0.5mm/1mm M54 Spacer

$7.59 ~~$11~~ In stock

Category: Part

0.5mm/1mm Spacer is designed for those who have vary strict requirments of back focal length of the optical system. Combined with our Adapter Kits, the spacer can be used for precise adjustment.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy

If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy

Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy

Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Hazel F. ★★★★★ Oct 21, 2026

Putting the 0.5mm spacer between my lens and adapter fixed my infinity focus perfectly, it's a tiny piece but makes a huge difference. The brass construction feels precise and solid in hand.

Benjamin ★★★★★ Oct 20, 2026

The 0.5mm and 1mm options in one set are perfect for dialing in back focal length without ordering multiple parts. I used the thinner one to nudge the focus just right, and it seated cleanly with my adapter kit. Felt precise and solid, no play at all.

James ★★★★★ Oct 18, 2026

I needed to fine-tune the back focus on my adapter kit, and these spacers let me dial it in exactly. The 0.5mm and 1mm options give just enough flexibility without being bulky.