Cyanotype Exposure Times for today Sunday 15/09/24

Please note that the times below are approximate for sunlight exposing between 10am & 4pm.
Sunny:     3m
Light cloud:     7m
Medium cloud:     30m

Sunny = Clear sky.
Light cloud = You can clearly see the sun’s position through the clouds.
Medium cloud = You can not see the sun’s position through the clouds, but the clouds are bright.
Heavy cloud = It is not possible to give a time for dark heavy winter clouds. It can be more than 1-2 hours.

Times are based on the conditions below:
Exposure time: Between 10am & 4pm.
Location: Central UK, exposure outside, clear view of sun’s position without obstruction.
Glass: No (Some glass will filter UV light and may need a longer exposure).
Coating: Classic Formula on paper (dried overnight).
These times are only a guide to help exposing with the sun, you may need to adjust exposure times to suit your setup. Always do a step test if you need more accurate timings.

Try the new Cyanotype Exposure App

We are in final testing of a new Android app on the called Altxpo.

You Just point your phone screen at the sky to get an accurate exposure time in any weather.

If you would like a free copy, use the box below or email us and we will send a Google Play Store voucher to you.

You can see more about the app at altxpo.co.uk

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