Metabones Speed Booster for Pentax K lenses?

Started Apr 14, 2013 | Discussions thread
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Re: No speedbooster for Pentax lenses ;(...
In reply to Ari Aikomus, Apr 15, 2013

Ari Aikomus wrote:

Ayoh wrote:

Ari Aikomus wrote:


Has anyone heard if the Metabones would be planned speedbooster adapter for Pentax K lenses? For example Pentax K--> NEX speedbooster ?

I was forced to purchase Metabones' speedbooster for Contax/Yashica (C/Y) --> NEX adapter , because it was the only way to get my M42 lenses to work with speedbooster. But you can't adapt Pentax K lenses that way.

There are already quite a few of the old lens mount supported, but not Pentax - which I think is a bit odd.

I also know that Canon FD and Sony Alpha mount are coming later this year...

-- hide signature --
- Ari Aikomus -
'Why should I feel lonely ? is not our planet in the Milky way?'

Why not ask the designer, Brian Caldwell, himself:

If you find something out please report back.

I wrote Metabones to enquire about a Pentax K to NEX adapter and this is the response:

Sorry! We have not planning to make a Pentax (speed booster)…..
Thank you!

Do not get them. There's a lot of Pentax K FF lenses on the planet...


-- hide signature --
- Ari Aikomus -
'Why should I feel lonely ? is not our planet in the Milky way?'

Could be due to a technical limitation due to potential interference from the protruding aperture lever in K lenses. Nikon lenses have a similar lever and a nikon adapter is not listed on the webpage either.

An EF speedbooster with a EF-K adapter should work anyway, just temporarily remove the aperture lever if there is interference (the lever can be unscrewed on most pentax lenses).

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