Silverlog Reciprocity vs PicResize

Silverlog Reciprocity calculates corrected exposure times for long exposures on film, compensating for reciprocity failure — the point where film loses sensitivity during extended exposures. HOW IT WORKS Select your film stock from a comprehensive database covering Kodak, Ilford, Fujifilm, Fomapan, CineStill, Lomography and more. Enter your metered exposure time and instantly see the compensated time you should actually use. Calculations use manufacturer-published reciprocity data or established empirical formulas, and each correction shows which method was used: interpolation from a published data table, or a Schwarzschild exponent formula. FEATURES • Over 70 film stocks with reciprocity data • Instant calculation — no submit buttons, results update live • Method shown with each correction — data table or Schwarzschild exponent • Built-in countdown timer for the corrected exposure • Favourite and recent films for quick access • Works offline — no internet connection needed • Clean, focused interface designed for use in the field • Dark mode support BUILT FOR PHOTOGRAPHERS Whether you're shooting Velvia at sunset, Tri-X under moonlight, or Delta 3200 in a cathedral, Silverlog Reciprocity gives you the corrected time without fumbling with charts or guesswork. Part of the Silverlog photography toolkit. No account required. No data collected.

Need to fix an image or ID photo size that does not meet the requirements? PicResize lets you easily change an image to any custom resolution in just a few steps. Lock the aspect ratio to keep images proportional, and automatically sync width and height while resizing. You can also export images as JPG or PNG, and adjust JPG compression quality to reduce file size while keeping the right balance of clarity and size. Whether you are preparing a photo for upload, editing an ID picture, or just resizing images for everyday use, PicResize gets it done fast. Key Features Custom image resolution Lock aspect ratio to prevent distortion Export as JPG or PNG Adjustable JPG compression quality Save directly to your photo library Unlimited Usage