P: Dedicated Keyboard shortcut for Zoom to Fit

I currently use a Behringer X-Touch Mini (USAB-Midi Controller). Alongside a shareware app called Midi2LR.

It took a while to setup but most actions can be completed just using the assignable buttons and a built in layer function in the software.

For 65 bucks for an open box item on Ebay I got a great deal and pretty much fully functional Midi control in a small footprint. I would reccomend it. Absent Adobe implementing a Midi learning tool this I think is the best option.

Yes, i long ago added a feature request to implement a midi layer across all Adobe apps to allow for a simple "right-click, learn midi" option, but we all know that will never happen. It's nice to dream though.

I wrote this inquirey specifically for Midi input users, as I control Lightroom with an X-Touch mini. But having rechecked all the ways I can configure the interation it seems I had my zoom buttonb set to zoom less.. which for somw reason started recording every level of zoom thus forgetting the FIT setting. I have now set my zoom button to ZOOM IN and my zoom out button to Toggle Enable/Dis Able. Zoom. It now appears to work as you my friends have stated. Unfortunately we have to rely on 3rd party developers to do anything Midi.. But thanks all for your concern and instruction.  

I'm seeing the same behavior as @johnrellis on my Windows 10 system with LrC 11.2. Try resetting your LrC preferences file as detailed in the below article. It can resolve many unexplained issues. Place a copy of the current Preferences file on your desktop so it can be easily restored if the issue persists.

https://www.lightroomqueen.com/how-do-i-reset-lightrooms-preferences/

"So if you zoom in to look at an area and then zoom a bit more, the space bar just goes back one level of zooming. LR remembers the last two zoom levels in sequence."

Hmm, I observe different behavior. When I zoom in multiple times, space always take me back to Fit. Here's a screen recording showing that, using all the different ways of zooming: The Navigator menu, the slider in the toolbar, box zoom (Ctrl/Cmd while dragging out a box), and scrubby zoom (Shift while dragging mouse left and right).

https://www.dropbox.com/s/feg3n5k10ukbjl1/zoom-back-fit.2022.04.09.mp4?dl=0

I wonder what accounts for the difference in behavior? Maybe post a screen recording so we can see precisely how your LR is behaving?

Nope.. The Space bar returns you to the last zoom state. So if you zoom in to look at an area and then zoom a bit more, the space bar just goes back one level of zooming. LR remembers the last two zoom levels in sequence. There is no shortcut directly back to FIT unless that was the last level.

"it would be great to have a keyboard shortcut available that returns us directly to FIT no matter how much zooming around one has done."

I think I'm misunderstanding -- doesn't the space key do that?

Yes, for some silly reason, the Lr devs decided that the classic Adobe zoom to fit keystroke (cmd/ctrl-0) will be used for displaying the histogram instead of Fit. It's really frustrating because cmd/opt-0 works for 1:1, so they're halfway there.