Did you compensate for reciprocity failure with Velvia 50

[raylks]

I am a new slide shooter. I learnt that based on Fuji's advice, exposure compensation is required for exposure longer than 1 sec. But I wonder how many of you would compensate for such reciprocity failure with this film.

If I do not compensate for this, would it be the color more saturated than it is compensated.

Thanks.

[primoz]

I never bother too much with this for short times (up to few minutes). I believe it would be better if I would but even like this it's not that different so why to bother. For longer times I usually try to compensate... success of doing this is another story :)

[raylks]

Let me know whether I am right on your statement.
What you are referring as "short time" is from a portion of a second to 1 minute exposure, right? And so the "longer times" are, say 2 minutes or more, right?

[mbze430]

"No exposure correction or color balance compensation
is required for exposures within a shutter speed range of
1/4000 second to 1 second. However, for exposures of
4 seconds or longer, reciprocity-failure related color
balance and exposure compensations are required."

That is directly from Fujifilm. I usually don't shoot over 4sec on Velvia 50

Usually I stop at 4sec.

I have a shot of a waterfall on Velvia 50 posted on the forum somewhere....its 4 sec long

[jukas]

"No exposure correction or color balance compensation
is required for exposures within a shutter speed range of
1/4000 second to 1 second. However, for exposures of
4 seconds or longer, reciprocity-failure related color
balance and exposure compensations are required."

That is directly from Fujifilm. I usually don't shoot over 4sec on Velvia 50


The reciprocity info is as follows for over 4 seconds (they also recommend a color compensating filter)

4 sec +1/3 stop 5M CCF
8 sec +1/2 stop 7.5M CCF
16 sec +2/3 stop 10M CCF
32 sec +1 stop 12.5M CCF
64 sec - Not Recommended

Provia 100 handles long exposures much better:
1/4000th - 128sec - No Componsation
4min exp requires +1/3stop 2.5G CCF.
8 min - Not Recommended.

I'll be the first to admit I have zero clue what filters those are, it's just what I have listed in the Fujifilm product documentation.

[raylks]

So do I. And I wonder how many stops may be absorbed by using those filters suggested by Fuji. Anyway I am serious in doubt that my image may be underexposed as I haven't done any compensation for reciprocity failure. ( I haven't got my developed slide yet)

[raylks]

So do I. And I wonder how many stops may be absorbed by using those filters suggested by Fuji. Anyway I am serious in doubt that my image may be underexposed as I haven't done any compensation for reciprocity failure. ( I haven't got my developed slide yet)

[Jon]

.05 - .1 CC filters don't absorb much light - maybe 1/3 stop at most, and only in the suggested part of the spectrum (magenta filter, will hold back green).