Halation adds a halo; bloom spreads bright light. For a warm fringe around a lamp, backlit edge or reflection, start with Halation. For a softer, more luminous light source, start with Bloom. In Artfkt, Halation has a selectable Tint, while Bloom carries the colors of the bright areas it spreads. A blue light can produce blue bloom.

The comparison above uses one photograph with no added grain, color grade or exposure change. These are two deliberately visible treatments, not a claim that either reproduces a particular film stock. Below, you can inspect the same details, copy the settings and decide which treatment helps your photo.

To darken the surroundings instead of spreading highlights, follow how to add a vignette effect to a photo. That guide compares Strength, center position and feathering on one image.

Halation vs bloom at a glance

Choose by what you want the light to do
TreatmentVisible result in ArtfktStart here when…
Halation

A tinted halo outside bright details; the red-orange recipe adds warmth.

You want the bulbs or backlit edges to pick up a warm film-inspired fringe.

Bloom

Bright areas spread into their surroundings, carrying their source colors.

You want lights to feel more luminous without giving every halo the same tint.

Both, lightly

Colored halos plus a broader glow; the effects can quickly build up.

Either treatment alone feels incomplete. Reduce each Strength before combining them.

Real film halation has a specific physical origin. CineStill describes light reflecting from a film base or pressure plate, producing glow around bright points. It can occur in black-and-white photography too; red-orange is not its universal definition. Digital effects interpret that appearance in different ways. Darkroom’s documentation also distinguishes a warm halation treatment from the outward spread of bloom. Its controls and rendering are separate from Artfkt’s.

Compare one photo, not two different exposures

This CC0 photograph by Swetha B Chandran has small warm bulbs, a turquoise lantern and dark gaps between them. Those give us three useful checks: halo color, the width of the light spill and whether the railing remains distinct. The source already contains some photographic glow. “Original” means no Artfkt effect was added; it does not mean a glow-free photograph.

Original turquoise lantern and warm string lights against a dark balcony railing.
Original — the source already has some glow around its lights.
The same lantern photo with red-orange halos around the string lights and their table reflections.
Halation only — warm halos follow the bright bulbs and reflections.
The same lantern photo with brighter, softly spreading light around the bulbs and turquoise lantern.
Bloom only — light spreads while retaining the source’s warm and cool colors.

Try Bloom on your photo — the free demo opens with Bloom on the sample image. Choose Use your own image to replace the photo while keeping the effect settings. The link opens the default Bloom controls; it does not preload this article’s recipe. Try Halation on your photo to compare its default sample and controls in the same free demo. Apply the article’s settings separately. Halation is in Film; Bloom is in Light.

In the Halation version, look at the red-orange rims around the white string lights and their reflections near the bottom of the frame. The added tint contrasts with the cyan lantern. In the Bloom version, the lantern stays cyan and the bulbs stay warm-white as their brightness spreads. The effect is quieter than the red halo at whole-photo size, so check the matching close-up too.

Identical close-ups of the balcony bulbs: original light, a red-orange halo with Halation, and a pale spreading glow with Bloom.

The same upper-light crop in all three versions. Labels match the full-photo comparison; no extra effect was applied to the close-ups.

For a cover with small lettering, judge the glow at the size the artwork will be viewed. A halo that is attractive close up can merge nearby bulbs or compete with the words when reduced. Our film-emulation software guide shows a useful next step: treat the photograph and keep the headline on a separate editable text layer.

Recreate the comparison in Artfkt

Use an image with distinct bright details against darker surroundings. Keep its crop and exposure fixed while choosing the effect. These examples were rendered at 960 × 1280, with animation off, Normal blend and Mix at 100%. Apply only one of the following effects at a time.

  • Halation: Spread 2.0%, Tail 0.72, Strength 2.40, Highlight threshold 0.65, Tint #ff3414 at full opacity.
  • Bloom: Spread 2.00%, Strength 2.50, Highlight threshold 0.65.

Spread is shown as a percentage in the controls; the stored value for both recipes is 0.02. The matching threshold keeps that setting fixed, but the effects use different processing and their Strength scales do not represent equal perceived brightness. These are chosen examples, not an intensity-matched scientific test or universal starting values.

Start by raising Highlight threshold until the glow follows the lights you care about rather than brightening every pale surface. Then adjust Spread for its reach and Strength for its contribution. Halation’s Tail changes the halo’s falloff; its Tint changes the added color. Change one control at a time and compare with the effect disabled.

In the demo or desktop, compare the two treatments independently before trying them together. If you combine them, keep the order fixed: Bloom can change the bright input that Halation receives, and Halation can add bright color that Bloom then spreads. Lower both Strength values first. The individual examples above do not include a combined stack.

When the glow gets in the way

The photo looks hazy. Lower Strength or raise Highlight threshold. Check the dark spaces between lights rather than judging only the brightest bulb. Wider Spread can make neighboring halos meet.

Halation looks too red. Reduce Strength, change Tint or reduce its opacity. A warm halo is a creative choice; adding more red does not make a digital image more faithful to every film stock.

Little happens. Look for a genuinely bright point against a darker area. A flat, evenly lit picture gives these highlight-based effects less to work with. Try a different threshold before increasing every control.

A blown-out bulb has no detail. Neither effect recovers detail missing from the source. Return to a less-clipped original if one is available. Bloom and Halation add light; they are not highlight-recovery tools.

You want a screen glow instead. Phosphor structure and scanlines are another visual choice. See CRT vs VHS effects before adding a film-style halo to a television treatment.

Try your image, then choose what to keep

Open Bloom in the free demo in your browser. Choose Use your own image, keep Still selected, then adjust Highlight threshold, Spread and Strength. Use Export → PNG to save a still. Selected images are processed on your device.

Choose Artfkt desktop for Mac and Windows when you want to save and revisit an editable composition or use the remaining desktop collections. Check the computer requirements before buying. Free-demo export is already included; saved projects and the full collection library are the reasons to move to desktop.

Sources checked 8 November 2026: CineStill’s halation explanation, Darkroom’s Bloom & Halation documentation, and the linked CC0 photograph. The pictured effects are actual Artfkt renders, not hands-on tests of those vendors’ software.