Canon Camera Weight Calculator

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Canon Camera Weight Calculator

Your Comprehensive Tool for Gear Portability Analysis

Canon Camera Weight Calculator

Accurately calculate the total weight of your Canon camera setup by inputting the weights of your individual components.

Enter the weight of your Canon camera body in grams. E.g., EOS R5: ~738g, EOS M50: ~387g.
Enter the weight of your most commonly used lens in grams. E.g., RF 24-105mm F4 L IS USM: ~525g, EF 50mm f/1.8 STM: ~160g.
Number of spare batteries you typically carry. Standard LP-E6NH: ~80g.
Weight of a typical SD or CFexpress card is minimal, around 5-10g.
Weight of your Speedlite flash, if carried. E.g., Speedlite EL-1: ~915g (without battery).
Weight of your empty camera bag.
Weight of other items like tripods, filters, cleaning kits, etc.

Your Total Gear Weight

— g
Camera Body: — g
Primary Lens: — g
Batteries: — g
Memory Cards: — g
External Flash: — g
Camera Bag: — g
Other Accessories: — g

Formula: Total Weight = Camera Body Weight + Primary Lens Weight + (Battery Count * Battery Weight) + (Memory Card Count * Memory Card Weight) + External Flash Weight + Camera Bag Weight + Other Accessories Weight.

Weight Distribution of Your Canon Camera Setup

Component Weight Breakdown

Component Weight (g)
Canon Camera Body
Primary Lens
Batteries
Memory Cards
External Flash
Camera Bag
Other Accessories
Total Weight

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The Canon camera weight calculator is a specialized online tool designed to help photographers and videographers precisely determine the cumulative weight of their Canon camera gear. This includes the camera body, lenses, batteries, memory cards, external flashes, camera bags, and any other accessories they commonly carry. Understanding the total weight is crucial for assessing portability, planning travel, choosing appropriate support equipment, and ensuring comfort during long shooting sessions. This Canon camera weight calculator provides an immediate, quantifiable metric for your entire shooting kit.

Who should use it? This tool is invaluable for anyone who owns or plans to purchase Canon camera equipment. This includes:

  • Professional photographers and videographers who need to manage their gear for travel and long shoots.
  • Hobbyist photographers who want to optimize their kit for hiking, vacations, or everyday carry.
  • Content creators who frequently transport their equipment to different locations.
  • Anyone comparing different Canon camera bodies or lens combinations based on their physical bulk and weight.

Common misconceptions about camera weight: A frequent misconception is that only the camera body and primary lens contribute significantly to the weight. In reality, batteries, chargers, spare lenses, flashes, and even the bag itself can add substantial kilograms to the total load. Another misconception is that lighter gear always equates to better performance, which is not necessarily true. Often, professional-grade equipment that offers superior features and image quality is heavier. The Canon camera weight calculator helps demystify these perceptions by providing concrete numbers.

{primary_keyword} Formula and Mathematical Explanation

The core principle behind the Canon camera weight calculator is straightforward: summation. It adds up the individual weights of all components that make up a photographic setup. The formula is designed to be inclusive of all commonly carried items.

The formula is expressed as: Total Gear Weight = Camera Body Weight + Primary Lens Weight + (Number of Batteries * Weight Per Battery) + (Number of Memory Cards * Weight Per Memory Card) + External Flash Weight + Camera Bag Weight + Other Accessories Weight

Variable Explanations:

Variable Meaning Unit Typical Range (Examples)
Camera Body Weight The mass of the Canon camera body itself. grams (g) 387g (EOS M50) to 850g (EOS R3)
Primary Lens Weight The mass of the lens most frequently used or currently attached. grams (g) 160g (EF 50mm f/1.8 STM) to 1250g (RF 100-500mm F4.5-7.1 L IS USM)
Number of Batteries The quantity of spare camera batteries carried. count 0 to 5+
Weight Per Battery Average weight of a single camera battery (often proprietary). grams (g) ~70g (LP-E17) to ~100g (LP-E6NH)
Number of Memory Cards The quantity of memory cards carried. count 1 to 10+
Weight Per Memory Card Average weight of a single memory card. grams (g) ~5g (SD Card) to ~15g (CFexpress Type A)
External Flash Weight The mass of the Speedlite or other external flash unit. grams (g) 200g (Speedlite EL100) to 915g (Speedlite EL-1)
Camera Bag Weight The mass of the empty camera bag or backpack. grams (g) 300g (small sling) to 2500g (large backpack)
Other Accessories Weight The combined mass of additional gear like filters, chargers, remote triggers, spare straps, cleaning supplies, etc. grams (g) 50g to 1000g+
Total Gear Weight The sum of all components, representing the total carrying load. grams (g) Calculated

