With a grad nd filter which is used to darken the sky you calulate the exposure without the grad nd. So with your 1min exposure you would not change this with the grad in place, this would reduce the exposure of the sky and darken it. This works fine where you have a bright sky relative to the rest of the frame.I appreciate all the advice and helpful comments. Good to know the exposure is decent.
A red filter will make the blue sky black or almost black, try a yellow or an orange filter.
A red filter will make the blue sky black or almost black, try a yellow or an orange filter.
When I tried a variety of filters with ACROS, I ended up rather confused. It seemed that yellow did almost nothing, orange did a touch of darkening, and red was closer to medium yellow as I was used to for other films. ACROS has an different spectral response- ortho-pan, not simple pan. Maybe this makes a difference? When you say the sky might go black with a red filter, is this based on ACROS specifically?
OP, your image looks very typical of ACROS in my experience. A certain flatness, lots of midtones. I've used it for years and simply assume that I will be adding contrast in printing/processing. And that I will be doing some significant dodging and burning to pull areas up and down in both tone and contrast. FYI, the Bay Area this time of year will have days after a storm goes through with very clear dark blue skies but most days the sky is pretty bland.
How were you developing the Acros, this result, well exposed etc, doesn't look like Acros? Is this a sc*n of a negative or a print? It looks very flat and lacking in contrast, this is not the place to discuss that kind of curve manipulation but to get it "right" in camera with a yellow/orange/red/polariser filter you still need development/sc*n that isn't go to flatten the tones which appears to me to have happened.
I'm also not sure why you wanted to use such an aggressive ND filter, in the scene the water is so far away from the foreground that any smoothing effect is rather lost and the definition of the clouds is diminished, that is your artistic decision but I can't help but wonder if a standard exposure would not have worked just as well. A neutral grad for the sky will work but given the highlight preservation of film you could probably equally well "recover" the sky with enlarger manipulation in a print (although granted fixing in camera is a good idea) or with an unmentionable graduated digi**l filer post sc*n.
Note: I appreciate the demarcation of analog/digital but in this kind of discussion where we are looking at a digital image it is difficult to give only specific analog advice when what is posted, unavoidably, is in the digital domain.
Is there an FAQ section to guide us or do we just push it to the point of being moderated? (I know start a new thread)
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