Focus stacking misused
Moderators: rjlittlefield, ChrisR, Chris S., Pau
Focus stacking misused
Focus stacking works for other subjects to
20 images
20 images
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Focus stacking
One of the most remarkable stacked image I have ever seen was a lightning storm. The photographer lived on a hill above a city and stacked about twenty or so lightning strikes into one image.
Mike
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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Image stacking?
Just the same, image stacking software allows us to produce images unknown beforehand. HDR (which is wildly abused and end up looking like velvet paintings) can also be applied to photomicroscopy. I don't know how many of us are old timers and remember water-bath development of black and white silver film for extended contrast ranges.
Mike
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
Re: Image stacking?
Ah, the old push-pull with TMX100, I used to underexpose and overdevelop to increase contrast (guess I qualify as an oldtimer )Olympusman wrote:I don't know how many of us are old timers and remember water-bath development of black and white silver film for extended contrast ranges.
Mike
It's not what you look at that matters, it's what you see - Henry David Thoreau
Re: Image stacking?
That new-fangled T-Max stuff, eh? Didn't hold a candle to Pan-X, Plus-X, and Tri-X. (Old-timer--who, me?)JW wrote:Ah, the old push-pull with TMX100, I used to underexpose and overdevelop to increase contrast (guess I qualify as an oldtimer )
--Chris
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Developing techniques
The newer emulsions were too thin to hold much developer for water bath development, so the technique kind of went by the way side. As for me, I overexpose B&W film a full stop and underdevelop 30% -- good exposure range and the highlights don't block up. I also agitate very little. Presoak, continuous tank inversion for the first thirty seconds, then one inversion every thirty seconds for the next 2.5 minutes, and then one inversion a minute for the remainder. Beautiful negatives.
I almost exclusively use D-23 film developer.
Mike
I almost exclusively use D-23 film developer.
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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Acutol
I have some Pyrogallic Acid and have tinkered with some of the staining developers, but geez they're a lot of work.
And on the topic of classic B&W films -- Verichrome Pan.
Mike
And on the topic of classic B&W films -- Verichrome Pan.
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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- Posts: 5090
- Joined: Sun Jan 15, 2012 12:31 pm
Acutol
Looked up the Acutol formula and I think I'll give it a try this summer with the 8X10 view camera. I see the magic ingredient Phenidone (of which I have slightly less than three pounds -- long story). Phenidone was the other ingredient in the POTA developer (the other being Sodium sulfite) which yielded a 20-stop range for photographing atom bomb tests back in the 40s and 50s. Strange negative requiring the highest polycontrast filters to get a decent image, but what a range.
Mike
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA