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07-06-2019, 07:43 PM   #1
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645Z telephoto lenses

I am looking for a high quality telephoto lens for my 645Z...100mm min 300mm max
Also some advice as to what third party lenses work with the 645Z with AF and the different mounting systems

07-06-2019, 08:29 PM   #2
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While it does not meet your criteria for focal length, I can highly recommend the SMC Pentax-FA 645 150-300mm F5.6 ED [IF]. I have used this lens extensively and find it to be very good.
07-06-2019, 08:51 PM   #3
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AFAIK there are no third party or adaptable lenses with AF for the 645. However, here's a list of lenses around your range:

Pentax 645 Lenses between 100mm and 400mm with Autofocus |

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07-07-2019, 12:39 PM   #4
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Last year I picked up a 300mm f/5.6 FA lens for my 645z -- works well, isn't too heavy, and autofocus works well despite the f/5.6 maximum aperture. Was only US$359 from a Japanese seller over eBay.


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