This calculation is linear and additive. The Canon camera weight calculator simplifies this by using typical weights for batteries and memory cards, allowing users to focus on the primary variables like body, lens, and bag.

Practical Examples (Real-World Use Cases)

Let's explore how the Canon camera weight calculator can be applied in realistic scenarios.

Example 1: Travel Photographer's Everyday Kit

A travel photographer plans a day trip exploring a city. They opt for a compact mirrorless setup.

  • Camera Body Weight: Canon EOS RP (485g)
  • Primary Lens Weight: RF 24-105mm F4-7.1 IS STM (395g)
  • Number of Batteries: 1 spare (Total 2)
  • Number of Memory Cards: 2
  • External Flash Weight: None
  • Camera Bag Weight: Small sling bag (450g)
  • Other Accessories Weight: Power bank, wallet, phone (300g)

Using the Canon camera weight calculator with these inputs:

  • Camera Body: 485g
  • Lens: 395g
  • Batteries (2 * 80g): 160g
  • Memory Cards (2 * 5g): 10g
  • Flash: 0g
  • Bag: 450g
  • Accessories: 300g
Total Calculated Weight: 1700g (or 1.7 kg)

Interpretation: This setup is relatively lightweight and manageable for a full day of walking. The photographer can comfortably carry this without significant fatigue. This also informs decisions about choosing an ergonomic camera strap.

Example 2: Wildlife Photographer's Heavy-Duty Setup

A wildlife photographer heads out for a day in a national park, needing reach and professional features.

  • Camera Body Weight: Canon EOS R5 (738g)
  • Primary Lens Weight: RF 100-500mm F4.5-7.1 L IS USM (1370g)
  • Number of Batteries: 3 spare (Total 4)
  • Number of Memory Cards: 3
  • External Flash Weight: None (using natural light)
  • Camera Bag Weight: Medium-sized backpack (1200g)
  • Other Accessories Weight: Water bottle, snacks, rain cover, monopod head (500g)

Using the Canon camera weight calculator with these inputs:

  • Camera Body: 738g
  • Lens: 1370g
  • Batteries (4 * 80g): 320g
  • Memory Cards (3 * 10g): 30g
  • Flash: 0g
  • Bag: 1200g
  • Accessories: 500g
Total Calculated Weight: 4158g (or approx. 4.16 kg)

Interpretation: This setup is significantly heavier. The photographer needs to be prepared for the physical exertion. This weight calculation strongly suggests the need for a robust camera backpack designed for heavy loads and potentially a monopod or tripod for extended shooting periods. Understanding this weight also influences decisions about hiking trails and the overall duration of the outing. It emphasizes the importance of a sturdy camera support system.

How to Use This Canon Camera Weight Calculator

Using the Canon camera weight calculator is simple and intuitive. Follow these steps to get an accurate weight assessment of your gear:

  1. Locate Component Weights: Find the specifications for your specific Canon camera body and lens. These are usually available on the manufacturer's website or in product manuals. For common items like batteries and memory cards, use the provided typical weights or look up your specific models.
  2. Input Camera Body Weight: Enter the weight of your Canon camera body in grams into the "Canon Camera Body Weight (g)" field.
  3. Input Primary Lens Weight: Enter the weight of your main lens in grams into the "Primary Lens Weight (g)" field.
  4. Specify Battery and Card Counts: Enter the number of spare batteries and memory cards you typically carry. The calculator uses default average weights for these.
  5. Input Flash Weight: If you use an external Speedlite or other flash, enter its weight in grams. If not, leave it at 0.
  6. Input Bag Weight: Enter the weight of your camera bag (without any gear inside) in grams.
  7. Add Other Accessories: Sum the weights of any other essential items (filters, cleaning kits, chargers, etc.) and enter the total in grams into the "Other Accessories Weight (g)" field.
  8. Calculate: Click the "Calculate Total Weight" button.

