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Unbranded 105mm Bahtinov Focus Mask for DSLR Lens - 2023 Clip-in Version

Brand: Unbranded
High quality Bahtinov masks with high bahtinov factor for easy focusing. Clips into any camera lens filter thread using a gentle spring loaded action. 
I have listings for all common lens thread sizes so please check my other listings if you need a different size.
This is my new version for 2023 incorporating some design improvements.
  • Filter size now embedded in print for easy identification.
  • 3 spring loaded clips instead of 4 for easier removal and better optical centering.
  • Top surfaces now smoother with less layer lines visible.
Bahtinov factor is calculated using the focal length divided by slot spacing. 
50mm = around 62.5 bahtinov factor
135mm = around 168 bahtinov factor
200mm = around 250 bahtinov factor
500mm = around 626 bahtinov factor
Anything over 150 will allow you to focus easily with large diffraction spikes. 
A 50mm lens will still work with my masks but the diffraction spikes will be smaller. Not recommended for lenses under 50mm.
3D printed with premium American made plastic.
I can also do oddball filter sizes and custom sized masks for telescopes and dew shields, feel free to message me with any requests.
Brand: Unbranded
Isin: I7A31HHFLY5Y

$38.24

  • Free shipping in US
  • Arrives:

  • Free 30-Day returns

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Sold by , Fulfilled by IBSPOT
Ships from USA

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Unbranded 105mm Bahtinov Focus Mask for DSLR Lens - 2023 Clip-in Version

Unbranded 105mm Bahtinov Focus Mask for DSLR Lens - 2023 Clip-in Version

$38.24

High quality Bahtinov masks with high bahtinov factor for easy focusing. Clips into any camera lens filter thread using a gentle spring loaded action. 

I have listings for all common lens thread sizes so please check my other listings if you need a different size.

This is my new version for 2023 incorporating some design improvements.
  • Filter size now embedded in print for easy identification.
  • 3 spring loaded clips instead of 4 for easier removal and better optical centering.
  • Top surfaces now smoother with less layer lines visible.
Bahtinov factor is calculated using the focal length divided by slot spacing. 

50mm = around 62.5 bahtinov factor
135mm = around 168 bahtinov factor
200mm = around 250 bahtinov factor
500mm = around 626 bahtinov factor

Anything over 150 will allow you to focus easily with large diffraction spikes. 

A 50mm lens will still work with my masks but the diffraction spikes will be smaller. Not recommended for lenses under 50mm.

3D printed with premium American made plastic.

I can also do oddball filter sizes and custom sized masks for telescopes and dew shields, feel free to message me with any requests.

 

Processing Time

  • We process and ship orders Monday through Friday, excluding holidays.
  • Most orders are processed within 1–3 business days, depending on product availability.
  • Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.

Shipping Coverage

We currently ship to addresses within the United States only.

Products may ship from:

  • Our U.S. warehouses, or
  • Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).

Each product page clearly displays the “Ships From” location before checkout.


Shipping Methods & Estimated Delivery

 

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $6.50 for the first item, $3.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $6.50, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–15 business days $14.50 for the first item, $4.00 each additional

Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.

Free Shipping

We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout. 


Carriers

We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.


Import Duties & Taxes

All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.


Tracking & Notifications

Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.

You can track your shipment anytime using the Track Your Order page on our website.


Order Changes & Cancellations

If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.

Contact: support@ibspot.com


Item Not Received

If your tracking number shows “Delivered” but you haven’t received your package:

  1. Check with your local USPS or UPS office.
  2. Confirm that the shipping address provided was correct.
  3. If the issue remains unresolved, contact support@ibspot.com for assistance.

Damaged or Lost Parcels

If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.


Customer Support

For any questions about shipping, tracking, or delivery, our customer support team is here to help.

Email: support@ibspot.com

We’re always happy to help.

Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.


Order Cancellation Policy

Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

How to Request a Cancellation

You can contact us through:

Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.


Return Policy

We accept returns for most items within 30 days of delivery for a full refund.

To be eligible for a return:

  • The item must be unused, in the same condition as received, and in its original packaging.
  • A tracking number must be provided to confirm the return shipment.

Non-Returnable Items

Certain products cannot be returned, including:

  • Perishable goods (for example, food, flowers, newspapers, magazines)
  • Intimate or sanitary goods
  • Hazardous materials or flammable liquids/gases
  • Gift cards
  • Downloadable software
  • Some health and personal care items

Partial Refunds (If Applicable)

Partial refunds may be granted in specific situations, such as:

  • Books with obvious signs of use
  • Opened CDs, DVDs, software, or vinyl records
  • Items not in their original condition, damaged, or missing parts not due to our error
  • Items returned more than 30 days after delivery

How to Return an Item

To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.


Shipping Cost for Returns

Please contact us before returning any item.
We will provide a free return shipping label.

If a return is sent back without prior contact or without our provided label, we cannot be held responsible for return shipping costs.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.


Refund Processing

Once your return is received and inspected:

  • In-store returns are refunded to the original form of payment or issued as a gift card.
  • Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.

Please allow:

  • 5–7 business days for the return to reach our Returns Center.
  • An additional 3–10 business days for your bank to post the refund to your account.

Damages, Issues & Claims

Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.

Product Claims

Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.


Exchanges

We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.


Return Address

IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States


Customer Support

Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
Contact Form: Contact Us page

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