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Diffusion filter · #1 most loved

CineBloom diffusion filter

by Moment

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The halation filter Reggie shoots on his Color Negative recipe. He runs 5%, the community's sweet spot is 10%, and 20% is the full dreamy bloom - the Buy button goes to 20%, the only strength Amazon currently stocks.

Diffusion filters are how you get the soft film glow that settings alone can't fully fake: highlights bloom, contrast eases, skin smooths. CineBloom is the community's name-brand pick, repeatedly framed as "what the HDF should have been". Strength is taste: Reggie shoots 5% for subtlety, the community calls 10% the sweet spot, and 20% is the full dream (the same listing family carries every strength). The honest cons: it costs real money, and it visibly trades away some contrast - that IS the effect. Mounts via the NiSi 49mm adapter; skip it on HDF bodies, which have diffusion built in.

What the community says
This is what HDF should have been in my opinion.u/dbfseventsd on r/ricohGR
Cinebloom ruins the overall contrast, blacksu/Own_Firefighter_1639 on r/ricohGR
Compatibility

49mm - needs the NiSi adapter

GR IIIGR IIIxGR IVGR IV Monochrome

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