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canonical_url: "https://www.artisantg.com/TestMeasurement/69149-5/ThorLabs-SM1D12C-Ring-Activated-Threaded-Iris-Diaphragms"
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last_updated: "2026-10-01T19:05:39.683-05:00"
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# ThorLabs SM1D12C Ring Activated Threaded Iris Diaphragms

_Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._

## Summary

- Manufacturer: ThorLabs
- Model: SM1D12C
- Condition: Used and in Excellent Condition
- Price: Quote only
- Availability: Not in Stock
- Warranty: 1-Year Warranty with 30-Day Return Guarantee
- ITAR restricted: No
- Shipping weight: 5 lb
- Shipping dimensions: 14X14X6 in

## Categories

- Test Equipment > Optical Test > Optical Parts (primary)

## Details

This unit includes (2) 8mm extenders installed.

## Images

- <https://www.artisantg.com/itemimages/thorlabs_142823_view1.jpg>
- <https://www.artisantg.com/itemimages/thorlabs_142823_view2.jpg>