Cloud Break Optics

30mm Long 42mm Extension Tube (SFE-M42-030)

30mm Long 42mm Extension Tube (SFE-M42-030) - Main image
$11.4 $19 In stock

Category: Astrophotography Accessories

Description

This is a 42 mm extension tube that adds 30 mm of length. The outside diameter is 1.8". The male thread is just over 3 mm long and the female thread is about 27.6 mm deep. 

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)

James Q. ★★★★★

Slapped this on my telescope to get my camera sensor farther out, and the extra 30mm made all the difference for reaching focus on my nebula shots. The male threads are short but catch cleanly, no wobble at all when I tightened it down.

Eva ★★★★★

The female thread is impressively deep at nearly 28mm, which gives my camera side a very snug, wobble-free grip. I just wish the outer knurling was a touch more aggressive for gloved hands, but the added 30mm of length works perfectly for closer focusing.

Andrew ★★★★★

Finally, an extension tube that fits securely without any wobble—the 1.8" outside diameter matches my setup perfectly. The 30mm length gives me just the right spacing for my camera sensor.

Related Products