Cloud Break Optics

Felstein #4 Wide Mount to T Thread Adapter (TCD0008)

Felstein #4 Wide Mount to T Thread Adapter (TCD0008) - Main image
$111.6 $155 In stock

Category: Astrophotography Accessories

The Felstein #4 Wide Mount to T Thread Adapter (TCD0008) is an astrophotography accessory that adapts from 72 mm Takahashi wide threads to a T-thread. The adapter ends in a male T-thread.

  • Brand: Takahashi
  • Adapter type: Wide Mount to T Thread
  • Connects 72 mm Takahashi wide threads to a T-thread
  • Male T-thread on the adapter end
  • SKU: TCD0008
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 (4.2 / 5 · 5 reviews)

Evelyn N. ★★★★★

The threading is silky smooth when I screw it onto my scope, and the fit to my camera’s T-ring is snug with zero wobble. It does exactly what it says—adapts from the 72 mm wide threads to a male T-thread without any fuss.

Leo U. ★★★★★

I was worried about adapter play causing tilt, but this one locks down solid with no wiggle at all. The threads are smooth and it screws onto my reducer perfectly.

William ★★★★★

Finally got the spacing I needed to reach focus with my scope — the 72mm wide thread side mates perfectly and the male T-thread end is machined clean, no wobble at all. Screwed on and off smoothly the first time, which is more than I can say for some adapters I've wrestled with.