Swirl Bokeh Drop-in Filter for Canon EF to RF Drop-in Filter Adapter

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Introducing our new Swirl Bokeh Drop-in Filter for Canon’s EF to RF Drop-in Filter Adapter!

Our Swirl Bokeh filter is capable of producing dreamy blurred backgrounds for images where you want the subject to fully stand out from the background. Our Swirl Bokeh Filter fits perfectly into Canon’s RF to EF Drop-in Filter Adapter and allows you to easily use the filter across multiple modern lenses.

The term Bokeh comes from the Japanese word “bokeru,” which means blur or haziness. In modern photography, it directly refers to the way the out of focus areas of an image are rendered by a lens. The “swirl” bokeh effect is usually the result of a defect and poor focusing on a specific lens. Modern professional lenses are not affected by these defects and will never produce the rare “swirl” bokeh effect.

Many photographers chase the rare classic swirl bokeh effect by purchasing older, vintage lenses but there is now no need to purchase additional lenses as long as you have Canon’s RF to EF Drop-in Adapter and our Swirly Bokeh Drop-in Filter!

We are currently offering our Swirl Bokeh Filter in two variations. (1x & 2x)

The 1x will produce a great swirly bokeh while the 2x produces a more dramatic iteration of the effect.

All of our Drop-In filters are compatible with Canon’s Drop-In adapter system as well as our own.



Example Photo Shot w/ Canon 50mm 1.4 Lens


Recommended for use on portrait lenses. (Focal ranges under 35mm will require extremely close focus distance.) 

Focus distance recommendation:

1X – works best @ 1 to 4 feet distance from your subject.

2X – works best @ 1 to 2 feet distance from your subject.

The effect can vary depending on the lens used and also the distance between your camera and your subject.

By purchasing you agree to our Terms of Purchase

Lifetime Guarantee

At Kolari, we build our filters to last and have complete confidence in their performance. You will too with our lifetime guarantee against defects. If you find something wrong with your filter, at any time, write us at contact@kolarivision.com. Visit our FAQ section for more information.

International Orders

Do you accept international orders?

Absolutely! For accurate shipping costs, please enter your complete shipping address during the checkout process. Some locations may be subject to a remote area surcharge via FedEx Express. The system will not automatically calculate this surcharge. Please check the following link if your city/zip code is considered a remote area: Zipcodes_OPA_ODA.pdf

If you place an order and your city/zip code is on this list, we’ll reach out to you via email to collect the surcharge.

**Backordered Items: Please note that international orders that include backordered items will be held, and shipped together, when all items are in stock! If you need in-stock items to ship prior to this time we can do this upon your request, however, shipment of the remaining items will incur additional shipping fees. Please reach out to our customer service team if partial shipping is required.

***We legally can not declare lower values for customs and duties. We ship all of our international orders from the United States.  Please note that we do not collect taxes, duties, or VAT. International customers are responsible for all duties, taxes, and VAT that may be charged by their respective local customs office. You may also be subject to a brokerage charge when you choose FedEx, UPS, or DHL shipping options.***

Return Policy

Kolari Return Policy

 60-Day Hassle-free Returns

If you are unsatisfied with your purchase for any reason, Kolari accepts returns on most products within 60 days of purchase. We can either provide exchanges in the form of store credit, which can be used sitewide, or we can issue full refunds via the method you originally used for payment. To be eligible for a full refund, the product must be in new, mint condition, including all original, undamaged packaging materials and accessories. Items that are damaged, dirty, dented, scratched, or missing major components may be denied for return. Kolari is not responsible for personal data or items left inside of returned merchandise.

Prior Approval

All returns must be pre-approved by Kolari before items are sent back. To initiate a return or exchange, please send an email to contact@kolarivision.com with your name, order number, and reason for return. Once the return has been approved, you will receive an RMA/packing slip that must be included in the return shipment. Unless the incorrect product was received or your product arrived damaged or defective, you are responsible for all return shipping costs. Kolari strongly recommends purchasing tracking and insurance when sending items. Kolari will not take responsibility for any returns lost or damaged in the mail.

