P: Imacon 3F plugin not working

Michael - I was having the same problem and I think I have diagnosed it and thought I would post here in case it helps anyone else. I noticed that I too could not rename .fff scanner files, nor delete them, nor sometimes open them in Flexcolor. A post above indicated that it was likely a permissions issue/being open somewhere in some other file, so I eventually traced it to likely relating to the Windows 10 'Photos' app and perhaps related to having a preview of the file (i.e. after I had opened a .fff file in Photos and could see the negative, if I closed it in Windows explorer it would show me a preview thumbnail of that photo, but not other 3f photos in the same directory that I hadn't specifically opened in Photos). I then uninstalled Photos app (instructions online) and also made sure to remove thumbnails when using the Disk Cleanup option - and this seems to have resolved the issue - I can now rename, move, delete at my hearts content.

My original post has been merged into this thread and I was referred to J Tanberry's post about a workaround involving renaming the 3f files to .tif.  However, i'm unable to rename the 3f files.  Is there any possibility that because the scans were produced on a Apple computer that this causes problems in Windows 10? 

Renaming files -- Windows won't let me change the name on a 3f to a tif. The File Explorer (Windows 10), freezes and when I come back the name is unchanged.

Adam, the bug was introduced in PS CC 2018, and the workaround you mention was described by mristuccia at the Yahoo Imacon Users forum.

Hasselblad and Adobe have spoken to each other, and the bug was in Photoshop.

Its just to bad that Adobe will not reply and fix this bug. The workaround works, but it is annoying, just like if your car only starts if you had to get out to open and close the hood/bonnet before turning the ignition ;o)

Did a little more digging and found that in the PS Open dialog box, in the Options change “Enable: All Documents” to “Enable: All Readable Documents”, then back to “Enable: All Documents”; also, set “Format: Imacon 3f” to something else, then back to “Format: Imacon 3f”. It is "the secret handshake" but it does work. PS loaded my 3f as a grayscale sRGB image. I assigned "don't color manage", did some cloning and saved. Went over to Flexcolor and was able to open the color scan. All is well... kinda http://www.davidebarranca.com/2013/02/how-to-open-and-retouch-hasselblad-3f-scanner-files-in-photosh...

FYI same problem persists in CC2019. There is an "options" button at the lower left of the "open" dialog box - it brings up the "enable" and "format" options to open a file. The "format" drop down is able to find the 3F plugin but upon trying to open the file a dialog box says to update ACR and includes a weblink. The link shows supported cameras and under the Hasselblad cameras there is an * (** Hasselblad FFF files created by the Hasselblad Phocus software for currently supported models are also supported. FFF files created using the FlexColor software are not supported.) Regardless, I too want to open my scanner 3F files in Photoshop (not ACR) the way I used to. Is this possibly a plugin problem now?

Mr. Jeffrey Tranberry, will there be any solution to this bug? There has been a couple of updates, but none of them have solved this issue.