---
product_id: 2664427
title: "4\"x4\" Solar Filter Sheet for Telescopes, Binoculars and Cameras"
brand: "thousand oaks optical"
price: "€ 17.71"
currency: EUR
in_stock: true
reviews_count: 10
category: "Thousand Oaks Optical"
url: https://www.desertcart.fi/products/2664427-4x4-solar-filter-sheet-for-telescopes-binoculars-and-cameras
store_origin: FI
region: Finland
---

# Natural orange sun color view Customizable 4x4 inch sheet 5-year durability guarantee 4"x4" Solar Filter Sheet for Telescopes, Binoculars and Cameras

**Brand:** thousand oaks optical
**Price:** € 17.71
**Availability:** ✅ In Stock

## Summary

> 🌞 See the Sun Like a Pro — Safely, Clearly, and Stylishly!

## Quick Answers

- **What is this?** 4"x4" Solar Filter Sheet for Telescopes, Binoculars and Cameras by thousand oaks optical
- **How much does it cost?** € 17.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/2664427-4x4-solar-filter-sheet-for-telescopes-binoculars-and-cameras)

## Best For

- thousand oaks optical enthusiasts

## Why This Product

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

## Key Features

- • **DIY Custom Fit:** Cut and adapt the 4x4 sheet to fit any telescope, binocular, or camera lens effortlessly.
- • **Trusted Legacy Brand:** Crafted by Thousand Oaks Optical, pioneers with 30+ years of solar filter expertise.
- • **True-to-Life Solar Views:** Experience the sun’s natural orange hue and detailed sunspots like never before.
- • **Budget-Savvy Solar Solution:** Premium quality at a fraction of factory filter costs—perfect for the savvy millennial astronomer.
- • **Unmatched Safety & Durability:** Stronger than Mylar with 5-year guaranteed protection for your eyes and gear.

## Overview

This 4x4 inch black polymer solar filter sheet from Thousand Oaks Optical offers a durable, safe, and customizable solution for solar observation. Engineered stronger than Mylar and guaranteed for five years, it delivers natural orange sun views with visible sunspots through telescopes, binoculars, and cameras. Trusted by professionals for over 30 years, it’s an affordable, DIY-friendly filter that elevates your daytime astronomy experience while ensuring eye safety.

## Description

Black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars.;These sheets are a quality product of Thousand Oaks Optical, Arizona, a manufacturer of safe solar filters for over 30 years. Stronger than Mylar with the filtering properties protected within the substrate. Guaranteed five years.;Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost.;The sun will appear in a natural orange color when viewed through your telescope using this filter.;WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING!

Review: Very Good Filter, Bargain Price - Full disclosure: First solar eclipse photo op for me! I have multiple total, and partial, lunar eclipses in my experience base but no solar chops! Until now. The Thousand Oaks Optical brand solar filter is quite economical, if you're on a tight budget, or just frugal by nature. And there's also the argument against buying an optical glass, dedicated size, filter for one lens or telescope aperture! The T.O.O. filter is metallized Mylar film, not glass! You can buy the size for the largest lens or telescope you own and then adapt it to smaller lens sizes as needed, with a bit of additional fabrication. I adapted the 4" X 4" filter to fit the sunshade of a 70-300mm zoom lens, which I could fit on, or remove as needed. I fabricated a filter mount from white card stock and Scotch Magic Tape. As such, the fit was secure enough to not need any additional support. If it was really windy, a few pieces of Magic Tape would have secured it to the sunshade! I made some test exposures well before the event started and dialed in a starting exposure and captured the image in pic 1. Sunspots are visible in the center and left of center. Cloud cover interrupted the rest of the event, and pics 2 and 3 are marred by wispy clouds moving across the frame. As my location was several hundred miles east of totality, the eclipse was a partial for me. I was happy to have caught what I did and gained some experience from it too. The filter performed exactly as presented! Please note: The filter can be used, as delivered, by simply folding and taping the corners to whatever optical device you plan to use. However, there's a risk of leaving a gap through which sunlight can pass, causing damage to the eye or optical gear! There are a number of sites online dedicated to amateur telescope making that have information on fabricating and adapting all sorts of gadgets and accessories for astronomy Do it right, you only have one pair of eyes. Safe viewing and clear skies!! Hope this helps
Review: Great product, great company. - First off, the solar filter I got was very obviously from thousand oaks as it was written on the cardboard. So do not fear you will get an off brand as some reviews have mentioned. Works perfectly, I put it on my scope's lense cap then tested it with my phone before daring to use my eye. First light was only 40 times magnification and no apparent sunspots could be seen. Sun was yellow and looked like, well, the sun. When I went to 100 times magnification I found a very prominent sunspot, and watched it for a while. Very awesome thing to have as now I can use my scope in the daytime more. Please, as stated a million times, make sure it is properly working before you put your eye up to it. I do 5 checks before using it, some twice. Check for damage, tape is coming off, finger prints or oil, moisture damage, front and back, then firmness fitting so the wind can't blow it off (I have mine on my scoped cap so I added felt to the cap to make it fit snuggly and it is now very hard to take off which is perfect). Great product, clean views from what I can tell. Using it on a skywatcher 100ED Pro, very amazing. Can't say about use with reflectors yet as my 12 inch reflector is black and I worry it would never get to correct temp with the front capped. For my refractor it works perfectly. Thank you thousand oaks.