How to read results: The calculator will display:

  • Main Result: The prominently displayed total weight of your entire setup in grams.
  • Intermediate Values: A breakdown of the weight contributed by each major component category.
  • Table and Chart: A visual and tabular representation of the weight distribution across your gear.

Decision-making guidance: The total weight is a key metric.

  • Under 2kg: Generally considered light and easy to carry for extended periods.
  • 2kg – 4kg: Moderate weight, manageable for most photographers, but may require a comfortable, supportive bag and perhaps a camera strap upgrade.
  • Over 4kg: Heavy load, requiring careful consideration of bag ergonomics, physical fitness, and potentially support gear like monopods or tripods.
Use this information to choose the right camera bag, plan your carrying strategy, and assess the physical demands of your shooting excursions.

Key Factors That Affect Canon Camera Weight Results

While the Canon camera weight calculator provides a precise calculation based on inputs, several real-world factors can influence the actual weight you carry and perceive:

  • Lens Selection: This is often the second heaviest component after the bag for many users. Larger telephoto lenses, especially professional f/2.8 zooms or f/1.2 primes, can significantly increase the total weight. Conversely, compact prime lenses or kit zooms keep the weight down. The choice between a single versatile zoom versus multiple prime lenses also impacts total weight.
  • Camera Body Type: Canon offers a range of bodies from compact APS-C mirrorless (like EOS M series or R100) to full-frame professional DSLRs (like EOS-1D X Mark III) and high-end mirrorless (like EOS R3 or R5). The difference in weight between these bodies can be hundreds of grams, affecting the overall setup load.
  • Accessory Loadout: Beyond the essentials, photographers may carry extra batteries, chargers, external hard drives, laptop computers for editing on the go, larger tripods, gimbal stabilizers, multiple filters, drones, or lighting equipment. Each of these adds considerable weight.
  • Bag Choice and Design: The camera bag itself is a significant contributor. A robust, padded backpack designed for professional gear will naturally weigh more than a small, minimalist sling bag. The internal organization and padding materials add to the bag's empty weight.
  • Number of Lenses: While the calculator focuses on the *primary* lens, carrying multiple lenses for different focal lengths dramatically increases the total weight. A photographer might carry a wide-angle, a standard zoom, and a telephoto prime, each adding its own mass.
  • Durability vs. Portability Trade-off: Professional-grade camera bodies and lenses are often built with more durable materials (like magnesium alloy) and incorporate more complex internal mechanisms (like extensive weather sealing or advanced stabilization), which contributes to higher weight compared to entry-level consumer gear.
  • Battery Technology: Newer, higher-capacity batteries might be slightly heavier than older ones, but the primary impact comes from carrying multiple spares. The weight per battery is a crucial factor when calculating the total battery load.
  • Environmental Gear: Depending on the shooting conditions, a photographer might add items like rain covers, protective sleeves, or even portable power stations, further increasing the overall carrying weight.

Frequently Asked Questions (FAQ)

