Silica Gel Usage Calculator

Protect thousands of dollars in camera gear from lens fungus by keeping humidity in the safe zone. This calculator tells you exactly how much silica gel you need for your dry box, camera bag, or storage cabinet, based on your current humidity level.

Calculate precise recharge times at safe temperatures because, those color-changing crystals don't help if you've cooked them at the wrong temperature.

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Depth of Field Calculator

Plan your shot or preview your results. Tell the calculator how much depth of field you need and it'll work out the aperture and distance to achieve it — ideal for macro and studio work where getting it right in-camera saves time.

Or flip it around: enter your lens, aperture, and shooting distance to see the exact focus range with a visual diagram, near and far limits, and hyperfocal distance. Works with all sensor formats.

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Equipment Investment Calculator

Should you buy that expensive lens or keep renting? This calculator cuts through the emotional decision and shows you the real numbers.

Enter the purchase price and rental costs, tell it how often you'll use the gear, and see exactly when buying pays for itself. Get honest break-even analysis with 5-year projections, so you can make smart gear decisions based on actual usage, not wishful thinking.

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Print Size Calculator

Stop guessing. Find out the maximum size you can print from your photo at gallery, standard, or large format quality - or flip it around and see exactly how many megapixels you need for your target print size.

Accounts for different print media like canvas, metal, and fine art paper, plus viewing distance recommendations.

Includes LPI/DPI converter for different print media.

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Field of View Calculator

Calculate field of view for different lens and sensor combinations. Plan your shots and understand lens coverage for composition.

Horizontal and vertical field of view
Subject distance calculations
Crop factor comparisons
Multiple sensor formats
Lens comparison tool

Coming Soon

Macro Photography Calculator

Specialized calculations for macro photography including magnification ratios, working distances, and lighting setups.

Magnification ratio calculations
Working distance optimization
Focus stacking parameters
Flash power calculations
Extension tube calculations