Photography

Plan camera memory cards for photos and video with mirrored-slot capacity plus checks for spare reserve, burst recovery and sustained write speed.

Calculate near and far focus limits, total depth of field and hyperfocal distance, with optional blur tolerance, scene checks and setup comparison.

Calculate camera field width, height and angles from sensor size, focal length and distance, with optional target-fit checks and complete lens sweeps.

Plan a macro focus stack from magnification and aperture, with a programmable rail step plus frame-count and travel estimates for the measured subject.

Plan golden and blue hour windows for a location and date with custom sun-angle boundaries, ready-by times, direction and horizon cautions.

Adjust image color in your browser, review brightness and hue changes with clipping evidence, then export a transparent PNG or WebP or a JPEG.

Pick colors from local images using exact coordinates and area averaging or median sampling, with alpha handling and reusable CSS tokens.

Merge two to twelve local images into one ordered composition, with contain-or-crop fitting plus controllable spacing and background.

Add text or logo watermarks to up to ten images in your browser, preview every result, and keep the source files private and unchanged.

Match framing across camera formats through exact focal length and depth-of-field look, with crop adjustments and a practical lens choice.

Calculate the external ND stops needed for a metered scene, then compare fixed, stacked or variable filters for stills and video settings.

Crop a local portrait to current U.S. or UK paper-passport dimensions, check manual head size, and prepare a 300 ppi JPEG or print sheet.

Find passport, visa, or ID photo dimensions and check head-size fit before estimating print pixels or sheet capacity for the final crop.

Check whether a photo has enough usable pixels for a chosen print size and framing choice, with crop reserve and practical PPI guidance.

Calculate time-lapse frames, interval, clip length or shoot duration, with optional storage, battery, exposure and scheduling checks.