Q1: What are typical weights for Canon camera bodies and lenses?
Canon offers a wide range. Compact APS-C bodies like the EOS M50 Mk II weigh around 387g. Full-frame mirrorless like the EOS R6 Mark II is about 670g (body only). Professional bodies like the EOS R3 are around 822g. Lenses vary immensely: a compact 50mm prime might be 160g, while a professional 70-200mm f/2.8 zoom can exceed 1kg, and super-telephotos can be 2kg or more. Our calculator uses common examples, but always check your specific models.
Q2: How much does a typical Canon spare battery weigh?
Most modern Canon mirrorless and DSLR cameras use batteries like the LP-E6NH or LP-E17. The LP-E6NH (used in R5, R6, 5D series) weighs approximately 80g. The LP-E17 (used in EOS M and entry-level R series) weighs around 50-60g. The calculator uses a general average.
Q3: Should I include the weight of my tripod in the calculator?
The calculator has a field for "Other Accessories Weight". If you are carrying a tripod, you should definitely include its weight there. Tripods can range from under 500g for travel models to over 3kg for heavy-duty professional ones. A significant component of your total load.
Q4: Does the calculator account for multiple lenses?
The calculator has a field for "Primary Lens Weight". If you carry multiple lenses, you should sum the weights of all lenses you intend to carry and input that total into the "Primary Lens Weight (g)" field, or add it to "Other Accessories Weight" if you prefer to keep the primary lens field for just one. It's best to sum all lens weights for an accurate total.
Q5: Why is my camera bag weight listed separately?
The camera bag itself has a significant weight, independent of the gear inside. Separating it allows you to see the contribution of the bag and also allows you to calculate the weight of just the gear if needed. Knowing the bag's base weight helps in selecting a lighter bag if portability is a major concern.
Q6: Can I convert grams to kilograms or pounds?
Yes, 1000 grams equals 1 kilogram. To convert to pounds, multiply kilograms by 2.20462. The calculator displays results in grams for precision, but you can easily do the conversion manually or use an online converter for larger units.
Q7: What's considered a "heavy" setup for a photographer?
Generally, anything over 4-5kg (8.8-11 lbs) starts to be considered a heavy setup, especially if you're carrying it for extended periods or hiking. Professional setups with multiple large lenses, bodies, and accessories can easily exceed 7-10kg. This weight necessitates careful planning regarding physical stamina and support gear.
Q8: How does this relate to deciding on a camera?
The Canon camera weight calculator helps in comparing the overall weight of different potential setups. If you're considering upgrading to a larger full-frame body and a heavy professional lens, this tool can quantify the impact on your total carrying weight, helping you make a more informed decision that balances performance with portability needs. It's a key factor in the DSLR vs Mirrorless weight discussion.

