RE: [APML] Layers

["Richard Klappal" <klappal@xnet.com>]

I'm still at PhotoShop version 5, but for most image adjustment work I use
PictureWindow Pro. Color balancing, levels, and saturation adjustments seem
to have finer, superior control than PS tho the user interface takes some
getting used to, especially with masks.

It has full 16-bit/48-bit support (or 64-bit support, if you have the alpha
channel) for all operations.

Richard

-----Original Message-----
From: astro-photo-bounces@seds.org
[mailto:astro-photo-bounces@seds.org]On Behalf Of Jeff Crilly
Sent: Sunday, 14 November, 2004 23:36
To: Discussion of Film Astrophotography
Subject: Re: [APML] Layers


>
> >So, I have been scanning to 16bit (and actually
> >getting the scanner to do the initial levels; i.e.
> >fit the image range into the available bits),
>
> Problably you are not scanning at 16bits. The bit deph of scanners rarely
go over 14bits. The output is a 16bits TIFF, FITS or RAW
image, but it doens't means that you scanned the film with that accuraccy.
>

Epson claims the 4870 (which is what I'm using) does 48bits/pixel "internal"
and "external".

Hence my hesitation to knock the image to 8bits when I'm tweaking it in PS.
Its simply a waste of the scanned bits.

jeff

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