Roy some of the difference is leaf doent use microlens or high pass filter on the ccd either.. so Slower isos sharper images. Usually still needs some sharpening. You are correct jpg set to 12 is lossless in ps. That was actuallt added in jpg 2 standard in the late 90s. Most software doesnt do it. Photoshop does. It even in in the manual I believe. I send a page number when I get in the studio in a bit.
From my Android phone on T-Mobile. The first nationwide 4G network.
-------- Original message --------
From: PhotoRoy6@xxxxxxx
Date: 08/27/2013 6:45 AM (GMT-08:00)
To: List for Photo/Imaging Educators - Professionals - Students <photoforum@xxxxxxxxxxxxxxxxxx>
Subject: Re: jpg
This is why I asked about the lossless jpg formats. When I started
shooting the Pentax in March I could see no difference in the RAW format of the
even lit scenes I was photographing. Supposely if one uses the 12
compression jpg is lossless. But I can find no authority that will say this
definitively. The late Bruce Fraiser said all digital images needed sharpness
correction before printing but he was oriented toward commercial printing
and inkjet printing has kept improving since his death.
Now you are shooting 16 bits and sending the 16 bits on to the Epson so Raw
should be sharper because jpeg is only 8 bits so there is an immediate loss
of detail mathematically.
Roy
In a message dated 8/26/13 11:30:06 P.M. Eastern Daylight Time,
randyslittle@xxxxxxxxx writes:
There is a marked difference when I put my epson on and feed my epson 16bit per channel processing. (my leaf records in 16bit.) I have never scene a jpg off any camera that didn't need more sharpening then the RAW for the simple reason JPG is lossy (well you can get lose-less jpg but no camera I know does it)