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// Default weights for calculations var defaultBatteryWeight = 80; // grams (e.g., LP-E6NH) var defaultMemoryCardWeight = 5; // grams (e.g., SD card) // Function to validate input function validateInput(id, min, max, errorMessageId) { var inputElement = document.getElementById(id); var value = parseFloat(inputElement.value); var errorElement = document.getElementById(errorMessageId); errorElement.textContent = "; // Clear previous error if (isNaN(value)) { errorElement.textContent = 'Please enter a valid number.'; return false; } if (value max) { errorElement.textContent = 'Value exceeds the maximum allowed.'; return false; } return true; } // Function to calculate total weight function calculateWeight() { var isValid = true; isValid = validateInput('cameraBodyWeight', 0, undefined, 'cameraBodyWeightError') && isValid; isValid = validateInput('lensWeight', 0, undefined, 'lensWeightError') && isValid; isValid = validateInput('batteryCount', 0, 5, 'batteryCountError') && isValid; isValid = validateInput('memoryCardCount', 0, 10, 'memoryCardCountError') && isValid; isValid = validateInput('flashWeight', 0, undefined, 'flashWeightError') && isValid; isValid = validateInput('bagWeight', 0, undefined, 'bagWeightError') && isValid; isValid = validateInput('accessoryWeight', 0, undefined, 'accessoryWeightError') && isValid; if (!isValid) { document.getElementById('mainResult').textContent = '– g'; document.getElementById('intermediateBodyWeight').innerHTML = 'Camera Body: — g'; document.getElementById('intermediateLensWeight').innerHTML = 'Primary Lens: — g'; document.getElementById('intermediateBatteryWeight').innerHTML = 'Batteries: — g'; document.getElementById('intermediateMemoryCardWeight').innerHTML = 'Memory Cards: — g'; document.getElementById('intermediateFlashWeight').innerHTML = 'External Flash: — g'; document.getElementById('intermediateBagWeight').innerHTML = 'Camera Bag: — g'; document.getElementById('intermediateAccessoryWeight').innerHTML = 'Other Accessories: — g'; // Clear table document.getElementById('tableBodyWeight').textContent = '–'; document.getElementById('tableLensWeight').textContent = '–'; document.getElementById('tableBatteryWeight').textContent = '–'; document.getElementById('tableMemoryCardWeight').textContent = '–'; document.getElementById('tableFlashWeight').textContent = '–'; document.getElementById('tableBagWeight').textContent = '–'; document.getElementById('tableAccessoryWeight').textContent = '–'; document.getElementById('tableTotalWeight').textContent = '–'; return; } var cameraBodyWeight = parseFloat(document.getElementById('cameraBodyWeight').value); var lensWeight = parseFloat(document.getElementById('lensWeight').value); var batteryCount = parseInt(document.getElementById('batteryCount').value); var memoryCardCount = parseInt(document.getElementById('memoryCardCount').value); var flashWeight = parseFloat(document.getElementById('flashWeight').value); var bagWeight = parseFloat(document.getElementById('bagWeight').value); var accessoryWeight = parseFloat(document.getElementById('accessoryWeight').value); var batteryTotalWeight = batteryCount * defaultBatteryWeight; var memoryCardTotalWeight = memoryCardCount * defaultMemoryCardWeight; var totalWeight = cameraBodyWeight + lensWeight + batteryTotalWeight + memoryCardTotalWeight + flashWeight + bagWeight + accessoryWeight; document.getElementById('mainResult').textContent = totalWeight.toFixed(0) + ' g'; document.getElementById('intermediateBodyWeight').innerHTML = 'Camera Body: ' + cameraBodyWeight.toFixed(0) + ' g'; document.getElementById('intermediateLensWeight').innerHTML = 'Primary Lens: ' + lensWeight.toFixed(0) + ' g'; document.getElementById('intermediateBatteryWeight').innerHTML = 'Batteries: ' + batteryTotalWeight.toFixed(0) + ' g'; document.getElementById('intermediateMemoryCardWeight').innerHTML = 'Memory Cards: ' + memoryCardTotalWeight.toFixed(0) + ' g'; document.getElementById('intermediateFlashWeight').innerHTML = 'External Flash: ' + flashWeight.toFixed(0) + ' g'; document.getElementById('intermediateBagWeight').innerHTML = 'Camera Bag: ' + bagWeight.toFixed(0) + ' g'; document.getElementById('intermediateAccessoryWeight').innerHTML = 'Other Accessories: ' + accessoryWeight.toFixed(0) + ' g'; document.getElementById('resultsExplanation').textContent = 'This calculation represents the total physical weight of your current Canon camera setup.'; // Update table document.getElementById('tableBodyWeight').textContent = cameraBodyWeight.toFixed(0); document.getElementById('tableLensWeight').textContent = lensWeight.toFixed(0); document.getElementById('tableBatteryWeight').textContent = batteryTotalWeight.toFixed(0); document.getElementById('tableMemoryCardWeight').textContent = memoryCardTotalWeight.toFixed(0); document.getElementById('tableFlashWeight').textContent = flashWeight.toFixed(0); document.getElementById('tableBagWeight').textContent = bagWeight.toFixed(0); document.getElementById('tableAccessoryWeight').textContent = accessoryWeight.toFixed(0); document.getElementById('tableTotalWeight').textContent = totalWeight.toFixed(0); // Update chart updateChart(cameraBodyWeight, lensWeight, batteryTotalWeight, memoryCardTotalWeight, flashWeight, bagWeight, accessoryWeight, totalWeight); } // Function to reset calculator inputs to sensible defaults function resetCalculator() { document.getElementById('cameraBodyWeight').value = 680; // EOS R6 body approx document.getElementById('lensWeight').value = 450; // RF 24-105mm F4 L IS USM approx