Originally posted by MichaelErlewine However, although I have all the right adapters for bellows work, the lenses I really want to work with, like the El Nikkor 105mm APO lens, and other exotic lenses, really don’t work...
These lenses that don’t talk with the Pentax K1 are displayed in LiveView with their apertures always wide-open
have you actually confirmed that the aperture is held wide open, by looking into the end of the lens? how would the camera physically control that, on that lens?
because what it sounds like you are seeing is liveview that is not wysiwyg(what you see is what you get)... wysiwyg has nothing to do with the lens at all, and having liveview does not mean that the camera has wysiwyg capability.
the constant preview effect that john flores describes is not wysiwyg either, it's only a simulation, but it's much closer to what you want, and it could be sufficient for your needs.
what needs to happen in this thread is to work towards what biz engineer posted: "The K1 should be configured to display exposure and/or histogram in live view"... even if it's only a simulation of the actual exposure, and not true wysiwyg.
Originally posted by MichaelErlewine with no ability to modify the shutter and have it modify the light in LiveView, and the only way to darken the image is to use a higher aperture, which of course I don’t want to do. The aperture I want is, well, the aperture (and DOF) I want to use for the photo, etc.
a true wysiwyg display will show both the dof and the actual exposure of the shot, instead of simulating the exposure in the monitor, having to use some stupid dof preview button, etc... it works perfectly with legacy glass on my sony a7r, because that camera has wysiwyg capability, but unfortunately there is no pixel-shift capability... i think that i understand what you are looking for here, and why it matters.