In my continuing experiments on 35mm negatives to try and reduce the effects of popping in my Omega B66, I would like to try simply removing the glass from a B+W clear filter and using it as a top glass over the negative in my glassless carrier.
Previously I experimented with using the glass from Gepe Anti-Newton slide mounts on top of the negative, but I usually got newton rings anyway. I thought next I might try adding the very thin metal frame from inside the slide mount to the sandwich, placing it between the negative and the glass. This would allow a tiny bit of air space between the negative and glass. But I haven't tried this due to the other problems I would still face: the slight anti-newton texture is sometimes visible in the print, and the pieces of glass in the Gepe slide mounts seem to always have small flaws in them, which can show up in printing. So I've abandoned the slide mount idea for now.
If I use the B+W optical filter glass on top of the negative, I assume newton rings will be a constant problem. I'm wondering if anyone has any experience with anti-newton sprays. Do these work? Are there any residual effects on the negative?