# Center Field Split Diopter K&F NANO-B 58 mm (for 58mm lenses)

**URL:** https://aio.lv/en/product--kf-sb9698--11879050
**Data updated:** 2026-03-09 20:44 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB9698
**EAN:** 6942052529860
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb9698--11879050

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Center Field Split Diopter K&F NANO-B is a 58 mm split diopter filter designed to create simultaneous near and far focus in a single frame. It mounts on lenses with a 58 mm filter thread and provides a sharp optical transition between the diopter and the clear area. Useful for creative photography and videography where foreground and background need independent focus.

## Long description

Center Field Split Diopter K&F NANO-B 58 mm is a precision optical accessory that creates simultaneous near and far focus within a single frame. Designed for lenses with a 58 mm filter thread, this split diopter produces a clear, sharp transition between the magnified diopter area and the adjacent clear zone, enabling compositional effects that keep foreground subjects and background scenes in distinct focus planes.
Advantages
The split diopter provides a reliable optical edge with minimal image degradation, using glass elements optimized for contrast and resolution. Its 58 mm diameter ensures compatibility with a broad range of standard lenses, and the threaded mount offers secure attachment without additional holders. The design preserves exposure and color balance while allowing precise separation of focus planes, useful in both stills and motion capture.
Suitable for
Creative portrait photography where a subject in the foreground remains sharp while background elements are also readable
Filmmaking and videography sequences requiring split focus for storytelling or mise-en-scène
Commercial and editorial shoots that combine product details in close-up with contextual backgrounds
Experimental and artistic photography exploring depth and visual juxtaposition
Key specifications
Filter type: center field split diopter
Mount thread diameter: 58 mm
Optical material: multi-coated glass
Transition: sharp optical edge between diopter and clear area
Compatibility: fits lenses with 58 mm filter thread
How to use
Screw the split diopter onto the front of a lens with a 58 mm filter thread until it is securely seated. Compose the scene so that the subject meant to be magnified aligns with the diopter area while the remaining frame falls within the clear portion. Adjust focus on the camera to set the near-plane sharpness within the diopter and confirm background focus separately. For video, check focus throughout motion to avoid unwanted focus shifts across the transition line.
Usage recommendations
When framing, be mindful of the visible transition line: place it deliberately in the composition or disguise it with vertical elements. Use narrow apertures to increase depth of field in both zones if necessary, and verify exposure and color on test frames. Remove the diopter when not required to avoid unintended optical effects.

## FAQ

### How much does the K&F NANO-B Center Field Split Diopter 58 mm cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 17.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All K&F products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized K&F service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11879050/67296814_large.webp