Free Focal Length Analyzer: Find Your Ideal Camera Lens

Upload your photo archive to discover your true focal length preferences. This free online lens analyzer scans your image metadata to identify your most used focal lengths, helping you decide which prime or zoom lens to buy next based on your actual shooting habits.

Focal Length Analyzer

Analyze RAW and JPEG files locally across multiple camera systems. All processing happens securely in your browser.

How many folders do you want to analyze? 1 Folder 2 Folders 3 Folders 4 Folders 5 Folders

Focal Length Rounding: Standard Primes Nearest Whole Number Exact Decimal Values

Chart Display Type: Bar Chart Pie Chart Doughnut Chart

Intelligent Gear Recommendations

Show recommendations for: Full Frame System APS C System (Nikon, Sony, Fuji) APS C System (Canon) Micro Four Thirds System

Ranked Breakdown

How to Use the Free Focal Length Analyzer

• Select Folders: Choose the folders containing your RAW or JPEG files. All processing is done locally in your browser for complete privacy.
• Run Analysis: The tool scans the EXIF data to extract the exact focal length used for every single shot.
• Review the Recommendations: Look at the generated bar chart and the smart lens buying recommendations to see if you favor wide angle, standard, or telephoto lenses.

How the Lens Recommendation Math Works

Instead of plotting raw, scattered numbers like 27mm or 43mm, this tool uses a proximity algorithm to group your focal lengths into standard photography lens buckets. Here is exactly what happens under the hood:

• Data Extraction: The tool reads the base focal length from the EXIF header of each uploaded image.
• Standardization: It maps raw numbers to the nearest common prime lens equivalent. For example, shots taken between 31mm and 39mm are automatically grouped into the standard 35mm bucket.
• Cluster Analysis: It calculates the exact percentage of your total shots that fall into each standardized bucket to find your true peaks.
• Logic Thresholds: The script applies conditional logic to your peaks. If over a certain percentage of your shots fall heavily into the 50mm and 85mm buckets, the algorithm recommends purchasing a portrait prime lens. If your shots are evenly spread from wide to telephoto without a clear peak, it recommends sticking to a versatile 24 to 70mm or 24 to 105mm standard zoom.

Want a More Comprehensive Analysis?

Curious about your other EXIF data and exposure metrics like ISO, Shutter Speed, and Aperture? Want to see how they correlate to each other or discover what time of day you take the most photos?

Try the Free EXIF Exposure Dashboard