That is what surprises me, never seen such perfect round bubbles when I had air bells defects
That is what surprises me, never seen such perfect round bubbles when I had air bells defectsThis photo is the last frame. The 5th to last frame has 1 bubble, the 4th to last has like 10, and then the last 3 are full of bubbles like this.
That is what surprises me, never seen such perfect round bubbles when I had air bells defects
Me neither. With typical air bell cases, it's usually clusters of them and they tend to create honey-comb like patterns where they interact. These distinct, nearly perfectly round (or oval) shapes are...odd.
When you see clusters of bubbles that resemble honey combs it's usually foam. Random spots are air bells that's caused by static cling. The former can be cured by using a drop or two of Edwal LFN in the developer , the latter by pre soaking for a couple of minutes prior to developing or rapping the tank hard on the counter top.
I usually tap the tank hard on the palm of my hand after every agitation step. That way whatever bubbles or air bells that could be on the film are simply dislodged before they can cause further trouble.
That's probably the only really good tip I learned from lab classes.
I've never had a single bubble on my film.
That's why I favor the palm of my hand. It's hard enough to give the tank a good stop but not so hard as to break it.Well, for all you folks that have plastic tanks or are afraid of doing damage to your tanks by rapping them on a hard surface
I have a thick vinyl pad that I use for thumping the tank every time I put a new chemical in.
Well, for all you folks that have plastic tanks or are afraid of doing damage to your tanks by rapping them on a hard surface, I suggest a two to three minute pre soak before developing. Pour the water in and shake the whoopies outta the tank like a cocktail shaker (unless it's one that can't be inverted), or at least treat it like developer and agitate appropriately.
I have thumped plastic tanks on a thick vinyl pad and never had a problem. Whacking it with a hammer can be more problematical.
Well, since you aren't afraid of smacking your tank, my post doesn't pertain to you does it.
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