---
product_id: 48391071
title: "Celestron 94175 Focal Reducer & Field Corrector Imaging Accessory, Reduces Focal Length & Ratio 37% – f/10 to f/6.3. For Schmidt-Cassegrain Telescopes"
brand: "celestron"
price: "€ 347.73"
currency: EUR
in_stock: true
category: "Celestron"
url: https://www.desertcart.it/products/48391071-celestron-94175-focal-reducer-and-field-corrector-imaging-accessory-reduces
store_origin: IT
region: Italy
---

# Expands field of view for deep sky & astrophotography 37% focal length & f/ratio reduction Universal accessory compatibility & easy install Celestron 94175 Focal Reducer & Field Corrector Imaging Accessory, Reduces Focal Length & Ratio 37% – f/10 to f/6.3. For Schmidt-Cassegrain Telescopes

**Brand:** celestron
**Price:** € 347.73
**Availability:** ✅ In Stock

## Summary

> 🔭 Unlock the universe: Two telescopes in one, endless cosmic possibilities!

## Quick Answers

- **What is this?** Celestron 94175 Focal Reducer & Field Corrector Imaging Accessory, Reduces Focal Length & Ratio 37% – f/10 to f/6.3. For Schmidt-Cassegrain Telescopes by celestron
- **How much does it cost?** € 347.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/48391071-celestron-94175-focal-reducer-and-field-corrector-imaging-accessory-reduces)

## Best For

- celestron enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Accessory Integration:** Works flawlessly with T-Adapters, star diagonals, off-axis guiders, and more—no compromises on your setup.
- • **Double Your Telescope’s Power:** Transforms your f/10 Schmidt-Cassegrain into a fast f/6.3 for versatile lunar, planetary, and deep sky use.
- • **Wider, Brighter Views Instantly:** 37% reduction in focal length means shorter exposures and a broader field of view—capture more of the cosmos in one frame.
- • **Effortless Installation & Handling:** Knurled, multi-coated lens threads easily onto your telescope’s rear cell—upgrade your rig in seconds.
- • **Optimized for Low Light & Digiscoping:** Faster f/ratio lets you shoot in dim conditions with maximum light transmission and near full-field illumination.

## Overview

The Celestron 94175 Focal Reducer & Field Corrector is a precision multi-coated lens accessory designed for Schmidt-Cassegrain telescopes. It reduces focal length and f/ratio by 37%, converting an f/10 system to f/6.3, enabling wider, brighter views ideal for both astrophotography and visual observation. Compatible with a wide range of accessories and easy to install, it enhances your telescope’s versatility—perfect for professionals and enthusiasts aiming to capture expansive celestial vistas with shorter exposures and improved contrast.

## Description

Product Description Imagine having two telescopes in one — a long focal length instrument for lunar and planetary work and a short focal length scope for deep sky observing and astrophotography. With the Celestron Reducer/Corrector Lens, that’s precisely what you get. Explicitly designed for Celestron Schmidt-Cassegrain telescopes, this lens reduces your telescope’s focal length and f/ ratio by 37%, turning your long focal length telescope into a fast, short focal length instrument. A f/10 focal ratio now achieves a f/6.3, while an f/11 focal ratio now achieves a f/7. For visual use, this means you get lower power with the same eyepiece and a wider field of view. Photographically you also get a wider field and much shorter exposures. The Reducer/Corrector is easy to install by threading the unit onto the rear cell of your Schmidt-Cassegrain telescope (or the reducer plate of the C11 and C14). Once installed, you can add accessories like T-Adapters, 1.25” Visual Back, Star Diagonal, or Off-Axis Guider. The Reducer/Corrector can also be used for terrestrial digiscoping. The faster f/ratio allows you to use slower film or shoot in lower light level situations and still properly expose your subject. This fully multi-coated lens provides maximum light transmission with near full-field illumination. The internal surfaces are blackened and glare-threaded to provide the highest contrast. The lens has a knurled surface, providing a gripping surface for threading/unthreading. Box Contains Celestron Reducer - Corrector

