ShoppyrizAccount
1.25" Adapters for OTI Quantum 4 Telescope1 / 6
New

1.25" Adapters for OTI Quantum 4 Telescope

Brand: OTI Quantum 4

$29.99

In stock

View on eBay

Affiliate link — checkout happens on eBay. We may earn a commission at no extra cost to you.

Ships from
US
Format
Buy It Now

Sold by

astroscan_man

1,752 feedback · 100.0 positive

Specifications

Item
Top Port Adapter
Brand
OTI Quantum 4
Type
Adapter
Item Diameter
1.25 in
Country of Origin
China

About this product

This listing is for a 3D printed adapter that will thread into the designated port of the OTI Quantum 4 telescope allowing 1.25" accessories to be used; eyepieces, barlows, diagonals, cameras, etc. The adapter is printed in strong and durable PETG Carbon Fiber. It includes a metal thumbscrew with brass compression ring…Read full description

This listing is for a 3D printed adapter that will thread into the designated port of the OTI Quantum 4 telescope allowing 1.25" accessories to be used; eyepieces, barlows, diagonals, cameras, etc. The adapter is printed in strong and durable PETG Carbon Fiber. It includes a metal thumbscrew with brass compression ring to retain the accessory without damaging or marking the item.

Please message if you'd like to inquire if these fit the Q6 or larger.

Dimensions:

Overall Height: ~43

Flared Width: 42.5mm

Body Width: 36mm

1.25" Internal Depth: 35mm

Threads: Axial: 1 1/4" x 28tpi, Top: ~1 1/8" x 24 tpi

Thread depth: 4.75mm

Opening at threads: 26mm (axial), 24mm (top)

Weight: 26g

*Reminder* - This part is 3d printed and the threads on this adapter are plastic, while they are strong and accurate, it is easier to cross-thread this item and permanently damage the threads than with a metal part. Take great care when threading this on; I like to turn it counterclockwise until you feel it click into the first thread, then rotate clockwise to tighten. If you feel strong resistance, stop immediately and try it again. If it is too tight no matter what, make sure your female threads do not have any gunk, dirt, grease, dust embedded into the threads (my scope did, I was able to clean them out with a small dental tool or the appropriate thread pitch guage).

Description written by a seller of this product on eBay. Store, shipping, payment and contact text has been removed. Check each offer for that seller's own terms.

Compare offers

1 listing from 1 seller. Prices update periodically. Only one listing of this exact product was found; more sellers appear here as they are discovered.

Lowest price
$29.99
Offers
1from 1 seller
CountryUnited StatesConditionNew
Offers for this product from different sellers
SellerConditionShips fromPriceShippingDelivery & returnsTotal

astroscan_man

via eBay

100% positive · 1,752 ratings

Highly rated seller
NewUnited States
$29.99Lowest price
Free

Est. Oct 17 – Oct 20

$29.99View Deal

Seller ratings are the feedback eBay reports for each seller. "Highly rated" means at least 98% positive from at least 100 ratings. Total = price + shipping, shown only when the listing states its shipping cost.

Price history

Lowest price available each day, tracked since Oct 7, 2026 (22 days).

Current lowest
$29.99
Previous price
No change yet
Lowest recorded
$29.99
Highest recorded
$29.99
Trend
→ Stable
since Oct 7

The lowest price for all conditions has not changed in this period, so there is no trend to chart yet.

History is built only from prices this site observed, starting the day tracking began; nothing is estimated or back-filled. Each point is the lowest price among the offers available that day. Shipping, duties and taxes are not included.

Related products

Recently viewed