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Found 7 results

  1. 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.
  2. 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.
  3. 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.
  4. 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
  5. Resolved: Can confirm 1.7.1.404RC2 has full control over noise removal, especially chroma noise (working since recent betas: thank you so much), and is fully usable now on Sigma Merrill cameras. Also, only as of 404RC2 is EXIF and focus reliably consistent. Outstanding: BW images still open as colour: no benefits from in-camera BW captured images. Additionally, some BW images shot at higher than base ISO open like linear exposure (super dark). Quick test images (apologies for quality): 6745, ISO100, BW: in 1.7.1.367 and .404RC2 has EXIF and focus info, but recent prior betas were partially missing EXIF & focus metadata. In all versions, these open as colour (should be BW). 6742, ISO800, BW: Very difficult trying to extract a workable image from these RAWs (shot higher than base ISO). Opens fine in other RAW editors. Why Not Use Normal Colour to BW (Post-processing Conversion): The key issue behind this is that the Foveon Merrill can capture the full spectrum at every single 'pixel' (photosite), and output it in BW (like a Leica M Monochrom). No demosaicing is required (or ever wanted). When these are shot as BW in the camera, Affinity Photo opens them as normal colour images, and loses all their benefits. For instance, Foveons also normally capture full spectrum at every 'pixel', and when all treated as BW, you can get 3 times as much sampling per pixel as the monochrome Leica, for improved noise. See earlier post (Issue #1): https://forum.affinity.serif.com/index.php?/topic/80333-med-resolution-images-auto-upsampled-to-high-bw-images-import-as-colour/ SDIM6745.X3F SDIM6742.X3F
  6. Hi. Was able to try out Affinity Photo (latest revision over the holidays) for two days before my trial ended. It seems my lenses were not detected, but I think that may be because of the crop factor precion: one camera of mine is crop factor 1.5, whereas the closest database matches were 1.52 or 1.53. Does it need to be an exact match (2nd decimal matching)? Also, the qualities of the program seemed excellent, except I couldn't find where to disable all demosaicing and zero the sharpening. It appeared like both were always being applied to some extent. Would love an additional 5 days test armed with how to do that: if I can, consider this a conditional sale. Thanks!
  7. Photo Beta 1.7.0.178, Windows build on Windows 10 Pro Affected: RAW develop module Observed: Imported image from Panasonic micro four thirds camera does not benefit much from detail refinement. At full strength with a proper radius the image is only a wee bit more sharp than a RAW image imported in Adobe Camera RAW 11 with NO sharpening applied. Third example below shows same image in Adobe Camera RAW with just the default sharpening applied - and even a bit of masking. Note: The demosaic code in use in Affinity Photo (I assume you are using the open source UFRaw, results are similar) render images slightly blurred and does not enhance details much. Perhaps as a result of this Below: Same image developed in Photo with no detail refinement in RAW - now tried with 1px radius unsharp mask applied, factor 2.4 (a lot). 0.8px is probably a bettter setting but still - image suffered from a poor demosaic technology. The unsharp mask had less to work with. "CITY" is not affected much by any radius. Below: Last example: Left totally unsharpened Nikon RAW image (from expensive, SHARP macro lens) from Camera RAW 11. Right same totally unsharpened Nikon RAW image i Affinity Photo ... and from the Nikon OOC JPG with just a little sharpening for comparison.. ... DxO Photolab 1 with no sharpening (but with lens modules (standard)) for comparison Capture One vs Affinity Photo Top: Unsharpened and sharpened a bit. Nice micro contrast and well defined edges. There is even noise reduction included. (Capture One Pro) Bottom: Unsharpened, sharpened a bit and massively sharpened. Radius is the same but I have to push the factor slider far too much. This causes artifacts on the rest of the image. (Affinity Photo) Disclaimer: To be honest - normally pixel peeping is for amateurs. What matters is the image as a whole on paper or screen. Sometimes you need the details though - and heavily cropped images (sometimes you have to) will look worse than images from other RAW converters. A little smartphonish. And a more effective demosaic would give sharpening tools a little more to work with - images will be sharpened more naturally. Especially minor details. I am not after the sharpest demosaic method on the market - I am concerned about the rendering of the image, thats why I use Capture One Pro myself, but in Affinity Photo RAW images are undercooked by... UFRaw?
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