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Found 5 results

  1. BW Images still open as colour, and when manually converted to BW, they lose all their Foveon benefits. There's two methods to obtain BWs from Foveon RAWs, and neither of them work in AP. Images taken with the Merrill series cameras are normally able to deliver BW images without the mushiness of a CFA (colour filter array, such as Bayer), or the heavy resolution loss from an antialias filter, like with the a Leica Monokrom, yet are not prone to strong aliasing artifacts like many other cameras. All test images were captured in BW, latest camera firmware, and open properly in some other applications as BW (however, some LibRaw demosaic engine apps open them as colour, suggesting LibRaw as a possible element for the problem. Note however, that digiKam which uses LibRaw 1.19 builds these image thumbnails correctly in BW, and it is configured not to extract the embedded jpeg - it is building a downsampled version of the raw). Forcing BW RAWs to convert from colour to BW in Affinity Photo for the nearly 9 months of production and beta AP versions results in severely downgraded noise and detail and tonal range. How can I support Affinity support getting the issue posted to LibRAW's devs, so that it gets added into their mix of stuff 'in the queue' to be prioritized? I'd really prefer if it had the gravity of a respected LibRaw integrator (Affinity) verifying that it's not some lone user that hasn't done any due diligence. As well, the LibRAW folks might not otherwise appreciate that this affects all Merrill sensor Foveons (not all Sigma cameras, but a large percentage of the current user base).
  2. BW Images still open as colour, and even if manually converted to BW, they lose all the Foveon benefits. There's two methods to obtain BWs from Foveon RAWs, and neither of them work. Images taken with 1:1:1 Foveons (such as those with the Merrill series sensors) are normally able to deliver BW images without the mushiness of a CFA (colour filter array, such as Bayer), or the heavy resolution loss from an antialias filter, like a Leica Monokrom, yet are not prone to strong aliasing artifacts like other cameras. All test images were captured in BW, latest firmware, and open properly in many other applications as BW (however, some LibRaw demosaic engine apps open as colour, suggesting a possible source for the problem, for someone within Appian to register this bug to the LibRaw community). Forcing BW RAWs to convert from colour to BW in Affinity Photo for the last 8 months (all production and beta versions) results in severely downgraded noise and detail and tonal range. Thx.
  3. BW Images still open as colour, and even if converted to BW, lose all the Foveon benefits. There's two ways to obtain BWs from Foveon RAWs, and neither of them work. Images taken with 1:1:1 Foveons (such as those with the Merrill series sensors) are able to deliver BW images without the mushiness of a colour filter array, or the heavy resolution loss from an antialias filter, like a Leica Monokrom, yet are not prone to strong aliasing artifacts like other cameras. All test images were all captured in BW, latest firmware, and open in many other applications as BW (some open in colour, and two of those use LibRaw). Manually forcing them to convert to BW in Affinity Photo for the last nearly 8 months (all production and beta versions) results in severely downgraded noise and detail and tonal range.
  4. Members 12 59 posts BW Images still open as colour, and even if converted to BW in AP, it loses all the Foveon benefits (not very usable). There's two ways to obtain BWs from Foveon RAWs, and neither works. This has been occurring for six months of production and beta releases, and is not a newly reported issue.
  5. BW Images still open as colour, and even if converted to BW, lose all the Foveon benefits. There's two ways to obtain BWs from Foveon RAWs, and neither works. Similar crops below from the same image, all at 200% zoom (slight variations in cropping). Most recent of multiple posts (prior beta) Above: AP 1.7.2.414 choosing BW Above: AP 1.7.2.414 choosing BW and only using blue channel Above: IrfanView 4.5.2 as opened (uses DCRaw) Above: Sigma Photo 6.6.1 Export using Blue Channel only
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