K-mount adapters for Pentax new-mount cameras

Started 11 months ago | Discussions thread
Barry Pearson
OP Barry Pearson Veteran Member • Posts: 8,723
New-mount-camera + K-mount-adapter = K-mount-camera

A (hypothetical) Pentax new-mount mirrorless FF camera-back plus a good K-mount adapter would functionally be a K-mount camera. It would accept K-mount lenses, whether made by Pentax or 3rd-parties.

I start this thread to emphasise the importance for any camera manufacturer that releases a new-mount mirrorless camera to release an SLR-mount adapter at the same time.

Canon have done so. (In fact, 3 such adapters).
Nikon have done so.

If Pentax releases a (hypothetical) new-mount mirrorless camera, Pentax must release a K-mount adapter at the same time.

Acceptance of the existence of such an adapter, and agreement that such a combination would indeed functionally be a K-mount camera, will enable discussions here to be more constructive.

There are two obvious characteristics of a "new-mount mirrorless camera plus a K-mount adapter" compared to a "K-mount SLR":

It will be mirrorless, not an SLR!
It can be converted into a new-mount camera by removing the adapter.

There several other likely differences:

It will be lighter.
It will be quieter.
There will be no need for lens fine-adjustments.
It will have less "shock".
It will have shorter loss of vision between shots in burst mode.
It may have more viewfinder information.
There may be adapters with extra features.
(Plus others)

Some people prefer the optical view of SLRs.
Some people prefer the view via EVFs.
Some people seek better options than either of these.

Some useful links:

Summary of "adapters" @ 2018-09-08

Update to "adapters" @ 2018-09-09

Comparing weights with Pentax cameras

Speculation: a combined adapter and teleconverter

about lenses and new mounts

Why mirrorless? Here's a partial list, excluding video-related reasons

 Barry Pearson's gear list:Barry Pearson's gear list
Ricoh WG-6 Panasonic LX100 Ricoh GR III Pentax K-7 Pentax K-3 II +27 more
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