Hardware testing: other USB Coolscans (LS-40 / Coolscan IV, LS-50 / Coolscan V)

[rohanpandula]

ScanStudio only drives the LS-5000 today. If you have another USB Coolscan — LS-40 (Coolscan IV) or LS-50 (Coolscan V) — the app currently shows you nothing at all, which reads as broken (#14). The next release fixes the silence: your scanner will be detected and named, with an honest "not yet supported". This issue collects the reports that make full support plannable.

Today

1. Confirm what your scanner identifies as:
   • macOS: Apple menu → About This Mac → System Report → USB. Look for the Nikon entry.
   • Linux: lsusb | grep -i 04b0 — LS-40 is 04b0:4000, LS-50 is 04b0:4001.
   • Windows (PowerShell): Get-PnpDevice -PresentOnly | Where-Object InstanceId -like "*VID_04B0*" | Format-List FriendlyName, InstanceId
2. On Windows or Linux, run the nkscan CLI (a separate open-source Coolscan driver with working Coolscan V support; list is read-only): download nkscan-x86_64-pc-windows-msvc.exe or nkscan-x86_64-unknown-linux-musl from the nkscan releases page and run it with list. On Windows the device must be bound to a generic driver first — issue Hardware testing: Windows 11 + LS-5000 (USB) #26 step 2 has the exact VueScan/Zadig instructions.
3. Comment here with: model, firmware revision if you know it, OS, and the outputs from steps 1–2.
4. Coolscan V owners comfortable with a command line: nkscan can actually scan with the V today. If you try it, report your experience on their tracker — that experience maps what full support here needs.

When v0.3.0-beta.2 lands

1. Download the release for your OS, plug in, and confirm ScanStudio now shows your scanner as detected-but-unsupported instead of an empty list. Report if it stays silent.

Full support for these models is a separate future effort and I will not promise a date. This issue is the interest register that helps prioritize it.

---

Using an AI assistant

Copy this block into your assistant (Claude, ChatGPT, etc.) and it will walk you through everything, including submitting:

You are helping me report my Nikon Coolscan (LS-40 / Coolscan IV, or LS-50 /
Coolscan V) for ScanStudio, an open-source scanning app that supports only the LS-5000
today. Ask my OS first, then walk me through:

1. Identify the scanner with it plugged in and powered on:
   - macOS: Apple menu > About This Mac > System Report > USB, find the Nikon entry.
   - Linux: `lsusb | grep -i 04b0` (LS-40 is 04b0:4000, LS-50 is 04b0:4001).
   - Windows PowerShell: Get-PnpDevice -PresentOnly |
     Where-Object InstanceId -like "*VID_04B0*" | Format-List FriendlyName, InstanceId
2. On Windows or Linux only: download the nkscan CLI
   (nkscan-x86_64-pc-windows-msvc.exe or nkscan-x86_64-unknown-linux-musl) from
   https://github.com/activexray/nkscan/releases/latest and run it with list
   (read-only). On Windows the scanner must first be bound to a generic driver —
   follow step 2 of https://github.com/rohanpandula/ScanStudio/issues/26 exactly.

Run only these commands or direct equivalents. Collect full outputs.

Then draft a comment for https://github.com/rohanpandula/ScanStudio/issues/27 with —
Setup (scanner model, firmware if known, OS), Outputs (code blocks), Result. Show me
the draft and do not post without my explicit approval; if you cannot post, format it
so I can paste it myself.

[reiniger2103]

Will my LS40 (USB) will be supported anytime? Very looking forward for this app!

[rohanpandula]

v0.3.0-beta.2 (just out) makes your LS-40 show up by name -- the app will say "LS-40 ED detected, not supported yet" instead of an empty list. thats step one, live now.

actually driving it is a much bigger job and i wont promise a date. the LS-40 is honestly the least mapped of the usb coolscans, even nkscan hasnt started on it. owners showing up here is literally what bumps it up the list, so this counts. if you wanna go further, the steps at the top (confirm the 04b0:4000 id + your firmware) are the next thing. and if you use claude or chatgpt theres a ready-made prompt at the bottom of this issue -- paste it in and itll walk you through the whole check and write the comment for you

[reiniger2103]

USB 3.1 Bus:

Standort-ID: 0x01000000
Verbindungstyp: Built-in
Driver: AppleT8112USBXHCI

LS-40 ED:

Standort-ID: 0x01100000
Verbindungstyp: Removable
Hersteller: Nikon
Seriennummer: 16777215
Link-Geschwindigkeit: 12 Mb/s
USB-Hersteller-ID: 0x04b0
USB-Produkt-ID: 0x4000
USB-Produktversion: 0x0110

[rohanpandula]

perfect, exactly what was needed -- 04b0:4000 confirmed, and the 0x0110 firmware is a useful extra data point. v0.3.0-beta.3 (just out) now shows your LS-40 by name as detected-but-not-supported instead of an empty list: https://github.com/rohanpandula/ScanStudio/releases/tag/v0.3.0-beta.3. youre on the list for when the LS-40 track opens.

[mcwmybn7r8-bit]

LS-50 ED:

Location ID: 0x00141100
USB Vendor ID: 0x04b0
USB Product ID: 0x4001
USB Product Version: 0x0102

Shows as detected but not supported so confirmed behaviour for beta 2.

[shearer]

Setup

• Scanner: Nikon Coolscan V ED (LS-50 ED)
• USB Product Version (bcdDevice): 0x0102
• Firmware version: not queried directly (no read/write tool run — see Result)
• OS: macOS [VERSION — please fill in]

Outputs

system_profiler SPUSBDataType | grep -i -B 2 -A 10 nikon:

LS-50 ED:

  Standort-ID: 0x08330000
  Verbindungstyp: Removable
  Hersteller: Nikon
  Seriennummer: Not Provided
  Link-Geschwindigkeit: 480 Mb/s
  USB-Hersteller-ID: 0x04b0
  USB-Produkt-ID: 0x4001
  USB-Produktversion: 0x0102

Result

macOS System Report confirms the scanner enumerates as a Nikon LS-50 ED with VID 0x04b0 / PID 0x4001, matching the Coolscan V identifiers referenced in this issue. Since nkscan currently only ships Windows/Linux binaries, no --list/read-write test was run on this machine — this comment is limited to USB-level identification on macOS. Happy to run further tests if a macOS build (or equivalent driver-binding steps) becomes available.

[shearer]

Do you need more info to support Coolscan V ED? Can you build in nkscan functions for that?
nkscan works for my V ED.