Filters question {Fujifilm s5500}

[j_mcquillen]

But a polArizer also quadruples the required shutter speed, which – when exceeding 1 second – may increasingly result in 'reciprocity failure' (color shift).

If you're shooting digital, reciprocity failure won't be a problem. A longer exposure will mean more noise however.

 

[ladyphotog]

That makes sense, cosmo.
But a polArizer also quadruples the required shutter speed, which – when exceeding 1 second – may increasingly result in 'reciprocity failure' (color shift).

Reciprocity failure does not mean color shift, it is that light falls off over a certain period of time. Exposure = intensity x time.

 

[mysteryscribe]

quote: Reciprocity failure does not mean color shift, it is that light falls off over a certain period of time. Exposure = intensity x time.

Somebody did their homework.

In the good old days long exposures would effect a films colors. Long exposures did cause alot of color saturation giving those tripod wedding shots at night, a beautiful color shift can't repeat any other way. The same with the night sky... Looks black to the eye but a beautiful blue to the film... Probably why everyone thought it was an effect of the light values. It was more an effect of the film's absortion of color saturation I think. I could be wrong though. I'm sure someone will correct me.

To me retroporcity (sp) means i add a stop when it goes past a minute. Up till then I just deal with it.

 

[DocFrankenstein]

Reciprocity failure does not mean color shift, it is that light falls off over a certain period of time. Exposure = intensity x time.

Not that easy.

Usually when you get reciprocity failure you WILL get a color shift, because your film contains 3 emulsions and every emulsion's sensitivities differ from optimal/original with long exposures.

I don't know if the OP actually knew that, but he might've been trying to point it out.

 

[DocFrankenstein]

It was more an effect of the film's absortion of color saturation I think. I could be wrong though. I'm sure someone will correct me.

It might've been film, but digital night shots are just as saturated IMO