---
product_id: 253936011
title: "Standard Prime Lens Focus Calibration Tool Alignment Ruler (Black, Pack of 2) for Nikon F, Canon EF, Sony E"
brand: "dslrkit"
price: "£13.48"
currency: GBP
in_stock: true
reviews_count: 5
category: "Dslrkit"
url: https://www.desertcart.co.uk/products/253936011-standard-prime-lens-focus-calibration-tool-alignment-ruler-black-pack
store_origin: GB
region: United Kingdom
---

# Pinpoint AF accuracy check Precise 19x12.3cm calibration scale Compatible with Nikon, Canon, Sony mounts Standard Prime Lens Focus Calibration Tool Alignment Ruler (Black, Pack of 2) for Nikon F, Canon EF, Sony E

**Brand:** dslrkit
**Price:** £13.48
**Availability:** ✅ In Stock

## Summary

> 🎯 Nail your focus or miss the shot—calibrate like a pro!

## Quick Answers

- **What is this?** Standard Prime Lens Focus Calibration Tool Alignment Ruler (Black, Pack of 2) for Nikon F, Canon EF, Sony E by dslrkit
- **How much does it cost?** £13.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/253936011-standard-prime-lens-focus-calibration-tool-alignment-ruler-black-pack)

## Best For

- dslrkit enthusiasts

## Why This Product

- Trusted dslrkit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Pack Convenience:** Two calibration rulers included—perfect for multiple lenses or backup on the go.
- • **Shallow Depth Mastery:** Designed for wide aperture lenses to ensure razor-sharp focus where it matters most.
- • **Universal Compatibility:** Works seamlessly with Nikon F, Canon EF, and Sony E mount cameras for versatile use.
- • **Spot-On Focus Every Time:** Calibrate your lens for flawless autofocus precision, eliminating costly blurry shots.
- • **Easy Pro-Level Adjustment:** Empowers you to fine-tune AF Micro Adjustment or AF Fine Tune settings like a seasoned photographer.

## Overview

This Standard Prime Lens Focus Calibration Tool is a compact, easy-to-use ruler designed to help photographers verify and adjust their camera's autofocus accuracy. Compatible with Nikon, Canon, and Sony cameras, it enables precise AF Micro Adjustment or AF Fine Tune, ensuring sharp images especially when shooting with shallow depth of field. The pack includes two durable calibration rulers sized 19x12.3cm, making it an essential accessory for any serious photographer aiming for perfect focus.

## Description

Instruction This compact ruler allows you to determine if your lens is auto-focusing accurately as it should. It is an essential tool that is particularly useful when shooting with a shallow depth of field, where focusing should ideally be "spot on". You can use this ruler to determine how "off" the focusing is for a particular camera / lens combination and, on supported cameras, adjust the camera's auto-focus settings to resolve this. On Nikon cameras, this feature is known as "AF Fine Tune". On Canon and Sony cameras, it's known as "AF Micro Adjustment". Please refer to your camera's instructions manual to see if this feature is present. Size:19*12.3cm Package Included: Lens Focus Calibration Card X2 Usage 1. Set up the ruler. 2. Ensure both the camera and ruler are level, exactly perpendicular and at the same height. It is best to mount the camera on a tripod to do this. 3. Set the lens to the widest aperture to obtain the shallowest depth of field. This will make it easier to determine if your lens is focusing accurately. Auto-focus on the QR-Code at the center of the ruler, then take a photo. 4. Inspect the photo to see if focusing is accurate. It is recommended that you do this on a computer since you will be able to see better on a bigger screen. If focusing is accurate, the '0' on the ruler should be the sharpest point on the image and the other numbers get blurrier as you move away from the 0. 5. If any number above the 0 is clearer, then your lens is backfocusing. Otherwise, if any number below the 0 is clearer, then your lens is front focusing. In either case, you would have to set the auto-focus micro-adjustment parameters on your camera body until you are able to obtain a picture that is sharpest at the '0' on the ruler.