Damaged, Defective, or Incorrect Items

It is important to thoroughly inspect all items upon delivery. If you receive a damaged, defective, or incorrect product, please email us at contact@kolarivision.com within 14 days of product delivery to file a claim. Once a claim has been filed, we will work with you to solve the problem.

Non-returnable Items

  • Orders outside the 60-day return period
  • Damaged products not reported within 14 days of delivery
  • Items no longer in like-new condition (scratched, damaged, dented, cracked, dirty)
  • Products with missing accessories or packaging
  • Digital items such as LUTs, presets, online courses, or photography software
  • Converted cameras
  • Custom items
  • Used gear

International Returns

International customers or customers in U.S. territories are responsible for both return shipping and any duties associated with the return. Original shipping costs, import duties and taxes are also non-refundable.

Shipping Fees

Refunds do not include any shipping charges on the initial order. Items purchased with free shipping will still receive a full refund on the value of the item. The customer is responsible for all return shipping charges to send the product back to Kolari. Kolari cannot provide return labels at this time.

Restocking Fee

If any condition of the return policy listed above is not met, Kolari reserves the right to reject the return entirely or impose a restocking fee of 20% of the purchase price of the item, not including shipping. If a returned item is unopened or appears to be in brand-new condition, including packaging and accessories, the restocking fee will be waived.

 PayPal Fee

All returned orders that were paid via PayPal will incur a non-refundable fee of 5% of the purchase price of the item, not including shipping. The PayPal fee will be automatically waived if you choose to accept your refund as store credit, which can be used for purchases sitewide.


Can I return used gear?

All used gear sales are final and not eligible for a return unless the product in question is damaged or defective upon delivery or not as described. If used gear is found to be damaged, defective or not as described, it must be reported within 14 days of purchase for potential return.

Can I return converted cameras?

All of our cameras are made to order upon your request. Due to the custom nature of our converted cameras, all converted camera sales are final and not eligible for a return, however, they are covered by our warranty. For warranty details please refer to the specific product page.

Can I return my order after the 60-day return period?

Unfortunately, we are unable to accept any returns outside of our 60-day return period. If you’re having issues with any of our products, please send an email to contact@kolarivision.com and we’ll be more than happy to help or troubleshoot your issue.

What if I purchased Kolari products from another site and/or seller?

For purchases made through third-party resellers such as Amazon, B&H, Adorama, eBay, or others, customers will need to contact the vendor directly for any exchange or return requests. Unfortunately, we are unable to process refunds for purchases made through these resellers.

Who is responsible for shipping costs?

The customer is responsible for all return shipping costs, including optional tracking and insurance, unless the item that was received was incorrect, damaged, or defective, in which case Kolari will provide you shipping instructions to return the item at our cost.

1 review for Swirl Bokeh Drop-in Filter for Canon EF to RF Drop-in Filter Adapter

  1. Richard Martinez

    My rating of the Kolari 1x and 2x swirly bokeh filters is outstanding. I like the look the filters have. They look as good/better than the Helios 44-2 58 f2 vintage manual focus lens that I own. My findings have been using the Canon R5 and a Canon 50 1.4 lens. This lens maintains the ability to auto focus though there is a distance limitations. 2 feet from subject with the 2x and about 6 feet with the 1x. I tried a 35mm lens but the focus distance was much shorter. about 1 foot with the 2x and would work for small objects or product shooting. There are a number of variables that influence the amount of the effect. Distance to subject, and to background as well as what F stop you shoot at. Changing these stetting open up a variety of variations of the swirl. The filters are easy to install and fit well. The quality seems good and the filters are held tightly in place until removal. My model bailed on me but I did have a few examples. imadethis.photo/kolari The advantage over a vintage lens is obvious, auto focus still works and the filters are smaller and lighter and work on different lenses. They are small enough that I can always keep them in my bag. If you are looking for the swirly bokeh effect these filters are just what the Dr. ordered.

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