Pentax Stereo Adapter 49mm
Related Faq
Q
Will it fit the Pentax K-m?
A
supported 
Q
does this fit pentax cameras?
A
it depends on the lens size. 
Q
Will this adapter work with canon t6i and smc pentax-m 1:1.4 50mm?
A
No, this is just for the mirrorless canons 
Q
Does external thread have 49mm or 52mm?
A
The filter has an external thread of 49 mm! 
Q
Is this suitable with olympus epl-9 using my pentax bayonet lenses? some lenses have aperture rings.
A
The benefit of this adapter is that it’s suitable for Pentax DA lenses that don’t have an aperture ring. The silver ring on the adapter controls the aperture linkage on the back of the lens. Although a lens might typically have a aperture range of f2.8 to f22, the adapter only has 5 stops, and the real value of the aperture is guesswork, however a mft camera will have no trouble gaining the correct exposure. Lenses with their own aperture ring can still be used on this adapter, you just need to see the adapter to ‘open’. 
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