B4 Warm Tone | Darkroom B&W Film Preset for Lightroom Desktop & Mobile

B4 is for portrait and fine art photographers who want the warmth and refinement of traditional darkroom B&W printing in their digital workflow.

For photographers whose work references the visual tradition of classic photography — documentary, fine art, editorial from the film era — where warm-tone prints were the standard for professional quality.

For wedding photographers who want a warmer, more romantic B&W quality than the clean silver of B1 or B2 provides.

For photographers who have experimented with B&W and found neutral silver too cold for their aesthetic — B4's warmth adds emotional resonance without going obviously stylised.

The warmth is authentic, not obvious. B4's amber quality references real darkroom chemistry — it is subtle enough to feel inherent to the photo rather than applied as an effect. The difference between B4 and B1 is one of feeling rather than one of obvious visual treatment.

It is the most emotionally resonant preset in the collection. Warm-tone B&W photographs have a specific emotional quality — nostalgic, intimate, timeless — that neutral silver does not produce. B4 creates this quality reliably.

It suits portrait and fine art work specifically. The warmth of B4 flatters skin in monochrome in a way that neutral silver cannot — the amber tone in skin areas adds a luminous richness that reads as the best quality traditional portrait photography.

It references a specific photographic tradition. Warm-tone darkroom prints are associated with the finest portrait and documentary photography of the 20th century. B4 places your work within that tradition.

1 × B4 Warm Tone DNG file — for Lightroom Mobile on iPhone and Android
1 × B4 Warm Tone XMP file — for Lightroom Classic on Mac and Windows
Step-by-step installation guide
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This preset captures the moody, faded aesthetic and refined grain similar to the iconic B4 black-and-white filters. It’s the perfect professional alternative for those wanting an artistic, analog-inspired monochrome look that tells a deeper story. By emulating the chemical aging process of classic darkroom prints, the B4 ensures your digital shots have a matte, atmospheric finish that feels both timeless and deeply personal on both desktop and mobile.

B4 works best on photos with good, even exposure — the warmth reads most naturally when the tonal range is full. Underexposed photos can make the warm tone read as muddy rather than rich.

For portrait photography: apply at 85-90% and check that highlights in skin areas have the luminous quality you want. If skin reads as slightly heavy, pull Highlights -10 and add Orange Luminance +8 in Color Mix.

For fine art and landscape: full strength. The warm tone adds a timeless, considered quality to any subject.

On phone photos: 80-85% strength.

Is the warmth in B4 visible or subtle? Subtle. B4's warmth is calibrated to read as richness and depth rather than as obvious colour toning. Viewers will describe photos edited with B4 as beautiful or timeless rather than warm-toned. If you want obvious sepia or brown toning, B4 is not the right preset — that effect requires a different approach.

What is the difference between B4 and B6 Matte Film? B4 adds warmth to a standard contrast range — the warmth is the defining characteristic. B6 is primarily about the matte, faded quality with lifted blacks — cooler in tone but with the organic softness of aged film. B4 for darkroom warmth, B6 for the faded, aged aesthetic.

Does B4 work for landscape photography? Yes — particularly for warm-light landscapes, golden hour, and autumn scenes where the inherent warmth in the original light pairs naturally with B4's amber tone.