![]() CCD machines don't have this issue and can scan 3D objects like coins, rocks, textured paper, and many other things just fine but have a tiny bit of lens distortion. They can't get good scans for things with any depth, including laminated photos. ĬIS machines have zero depth of field so anything not in contact with the glass is out of focus. Take a look at the link below to see some examples and get a basic understanding. The V39 uses a CIS sensor which changes everything in regards to how the machine works compared to one with a CCD. Anything between 24 and 48 just isn't common. Consumers have the option of buying scanners that output 24-bit or 48-bit, and 48-bit output is a plus.Įven cheap DSLRs with limited dynamic range benefit from processing RAWs at a high bit depth and a lot of the programs people use default to a 24 or 48-bit workspace. ![]() 48-bit is effectively the successor to 24-bit for quality since it has practically limitless potential for use and our modern hardware can handle processing it just fine. Software has evolved and there are now many programs that can process and take advantage of 48-bit data. Imaging devices not being able to reach the true limits of a 48-bit space is kind of the point. Jumping from 256 levels to over 65 thousand levels is overkill but that's ok. If a scanner captures even 300 shades that's a reason to use a higher depth. It doesn't matter if a scanner only captures 10 bits worth of data per color, being able to get images in higher than 8 bits per color is where the value is. No good machine operates at 24-bits internally. There are a lot of scanners with 30/36/42/48 bit sensors (10/12/14/16 bpc) that output 24-bit images. Most scans are edited by the scanner/program (for a basic gamma correction at least) and for many years machines have been scanning and processing at a high bit depth for the sole purpose of delivering a higher quality processed 24-bit image to the user. High bit depth mostly helps with posterization and preserving detail during edits.Īll scans get edited either by hardware/software or by the user in one way or another. If I buy the V39 and use VueScan, will I be able to transfer at a full 48bits that the scanner captures or is the 24bit external transfer a hardware-end fixed bottleneck?ĮDIT: not to mention, the V39 is 48bit internal, meaning it can scan at 48 but the transfer is downsampled (pg.3) to 24 bitsĬonsumer flatbeds don't get enough precision out of their scans for 48bit scans to add noticable depth anyways. But the V600 having 48bit external transfer and the V39 only being at 24, that's an exponential cut to the color depth of my images.Īs a college student, the portability of the V39 would be a godsend but the damned 24bit external transfer is disheartening. ![]() The V39 is backpack size and the lid is removable, meaning I can make more creative choices making larger scans of anything (it's also usb powered so I can quite literally scan the walls if I wanted to). My catches are: $80 v $200 and 24bit v 48bit scans. I'd predominantly be using them for film, but I also scan my own art and want to use scanners creatively. ![]() I'm having trouble deciding between these two scanners. EDIT: SOLVED, ty /u/TADataHoarder for your comment ![]()
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