## Features

- LIKE HAVING TWO TELESCOPES IN ONE: Your long focal length Schmidt-Cassegrain is suited to lunar and planetary work, add the reducer corrector and you have a short focal length telescope for deep sky observing and astrophotography
- REDUCES FOCAL LENGTH AND F/RATIO BY 37%: Simply thread the reducer onto your telescope's rear cell and an f/10 Schmidt-Cassegrain becomes f/6.3 or an f/11 instrument becomes f/7
- COMPATIBLE WITH ALL YOUR ACCESSORIES: Once the reducer is installed, you can add accessories like a T-Adapter, visual back, star diagonal or off-axis guider
- FOR TERRESTRIAL DIGISCOPING: The faster f/ratio allows you to shoot in dimmer lighting conditions and still properly expose your subject, this fully multi-coated lens provides maximum light transmission with near full-field illumination
- THREAD THE UNIT ONTO THE REAR CELL OF YOUR SCHMIDT-CASSEGRAIN TELESCOPE (OR THE REDUCER PLATE OF THE C11 AND C14): Easy to install

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00009XVHZ |
| Best Sellers Rank | 288 in Telescope Accessories |
| Box Contents | Reducer - Corrector |
| Brand Name | Celestron |
| Coating | Multi-Coated |
| Compatible Devices | Celestron Schmidt-Cassegrain telescopes (C5, C6, C8, C9.25, C11, C14) |
| Country of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (701) |
| Exit Pupil Diameter | 31.75 Millimeters |
| Eye Piece Lens Description | Plossl |
| Field Of View | 0.04 Degrees |
| Finderscope | Reflex |
| Focal Length Description | The original focal length of the telescope, before using the reducer corrector, is not explicitly mentioned in the provided information. However, it can be inferred that for an f/10 system, the reducer corrector reduces the focal length by 37% to make it an f/6.3 system. Thus, if the focal length of the f/10 system is F, then the focal length after using the reducer corrector would be 0.63F (f/6.3… |
| Focus Type | Manual Focus |
| Global Trade Identification Number | 00050234941754 |
| Item Dimensions D x W x H | 5.1D x 5.1W x 5.1H centimetres |
| Item Weight | 150 Grams |
| Manufacturer | Celestron |
| Manufacturer Part Number | 94175 |
| Model Name | 94175 |
| Model Number | 94175 |
| Mount | Equatorial Mount |
| Objective Lens Diameter | 200 Millimetres |
| Optical-Tube Length | 105 Millimetres |
| Power Source | Not Obtainable |
| Product Features | Two telescopes in one: long focal length for lunar/planetary work and short focal length for deep sky observing and astrophotography. |
| UPC | 050234941754 |
| Unit Count | 1.0 count |
| Zoom Ratio | 7 |

## Product Details

- **Brand:** Celestron
- **Eye piece lens description:** Plossl
- **Finderscope:** Reflex
- **Focus type:** Manual Focus
- **Model name:** 94175
- **Objective lens diameter:** 200 Millimetres
- **Optical tube length:** 105 Millimetres
- **Power source:** Not Obtainable
- **Product dimensions:** 5.1D x 5.1W x 5.1H centimetres
- **Telescope mount description:** Equatorial Mount

## Images

![Celestron 94175 Focal Reducer & Field Corrector Imaging Accessory, Reduces Focal Length & Ratio 37% – f/10 to f/6.3. For Schmidt-Cassegrain Telescopes - Image 1](https://m.media-amazon.com/images/I/519X+yzPqPL.jpg)
![Celestron 94175 Focal Reducer & Field Corrector Imaging Accessory, Reduces Focal Length & Ratio 37% – f/10 to f/6.3. For Schmidt-Cassegrain Telescopes - Image 2](https://m.media-amazon.com/images/I/5165OQE0RRL.jpg)
![Celestron 94175 Focal Reducer & Field Corrector Imaging Accessory, Reduces Focal Length & Ratio 37% – f/10 to f/6.3. For Schmidt-Cassegrain Telescopes - Image 3](https://m.media-amazon.com/images/I/21xqFBUfSjL.jpg)
![Celestron 94175 Focal Reducer & Field Corrector Imaging Accessory, Reduces Focal Length & Ratio 37% – f/10 to f/6.3. For Schmidt-Cassegrain Telescopes - Image 4](https://m.media-amazon.com/images/I/51lE9ezskBL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Celestron – Focal Reducer & Field Corrector Imaging Accessory – Reduces Focal Length & Ratio 37% – f/10 to f/6.3 – Ideal for Deep-Sky Observing & Astroimaging – Works w/Schmidt-Cassegrain Telescopes
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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-15*