---
product_id: 274226249
title: "28X18cm Lens Focus Calibration Tool Alignment Ruler Folding Card (pack of 2)"
brand: "dslrkit"
price: "124 Lei"
currency: RON
in_stock: true
reviews_count: 5
url: https://www.desertcart.ro/products/274226249-28x18cm-lens-focus-calibration-tool-alignment-ruler-folding-card-pack
store_origin: RO
region: Romania
---

# 28X18cm Lens Focus Calibration Tool Alignment Ruler Folding Card (pack of 2)

**Brand:** dslrkit
**Price:** 124 Lei
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 28X18cm Lens Focus Calibration Tool Alignment Ruler Folding Card (pack of 2) by dslrkit
- **How much does it cost?** 124 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/274226249-28x18cm-lens-focus-calibration-tool-alignment-ruler-folding-card-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

## Description

DSLRKIT 28X18cm Lens Focus Calibration Tool Alignment Ruler Folding Card (pack of 2)

## Features

- Make sure that this fits by entering your model number.
- 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:28.1*18cm
- Package Included: Lens Focus Calibration Card X 2

## Images

![28X18cm Lens Focus Calibration Tool Alignment Ruler Folding Card (pack of 2) - Image 1](https://m.media-amazon.com/images/I/71CFDKSpd4L.jpg)

## Questions & Answers

**Q: How far away should the lens be away from the card?**
A: It really depends on the focal length of the lens.  You want to try to fill the frame as much as possible with a photo of the card.

**Q: What do you focus on to calibrate your lens?**
A: Focus on the center target.  The plane at which the side graphics are sharp will indicate front or back focus, relative to the center target.
Suggest that you look at Youtube videos specific to autofocus calibration - a wealth of information there!

## Customer Reviews

### ⭐ 







  
    Un accesorio de calibración debe tener una precisión absoluta, de lo contrario no sirve para nada
  
  

*by C***N on Reviewed in Spain 🇪🇸 on 15 July 2022*

Cometí el error de creer que un automontable de cartulina podría utilizarse como accesorio de calibración. Una herramienta de calibración debe tener una precisión absoluta, de lo contrario no sirve para nada. A la hora de calibrar un instrumento óptico, como es el caso del autofoco de un objetivo, no hay puntos  intermedios: o usas un accesorio de absoluta precisión o no sirve de nada.Una vez montado, puedes constatar que no hay ningún elemento con ángulos perfectos respecto al plano vertical y horizontal. Si el accesorio no garantiza el absoluto paralelismo con los ángulos correctos, ¿cómo vas a fiarte del análisis del foco?Por muy barato que sea, el problema es que no sirve absolutamente para nada.

### ⭐⭐⭐⭐ 







  
    Schlicht und einfach
  
  

*by H***R on Reviewed in Germany 🇩🇪 on 22 September 2021*

Ein einfaches Hilfsmittel. Aber eine kleine Anleitung hätte doch dabei sein können. Der Afbau ist nicht das Problem. Doch mit der Handhabung sind sicher nicht alle User vertraut. Dafür eine Stern Abzug.

### ⭐⭐⭐⭐⭐ 







  
    Sigma Objektiv überführt
  
  

*by K***H on Reviewed in Germany 🇩🇪 on 16 June 2020*

Ich war der Meinnung das der Autofocus schlecht arbeitet bei einem neuen Sigma Objektiv an einer EOS 1DX IIDamit konnte ich eine dann eine gute Korrektur duchführen

## Frequently Bought Together

- DSLRKIT 28X18cm Lens Focus Calibration Tool Alignment Ruler Folding Card (pack of 2)
- SanDisk 128GB Extreme PRO SDXC card, SD Card, V30 Memory Card, 4K UHD, up to 200 MB/s, SanDisk QuickFlow Technology, RescuePro Deluxe Data Recovery Software, UHS-I, Class 10, U3, V30
- Tamron Tap-In Console for Nikon Lenses - Black

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**Shop now:** [https://www.desertcart.ro/products/274226249-28x18cm-lens-focus-calibration-tool-alignment-ruler-folding-card-pack](https://www.desertcart.ro/products/274226249-28x18cm-lens-focus-calibration-tool-alignment-ruler-folding-card-pack)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-20*