Review: Funciona bien. No es el mas fino pero si trabaja
Review: Ich nutze an meiner Kamera hauptsächlich Sigma Objektive. Um zu kontrollieren bzw diesen ggf zu korigieren habe ich mir dieses Testobjekt im zweierpack gekauft. Sicher gibt es das auch zu Hauf im Internet kostenlos, aber hier ist alles bereits fertig. Es kommt ordentlich verpackt. Zusammengebaut in einer Minute. Das ganze für kleines Geld. Was will man mehr. Empfehlung

## Features

- This compact ruler allows you to determine if your lens is auto-focusing accurately as it should. It is an essential tool that is particularly useful when shooting with a shallow depth of field, where focusing should ideally be "spot on".
- You can use this ruler to determine how "off" the focusing is for a particular camera / lens combination and, on supported cameras, adjust the camera's auto-focus settings to resolve this
- On Nikon cameras, this feature is known as "AF Fine Tune". On Canon and Sony cameras, it's known as "AF Micro Adjustment". Please refer to your camera's instructions manual to see if this feature is present.
- Size:19*12.3cm
- Package Included: Lens Focus Calibration Card X 2

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B012F8G1DO |
| Best Sellers Rank | #86,111 in Electronics ( See Top 100 in Electronics ) #49 in Photographic Calibration Charts & Grey Cards |
| Brand | DSLRKIT |
| Camera Lens | Focus calibration tool for camera lenses |
| Color | Black |
| Compatible Camera Models | [Nikon, Canon, Sony] |
| Compatible Camera Mount | Canon EF, Nikon F, Sony E |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,895) |
| Exposure Control Type | Automatic |
| Focal Length Description | 190 millimeters |
| Focus Type | Auto Focus |
| Image stabilization | No image stabilization |
| Item Weight | 0.01 Ounces |
| Lens | Standard |
| Lens Design | Prime |
| Lens Fixed Focal Length | 190 Millimeters |
| Lens Mount | Canon EF |
| Manufacturer | DSLRKIT |
| Manufacturer Part Number | LFCT2 |
| Maximum Aperture | 5.6 Millimeters |
| Media Type | PhysicalProduct |
| Minimum Aperture | 93 Millimeters |
| Minimum Focal Length | 190 Millimeters |
| Model Name | LFCT2 |
| Screen Size | 19 Centimeters |
| UPC | 745227400324 |
| Unit Count | 2 Count |
| Viewfinder Type | LCD Display |
| Water Resistance Level | Water Repellent |

## Product Details

- **Brand:** DSLRKIT
- **Camera lens description:** Focus calibration tool for camera lenses
- **Compatible mountings:** Canon EF, Nikon F, Sony E
- **Focal length description:** 190 millimeters
- **Lens type:** Standard

## Images

![Standard Prime Lens Focus Calibration Tool Alignment Ruler (Black, Pack of 2) for Nikon F, Canon EF, Sony E - Image 1](https://m.media-amazon.com/images/I/813gxKL2P6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by M***L on 11 December 2018*

Funciona bien. No es el mas fino pero si trabaja

### ⭐⭐⭐⭐⭐ Review
*by B***N on 17 July 2018*

Ich nutze an meiner Kamera hauptsächlich Sigma Objektive. Um zu kontrollieren bzw diesen ggf zu korigieren habe ich mir dieses Testobjekt im zweierpack gekauft. Sicher gibt es das auch zu Hauf im Internet kostenlos, aber hier ist alles bereits fertig. Es kommt ordentlich verpackt. Zusammengebaut in einer Minute. Das ganze für kleines Geld. Was will man mehr. Empfehlung

### ⭐⭐⭐⭐ Review
*by R***. on 31 January 2017*

good

## Frequently Bought Together

- DSLRKIT Lens Focus Calibration Tool Alignment Ruler Folding Card(Pack of 2)
- DGK Color Tools High Resolution 8.5x11" Chrome SD Professional Lens Test Chart, 3-Pack
- DGK Color Tools Digital Kolor Pro 16:9 Large Color Calibration and Video Chip Chart, 2-Pack

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-03*