Our experiences are complementary thenMy experience with fluorescent tubes
Hypothetically these are all concerns, but the paper or some kind of problem with mild fogging seems more likely. Assuming the RA4 developer was mixed correctly of course, but I imagine you verified this already.My only other thoughts are some weird chemical residue in the Nova purchased secondhand (though I cleaned, flushed, and dried it and used Steradent tablets in the tanks), hard UK water contamination (?), or all of the ADOX RA4 batches somehow causing this at the chemical level.
I have used one with black and white - it is well put together and easy to handle and seems to do an excellent job holding the negatives flat and in place.Anyone had experience using the LPL 6x7 glassless holder?
The problem is that some films, under certain conditions (humidity) can exhibit newton rings also on the emulsion side. That's probably what you got.AN glass (top only)
Thanks all - the intense red fogging problem has been sorted at last! Somewhere between moving internal darkroom locations to the larger space and the new Fuji CA RA4 paper that Hell, maybe even a new enlarger lamp was necessary? Who knows but some great suggestions along the way.
Curiously, just to add insult to injury I was experiencing some Newton rings last night, which is bizarre given I'd invested in AN glass (top only) for my LPL Universal Neg Carrier.
Have used another C7700 with the AN glass in the past as well and have never run into this issue before. Is there any other optical phenomenon/condition that can cause this to occur even when *using* the LPL AN glass insert? Curiously it happened on one Portra 400 neg but not another from another roll. Although I did use some paper in the neg carrier to increase the distance the second time around. An intermittent issue perhaps. Humidity?
Anyone had experience using the LPL 6x7 glassless holder? Wasn't sure about my Makina 67's frame width being compatible with it given 6x7's micro variations within the standard but it sure would be nice to stop messing around with dust, AN glass that doesn't even work, and poorly made plastic border toggles...
Open to suggestions for DIY workarounds to stop Newton Rings from happening too if anyone's had success there, using 1mm cardboard pieces around neg, etc.?
I can't speak for others but I am unsure where this yellow staining is on the print margins. Can you mark the area(s). ThanksGeez, nothing? Anyone...
I had just assumed that this line which isn't so distinctive on the bed cover as on the edge of the pillow was a difference in the amount of natural light hitting that area. The skirting board on the bottom of the corner wall seems darker than the skirting board under the clothes but I had assumed this was again because of the shading in the room. The book's cover does not seemed to have lightened either.If it's the darker band on the right hand side of the print,, then I'd say it looks like it should either be on the film, or it's a part of the paper that has somehow received a little exposure - enough to act as a preflash, but not enough to create densities in the whites.
The new one you posted is puzzling because of the distinct line bottom right where the issue stops. You have a broad white border with some of it being affected and the very outside not affected. That seems like a key to tracking down where this is happening.
Are you using an easel that creates a narrow border, but then the edge of the negative carrier is what is creating the actual edge of the print image area? If so, you know your paper is being fogged while it sits in the easel.
Try some prints without.I print using a Duka 50 (at '5' power)
Yes, based on your information, this is indeed the place to look at first. Especially the print with the woman and the blue jar suggests it might be something that happens when the paper is already on the easel - assuming that the square fog boundaries in the lower right corner match the setting of the easel's blades at some stage in the handling process.If it could only occurring somewhere around the enlarger/easel area and isn't to do with storage then perhaps it's a light-leak or fog from another light source somewhere.
Yes, you'd expect that - blueish, in any case. In the image with the woman, there's an area of fog in the bottom center that seems to be in the right color range for what you'd expect with sodium vapor light, although most of the fogging seems warmer. However, it's always slightly unpredictable how fog turns out because it's usually not filtered through typical Y/M filters and the colored base of C41 film. Hence, it sometimes comes out slightly differently from what you'd expect. However, it's unlikely to end up at the opposite end of the color wheel, so that would suggest your sodium lamp is not the most likely culprit and other stray light sources could be present. Beware in particular of status leds on equipment in the same room - something like a blue led on a computer etc. can wreak absolute havoc on color prints.also, would the resulting fog from a sodium lamp not be registering cyan/greenish in colour due to RA-4's reversal?
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