## Features

- Black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars.
- These sheets are a quality product of Thousand Oaks Optical, Arizona, a manufacturer of safe solar filters for over 30 years. "Stronger than Mylar with the filtering properties protected within the substrate. Guaranteed five years."
- Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost.
- The sun will appear in a natural orange color when viewed through your telescope using this filter.
- WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DS7IFQS |
| Best Sellers Rank | #16 in Telescope Filters |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,208) |
| Date First Available | July 4, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.64 ounces |
| Item model number | BP-4 |
| Manufacturer | Thousand Oaks Optical |
| Product Dimensions | 4 x 4 x 0.1 inches |

## Product Details

- **Brand:** Thousand Oaks Optical
- **Coating Description:** No Coating
- **Material:** polymer
- **Photo Filter Effect Type:** Ultraviolet
- **Photo Filter Thread Size:** 1 Millimeters
- **Product Dimensions:** 4"L x 4"W
- **UPC:** 751738865415
- **Water Resistance Level:** Not Water Resistant

## Images

![4"x4" Solar Filter Sheet for Telescopes, Binoculars and Cameras - Image 1](https://m.media-amazon.com/images/I/41XAbdY2sAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Good Filter, Bargain Price
*by A***A on April 12, 2024*

Full disclosure: First solar eclipse photo op for me! I have multiple total, and partial, lunar eclipses in my experience base but no solar chops! Until now. The Thousand Oaks Optical brand solar filter is quite economical, if you're on a tight budget, or just frugal by nature. And there's also the argument against buying an optical glass, dedicated size, filter for one lens or telescope aperture! The T.O.O. filter is metallized Mylar film, not glass! You can buy the size for the largest lens or telescope you own and then adapt it to smaller lens sizes as needed, with a bit of additional fabrication. I adapted the 4" X 4" filter to fit the sunshade of a 70-300mm zoom lens, which I could fit on, or remove as needed. I fabricated a filter mount from white card stock and Scotch Magic Tape. As such, the fit was secure enough to not need any additional support. If it was really windy, a few pieces of Magic Tape would have secured it to the sunshade! I made some test exposures well before the event started and dialed in a starting exposure and captured the image in pic 1. Sunspots are visible in the center and left of center. Cloud cover interrupted the rest of the event, and pics 2 and 3 are marred by wispy clouds moving across the frame. As my location was several hundred miles east of totality, the eclipse was a partial for me. I was happy to have caught what I did and gained some experience from it too. The filter performed exactly as presented! Please note: The filter can be used, as delivered, by simply folding and taping the corners to whatever optical device you plan to use. However, there's a risk of leaving a gap through which sunlight can pass, causing damage to the eye or optical gear! There are a number of sites online dedicated to amateur telescope making that have information on fabricating and adapting all sorts of gadgets and accessories for astronomy Do it right, you only have one pair of eyes. Safe viewing and clear skies!! Hope this helps

### ⭐⭐⭐⭐⭐ Great product, great company.
*by A***R on August 3, 2020*

First off, the solar filter I got was very obviously from thousand oaks as it was written on the cardboard. So do not fear you will get an off brand as some reviews have mentioned. Works perfectly, I put it on my scope's lense cap then tested it with my phone before daring to use my eye. First light was only 40 times magnification and no apparent sunspots could be seen. Sun was yellow and looked like, well, the sun. When I went to 100 times magnification I found a very prominent sunspot, and watched it for a while. Very awesome thing to have as now I can use my scope in the daytime more. Please, as stated a million times, make sure it is properly working before you put your eye up to it. I do 5 checks before using it, some twice. Check for damage, tape is coming off, finger prints or oil, moisture damage, front and back, then firmness fitting so the wind can't blow it off (I have mine on my scoped cap so I added felt to the cap to make it fit snuggly and it is now very hard to take off which is perfect). Great product, clean views from what I can tell. Using it on a skywatcher 100ED Pro, very amazing. Can't say about use with reflectors yet as my 12 inch reflector is black and I worry it would never get to correct temp with the front capped. For my refractor it works perfectly. Thank you thousand oaks.

### ⭐⭐⭐⭐⭐ Worked Perfectly on my Canon 100-400mm Lens
*by J***Y on April 12, 2024*

I bought this small sheet of solar film 6 months before the 2024 eclipse to be sure I’d have it on hand and not have to overpay or run into shortages. Then I spent about an hour trying to find the tiny cardboard envelope among all my camera accessories… But I found it in time and assembled a filter to attach to my Canon 100-400mm lens. I trimmed about 1/2 inch off of one side so that it would slide into my screw-on filter holder and secured it to the lens with a bit of painter’s tape so that it wouldn’t slip out of the holder. It worked perfectly, and I was able to capture sharp, stunning images of the partial eclipse (I wasn’t in the path of totality). I saved the film as well as my solar eyeglasses so I’ll be able to enjoy the next eclipse - even if I have to travel to witness it !

## Frequently Bought Together

- 4"x4" Solar Filter Sheet for Telescopes, Binoculars and Cameras
- Solar Eclipse Glasses AAS Approved 2024 - Made in the USA CE and ISO Certified Safe Shades for Direct Sun Viewing (2 Pack)
- Solar Eclipse Glasses Approved 2024, (10 Pack) CE and ISO Certified Solar Eclipse Observation Glasses, Safe Shades for Direct Sun Viewing, Bonus Smartphone Photo Filter Lens, Blue Stars Design

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-02*