document.getElementById('batteryCount').value = 2; document.getElementById('memoryCardCount').value = 3; document.getElementById('flashWeight').value = 300; // Speedlite 430EX III-RT approx document.getElementById('bagWeight').value = 800; // Medium bag approx document.getElementById('accessoryWeight').value = 200; // Filters, cleaning kit etc. // Clear errors document.getElementById('cameraBodyWeightError').textContent = "; document.getElementById('lensWeightError').textContent = "; document.getElementById('batteryCountError').textContent = "; document.getElementById('memoryCardCountError').textContent = "; document.getElementById('flashWeightError').textContent = "; document.getElementById('bagWeightError').textContent = "; document.getElementById('accessoryWeightError').textContent = "; calculateWeight(); // Recalculate with default values } // Function to copy results function copyResults() { var mainResult = document.getElementById('mainResult').textContent; var intermediateBody = document.getElementById('intermediateBodyWeight').textContent.replace('Camera Body: ', "); var intermediateLens = document.getElementById('intermediateLensWeight').textContent.replace('Primary Lens: ', "); var intermediateBattery = document.getElementById('intermediateBatteryWeight').textContent.replace('Batteries: ', "); var intermediateMemoryCard = document.getElementById('intermediateMemoryCardWeight').textContent.replace('Memory Cards: ', "); var intermediateFlash = document.getElementById('intermediateFlashWeight').textContent.replace('External Flash: ', "); var intermediateBag = document.getElementById('intermediateBagWeight').textContent.replace('Camera Bag: ', "); var intermediateAccessory = document.getElementById('intermediateAccessoryWeight').textContent.replace('Other Accessories: ', "); var explanation = document.getElementById('resultsExplanation').textContent; var resultsText = "Canon Camera Weight Calculator Results:\n\n"; resultsText += "Total Gear Weight: " + mainResult + "\n"; resultsText += "————————————\n"; resultsText += "Breakdown:\n"; resultsText += "- Camera Body: " + intermediateBody + "\n"; resultsText += "- Primary Lens: " + intermediateLens + "\n"; resultsText += "- Batteries: " + intermediateBattery + "\n"; resultsText += "- Memory Cards: " + intermediateMemoryCard + "\n"; resultsText += "- External Flash: " + intermediateFlash + "\n"; resultsText += "- Camera Bag: " + intermediateBag + "\n"; resultsText += "- Other Accessories: " + intermediateAccessory + "\n\n"; resultsText += "Assumptions:\n"; resultsText += "- Battery Weight: " + defaultBatteryWeight + "g each\n"; resultsText += "- Memory Card Weight: " + defaultMemoryCardWeight + "g each\n\n"; resultsText += explanation; // Use a temporary textarea to copy var textArea = document.createElement("textarea"); textArea.value = resultsText; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied to clipboard!' : 'Copy failed'; console.log(msg); // Or display a message to the user } catch (err) { console.log('Error copying results', err); // Or display error message } document.body.removeChild(textArea); } // Chart Logic var weightChart; // Declare chart variable globally function updateChart(body, lens, batteries, cards, flash, bag, accessories, total) { var ctx = document.getElementById('weightDistributionChart').getContext('2d'); // Destroy previous chart instance if it exists if (weightChart) { weightChart.destroy(); } // Prepare data for chart var labels = ['Camera Body', 'Primary Lens', 'Batteries', 'Memory Cards', 'Flash', 'Bag', 'Accessories']; var dataValues = [body, lens, batteries, cards, flash, bag, accessories]; // Filter out zero values to prevent empty slices and improve clarity var filteredLabels = []; var filteredDataValues = []; for (var i = 0; i 0) { filteredLabels.push(labels[i]); filteredDataValues.push(dataValues[i]); } } // Create the chart weightChart = new Chart(ctx, { type: 'pie', // Changed to Pie chart for distribution data: { labels: filteredLabels, datasets: [{ label: 'Weight (g)', data: filteredDataValues, backgroundColor: [ 'rgba(0, 74, 153, 0.7)', // Blue 'rgba(40, 167, 69, 0.7)', // Green 'rgba(255, 193, 7, 0.7)', // Yellow 'rgba(108, 117, 125, 0.7)', // Grey 'rgba(220, 53, 69, 0.7)', // Red 'rgba(0, 123, 255, 0.7)', // Primary Blue 'rgba(23, 162, 184, 0.7)' // Teal ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)', 'rgba(255, 193, 7, 1)', 'rgba(108, 117, 125, 1)', 'rgba(220, 53, 69, 1)', 'rgba(0, 123, 255, 1)', 'rgba(23, 162, 184, 1)' ], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, plugins: { legend: { position: 'top', }, tooltip: { callbacks: { label: function(context) { var label = context.label || "; if (label) { label += ': '; } if (context.raw !== null) { label += context.raw + 'g'; } return label; } } } } } }); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { calculateWeight(); }); // Add event listeners for real-time updates document.getElementById('cameraBodyWeight').addEventListener('input', calculateWeight); document.getElementById('lensWeight').addEventListener('input', calculateWeight); document.getElementById('batteryCount').addEventListener('input', calculateWeight); document.getElementById('memoryCardCount').addEventListener('input', calculateWeight); document.getElementById('flashWeight').addEventListener('input', calculateWeight); document.getElementById('bagWeight').addEventListener('input', calculateWeight); document.getElementById('accessoryWeight').addEventListener('input', calculateWeight);

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