Reciprocity failure

[RichardSperry]

Yes. The reciprocity police will not come knocking at your door if you don't follow it.


Steve

I dunno, sounds like Leigh is on the police force.

[Leigh]

It's a continuum. It's not a matter of at some point failure occurs.

Look at the Log H graph for any film.

The straight line between the toe and the shoulder is the exposure range over which the reciprocity law is valid.

This is true for any film.

- Leigh

[Leigh]

Yes. The reciprocity police will not come knocking at your door if you don't follow it.

No. They'll come knocking on your film.

- Leigh

[vinny]

where are the google police?
what is google?
a citation for redundancy is in order.

[RichardSperry]

Look at the Log H graph for any film.

The straight line between the toe and the shoulder is the exposure range over which the reciprocity law is valid.

This is true for any film.

- Leigh

If I learn what it is you wrote, how will that allow me to take better photos?

[E. von Hoegh]

If I learn what it is you wrote, how will that allow me to take better photos?

It may not make you take better pictures, but you'll waste less film. (winking smiley)

Post #23. http://www.largeformatphotography.in...Exposure/page3

[Leigh]

If I learn what it is you wrote, how will that allow me to take better photos?

If you understanding of the photographic process is as pathetically lacking as your posts would indicate, the only hope
is a substantial investment of time in studying the subject, and experimenting with various exposure combinations.

Otherwise, sally forth with your latest p&s, snapping at everything/body that ventures in front of your lens, hoping to
capture some recognizable image, while devouring electrons by the uncountable zillions.

- Leigh

[Pfiltz]

In general any exposure over 1 sec with film will need compensation for reciprocity. .

Stop right there for a minute and let me catch up.

What compensation? Where? The Lab, or in house developing? In camera? Which I wouldn't know where?

Thanks

[E. von Hoegh]

Stop right there for a minute and let me catch up.

What compensation? Where? The Lab, or in house developing? In camera? Which I wouldn't know where?

Thanks

You need to compensate with exposure and often development. It differs according to the film, and length of exposure. Why don't you google "reciprocity failure" and learn for yourself?

[E. von Hoegh]

If you understanding of the photographic process is as pathetically lacking as your posts would indicate, the only hope
is a substantial investment of time in studying the subject, and experimenting with various exposure combinations.

Otherwise, sally forth with your latest p&s, snapping at everything/body that ventures in front of your lens, hoping to
capture some recognizable image, while devouring electrons by the uncountable zillions.

- Leigh

Leigh, he can't "devour" electrons. He'll just use up lots of energy pushing them from one place to another.