# Binoculars Pentax UD 10x21

**URL:** https://aio.lv/en/product--pentax-61816--3596979
**Data updated:** 2025-12-29 13:34 (EET)
**Category:** Binoculars
**Manufacturer:** PENTAX
**Manufacturer code:** 61816
**EAN:** 027075301856
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 64.49 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 53.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pentax-61816--3596979

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

The Pentax UD 10x21 binoculars feature 10x magnification and a compact design with a 2.1 cm objective diameter. With Porro prisms, they provide excellent image quality. Dimensions: 108 mm width, 38 mm depth, and 87 mm height, making them easy to carry. Ideal for outdoor activities and wildlife observation.

## Long description

The PENTAX UD 10x21 binoculars combine compact dimensions with 10x magnification and fully multi-coated optics to deliver bright, clear images. Built with Porro prisms and aspherical lens elements, they provide edge-to-edge sharpness in a lightweight body (0.195 kg) and a small footprint (108 mm × 38 mm × 87 mm), making them easy to carry for outdoor observation and everyday use.
Advantages
These binoculars offer high optical performance through fully multi-coated lenses and aspherical elements, producing clear, high-contrast images despite the compact form factor. The 10x magnification delivers detailed views while the 21 mm objective and 2.1 mm exit pupil balance brightness and portability. The synchronized dual-axis eyepiece adjustment and Porro-prism design contribute to reliable alignment and comfortable viewing.
Suitable for
Wildlife and bird watching
Hiking and travel
Sporting events and outdoor performances
General outdoor observation and casual use
Key specifications
Model: PENTAX UD 10x21
Magnification: 10x
Objective diameter: 21 mm
Exit pupil: 2.1 mm
Prism type: Porro
Weight: 0.195 kg
Dimensions (W × D × H): 108 × 38 × 87 mm
Colour: Black
MPN: 61816, EAN: 027075301856
How to use
Hold the binoculars up to your eyes and adjust the interpupillary distance by folding or spreading the barrels until you see a single circular image. Focus using the central focusing mechanism or synchronized eyepiece adjustment until the subject appears sharp. For extended use, support the binoculars with both hands and stabilize your arms or lean on a solid surface to reduce shake.
Usage recommendations
Use these compact binoculars outdoors in daylight or well-lit conditions to make the most of the 21 mm objective and 2.1 mm exit pupil; because of the high 10x magnification and small objective, performance is best in good light and with steady support or a tripod adapter when extended viewing stability is needed.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.195 kg |
| Height | 87 mm |
| Width | 108 mm |
| Depth | 38 mm |

### Performance

| Feature | Value |
|---|---|
| Tripod mounting supported | Yes |
| Product colour | Black |
| Magnification | 10 x |
| Objective diameter | 21 mm |
| Exit pupil | 2.1 mm |
| Real field of view | 5.4 ° |
| Closest focusing distance | 3 m |
| Eye relief | 8.5 mm |
| Prism type | Porro |
| Lens coating | Multi Coated (MC) |
| Field of view (at 1000 m) | 94 m |

### Packaging content

| Feature | Value |
|---|---|
| Carrying case | Yes |
| Neck strap included | Yes |
| Lens cap included | Yes |

## FAQ

### How much does the Binoculars Pentax UD 10x21 cost, and is it available for purchase?

The price is 64.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 25.06.2026 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 PENTAX 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 PENTAX 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: prism type, weight, magnification, exit pupil, objective diameter, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/3596979/65600244_large.webp