that the Tamron *lenses* adaptall 1 or adaptall 2. Both Adaptall 1 and 2 lenses can use either PK or PK/A adapters and I believe the simpler PK adapter continued to be produced long after the Adaptall 2 lenses appeared.
I have both PK/M and PK/A mounts and was aware of the extra functions. It seems it's more correct to call the PK/M mount - Adaptall and the PK/A mount - Adaptall 2. Or do you think there is a separate "Adaptall 1" mount?
Again not counting the Adapt-A-Matic system.
Posted 21/01/2013 - 13:02
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Algernon wrote:
I don't really trust the Adaptall 2 PKA mount adjusting
the aperture properly from the body, so I don't mind
using the KM mount.
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In which case I'd be happy to offer a swap of my original PK mount for your PK/A one
I don't really trust the Adaptall 2 PKA mount adjusting
the aperture properly from the body, so I don't mind
using the KM mount.
-
Posted 21/01/2013 - 13:04
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The PK/A mount is a status symbol
Half Man... Half Pentax ... Half Cucumber
Pentax K-1 + K-5 and some other stuff
Algi
Pentax K-1 + K-5 and some other stuff
Algi
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6913 posts
17 years
Co. Durham UK
For instance can you still use the green button or do you have to stop the lens down manually after focusing wide open?
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/