Ilford Reciprocity Calculator

An extremely simple and easy to use photography tool, Ilford Reciprocity Failure Calculatoris designed for all kinds of ILFORD Black and White Film, Perfect for Long exposure photography in low light situations.
Compatible with all film size 35mm, 120 medium format, 4 x 5 large format, 8 x 10 large format ,film and cameras, as well as pinhole camera photography.
Works excellent with long exposures done on Pinhole cameras using Ilford films.
Calculations are made from the information provided by Ilford in produced product Fact sheets and should work with all standard Ilford films currently in production which includes the following List.

PAN F PLUS (Recommended for long exposure)
FP4 PLUS
HP5 PLUS
DELTA 100 PROFESSIONAL (Recommended for long exposure)
DELTA 400 PROFESSIONAL
DELTA 3200 PROFESSIONAL
XP2 SUPER (B&W Film using color C41 Process)

Reciprocity Failure is a physical effect of film thus does not apply to Digital cameras
We take no responsibility for out come of developed film.
For long exposures.
We are not associated with "ILFORD PHOTO" or "HARMAN TECHNOLOGY Ltd" in any way.

remember for long exposure photography other long exposure calculators may need to be used same for things such as large format medium format 35mm or pin hole photography.

ND filters will alter Reciprocity times.