Scanning slides feels superficially similar to scanning negatives, but almost every decision differs. Slides are positive images already \u2014 no inversion is required. They sit in cardboard, plastic, or glass mounts that need different holders. Dust on slides is dark against bright image areas, not bright against dark base. And the tonal range of a well-exposed slide is far wider than a typical negative, which means exposure-on-scan matters more.<\/p>\n
This guide covers the slide-specific decisions: which scanner, which DPI, which polarity settings, and how to clean up the results. For the broader scanning workflow, see our pillar guide on scanning film at home<\/a>.<\/p>\n The Epson Perfection V600 and V850 are the default choice for anyone scanning slides at home. They handle mounted 35mm slides in batches via a dedicated holder, and the V850 in particular produces resolution that is genuinely good enough for medium-sized prints.<\/p>\n Flatbed scanning is slow per frame (2\u20133 minutes with Digital ICE on) but the holders handle batches of 12 mounted slides at a time, so total workflow time is reasonable for a weekend.<\/p>\n Increasingly the default for serious shooters. A macro lens, a lightbox, a slide holder, and your digital camera. The results are very good, the throughput is excellent (one frame per second with practice), and the cost \u2014 if you already own the camera \u2014 is modest.<\/p>\n The single disadvantage: DSLR scanning has no infrared channel<\/strong>. Digital ICE, FARE, and SilverFast iSRD are all unavailable. Software dust removal is the only option \u2014 which is the gap DustMagic was built for, as a small specialist step that sits alongside your existing Lightroom or Photoshop workflow.<\/p>\n If you have several boxes or carousels of slides, using a professional slide scanning service is often the fastest and most cost-effective option. A good service will handle the entire process for you: cleaning, scanning, colour correction, file naming, and delivery as TIFF or JPEG.<\/p>\n The important question to ask is not just what scanner they use, but how they deal with dust.<\/p>\n One longstanding UK option is theslideconverter.co.uk. <\/a>To be completely upfront: the business was founded by some of the same people behind DustMagic, because after years of scanning slides professionally they built the dust-removal tool they wished had existed.<\/p>\n Most scanning services rely only on infrared cleaning such as Digital ICE. That works well on many colour slides, but it is not perfect, and it is ineffective on Kodachrome. Slide Converter uses Digital ICE where appropriate, then runs a DustMagic pass on the scans afterwards to remove the remaining specks, fibres, and small defects that IR misses, particularly on older mounted slides and DSLR-scanned archives.<\/p>\n A worthwhile service should ideally:<\/p>\n If a service cannot tell you how they remove the remaining dust after scanning, there is a good chance you will still spend hours spotting defects manually afterwards.<\/p>\n For large family archives, old slide carousels, or hundreds of mounted slides, sending them to a scanning service that uses DustMagic can save days of work while giving cleaner results than most home workflows.<\/p>\n More is not always better.<\/p>\n The trade-off: higher DPI means larger files, slower scanning, and \u2014 paradoxically \u2014 more visible dust. Every speck on the film surface shows up sharper at 4,800 dpi than at 2,400. This is one of the reasons batch dust removal becomes essential above 3,200 dpi.<\/p>\n 16-bit per channel for anything you care about. The file is twice the size of 8-bit but it gives you headroom for colour grading and dust-mask blending without banding. Slides have a wider tonal range than almost any digital image \u2014 it is worth the bits.<\/p>\n TIFF is the right default for archival masters. Lossless, widely supported, carries full metadata, and survives re-editing without quality loss. JPEG is fine for final delivery but should not be your scan format.<\/p>\n Slides are positives. In scanning software, make sure you are capturing in positive mode \u2014 not inverting a negative. In DustMagic, the Film Type setting is Slides (dark dust)<\/strong>. This tells the detector to look for dark specks against brighter areas rather than bright specks against negative base.<\/p>\n Enable it for Kodachrome-avoidant colour slides. IR dust removal is excellent on Ektachrome, Provia, Velvia, and Fuji professional slide films.<\/p>\n Do not enable IR on Kodachrome.<\/strong> The silver in Kodachrome’s emulsion interferes with IR detection and the result is a scan that looks heavily retouched in all the wrong places. Kodachrome also falls outside DustMagic’s scope for the same silver-content reason \u2014 the honest Kodachrome workflow is a careful physical clean (Staticwisk + blower + PEC-12 if needed), scanning without IR, then a manual Lightroom Heal pass on your keepers.<\/p>\n No matter how clean your darkroom habits, slide scans show dust. A slide has been sitting in a mount for somewhere between months and sixty years. It has been through a projector, shuffled through carousels, maybe sat in a box in a loft. Even lab-fresh slides have a few specks.<\/p>\n The cleanup workflow:<\/p>\n A good starting profile for 35mm slides on a DSLR rig at 3,200 dpi:<\/p>\n Newton’s rings on glass-mounted slides.<\/strong> Concentric rainbow-ish bands caused by interference between the slide surface and the glass. Not dust \u2014 not something DustMagic removes. Anti-Newton glass mounts or a fluid-mount accessory are the only real solutions.<\/p>\n Fungus.<\/strong> Old slides sometimes show fungal growth: web-like structures that are inside the emulsion, not on the surface. Not dust, not removable with any automated tool. A specialist restoration service is the honest recommendation.<\/p>\n Colour shifts and fading.<\/strong> Ektachrome from the 1970s often has a magenta shift; Kodachrome ages far better. This is colour grading, not dust removal. Handle it in Lightroom after the dust pass.<\/p>\n Very large specks that DustMagic doesn’t catch.<\/strong> The detector deliberately leaves bigger features alone so image detail \u2014 car grilles, small text, architectural lines \u2014 never gets flagged as dust. For the occasional oversized defect, reach for DustMagic’s built-in Dust Wand<\/strong> (click the speck, it’s gone) or finish it in Lightroom.<\/p>\n For a typical slide scan \u2014 3,200 dpi, DSLR rig, fresh anti-static pass on the physical film, DustMagic Balanced preset:<\/p>\n This replaces roughly 2 hours of per-frame spotting with about 20 minutes of batch processing plus quick manual touch-ups. On a full slide carousel of 80 frames the time saving approaches a full working day.<\/p>\nChoose a Scanner<\/h2>\n
Flatbed scanners<\/h3>\n
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Dedicated film scanners<\/h3>\n
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DSLR or mirrorless scanning<\/h3>\n
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Don’t Want to Scan Slides Yourself?<\/h2>\n
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Settings That Actually Matter<\/h2>\n
Resolution (DPI)<\/h3>\n
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Bit depth<\/h3>\n
File format<\/h3>\n
Polarity<\/h3>\n
Digital ICE \/ SilverFast iSRD (if your scanner has it)<\/h3>\n
The Cleanup Step (Every Slide Scan Needs One)<\/h2>\n
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Running DustMagic on a slide batch<\/h3>\n
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Common Slide-Specific Problems<\/h2>\n
Expected Results<\/h2>\n
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Related Reading<\/h2>\n
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